NTN National Testing Network Exam — Questions and Answers
Question 1: What is the first step in performing CPR on an adult?
- Give rescue breaths
- Begin chest compressions
- Open the airway
- Call for emergency medical services (EMS) (Correct answer)
Correct answer: Call for emergency medical services (EMS)
The first and most critical step in performing CPR on an adult is to ensure safety and immediately call for emergency medical services (EMS). This establishes the vital link to professional medical help, which is essential for the patient's survival. After calling for help, the rescuer should then proceed to check for breathing and begin chest compressions if the person is unresponsive and not breathing normally.
Question 2: Which sentence correctly uses an apostrophe?
- The officers' reports were submitted on time. (Correct answer)
- The officers report's were submitted on time.
- The officer's were submitting their reports.
- The officer's report's were submitted on time.
Correct answer: The officers' reports were submitted on time.
'Officers'' is the correct plural possessive form showing that the reports belong to multiple officers.
Question 3: An officer witnesses a fight and must later testify. Which habit BEST supports accurate testimony?
- Relying entirely on memory without notes
- Writing detailed notes immediately after the incident (Correct answer)
- Reviewing other officers' reports before writing your own
- Waiting until the court date to organize recollections
Correct answer: Writing detailed notes immediately after the incident
Immediate note-taking captures accurate details before memory fades and is the foundation of reliable testimony.
Question 4: A directive states: 'Supervisors must review all use-of-force reports within 48 hours.' A report is submitted Friday at 9 AM. When is the review deadline?
- Saturday 9 AM
- Monday 9 AM
- Friday 5 PM
- Sunday 9 AM (Correct answer)
Correct answer: Sunday 9 AM
48 hours after Friday 9 AM is Sunday 9 AM.
Question 5: Which transition word best signals a conclusion or summary?
- However
- In conclusion (Correct answer)
- Meanwhile
- Furthermore
Correct answer: In conclusion
'In conclusion' signals that the writer is summarizing or drawing the argument to a close.
Question 6: When analyzing a data set of officer performance metrics, the median score is 78 and the mean score is 72. What does this suggest about the distribution of scores?
- The distribution is skewed to the left (negatively skewed) (Correct answer)
- There is no relationship between mean and median
- The distribution is skewed to the right (positively skewed)
- The distribution is perfectly symmetrical
Correct answer: The distribution is skewed to the left (negatively skewed)
When the mean is lower than the median, the distribution is left-skewed (negatively skewed), indicating some unusually low scores are pulling the mean downward.
Question 7: If 3 officers can search 9 rooms in 90 minutes, how long would it take 1 officer to search 9 rooms?
- 30 minutes
- 270 minutes (Correct answer)
- 90 minutes
- 180 minutes
Correct answer: 270 minutes
3 officers take 90 min, so 1 officer takes 3 × 90 = 270 minutes.
Question 8: You are ordered by a supervisor to perform an action that you believe is clearly illegal. What should you do?
- Refuse the order, document the request, and report it through proper channels (Correct answer)
- Follow the order since supervisors are responsible for their own directives
- Ask a fellow officer to carry out the order in your place
- Follow the order and report it anonymously after the fact
Correct answer: Refuse the order, document the request, and report it through proper channels
Officers are not required to follow illegal orders and have a duty to refuse and report such orders through the chain of command or internal affairs.
Question 9: A passage reads: 'Dispatch logs are considered official records and must be retained for a minimum of five years.' What is the MINIMUM retention period?
- 10 years
- 3 years
- 1 year
- 5 years (Correct answer)
Correct answer: 5 years
The passage explicitly states the minimum retention period is five years.
Question 10: An officer stops a person for a minor infraction. The person claims the stop is racially motivated. The BEST response is to:
- Apologize and let the person go without addressing the infraction
- Explain the specific reason for the stop professionally and respectfully (Correct answer)
- Deny any bias and issue the citation without discussion
- Escalate to a supervisor immediately without engaging
Correct answer: Explain the specific reason for the stop professionally and respectfully
Explaining the legal reason for the stop professionally demonstrates transparency and reduces tension.
Question 11: A new policy requires all officers to complete an online training module within 30 days. After 20 days, you realize you have not started. What is the best approach?
- Ask a colleague who completed it to share the answers
- Wait until the last day and rush through it
- Request a 30-day extension
- Begin the training immediately and create a schedule to complete it within the remaining 10 days (Correct answer)
Correct answer: Begin the training immediately and create a schedule to complete it within the remaining 10 days
Beginning immediately and creating a schedule demonstrates accountability, time management, and commitment to professional development — all essential general skills for public safety professionals.
Question 12: Solve for x: 3x + 7 = 22
- x = 4
- x = 6
- x = 3
- x = 5 (Correct answer)
Correct answer: x = 5
3x = 22 − 7 = 15, so x = 15 ÷ 3 = 5.
Question 13: You are told to memorize a list of 8 items during an NTN test. The most effective strategy is to:
- Skip items you do not immediately recognize
- Group the items into meaningful categories (Correct answer)
- Repeat the list aloud rapidly
- Focus only on the first and last items
Correct answer: Group the items into meaningful categories
Grouping items into categories is a proven chunking technique that improves short-term memory retention.
Question 14: Which sentence demonstrates correct subject-verb agreement?
- The list of requirements are available online.
- The group of officers were trained last week.
- Neither of them are attending the session.
- Each of the candidates is required to register. (Correct answer)
Correct answer: Each of the candidates is required to register.
'Each' is a singular indefinite pronoun and takes the singular verb 'is.'
Question 15: Which law explains the mechanical advantage gained by using a lever?
- Boyle's law
- Bernoulli's principle
- Law of conservation of mass
- Law of the lever (Archimedes' principle) (Correct answer)
Correct answer: Law of the lever (Archimedes' principle)
The mechanical advantage gained by using a lever is explained by the Law of the Lever, often attributed to Archimedes. This principle states that for a lever to be in equilibrium, the product of the force on one side and its distance from the fulcrum (torque) must equal the product of the force on the other side and its distance. By adjusting the position of the fulcrum, a smaller input force can be used to move a larger load, demonstrating the lever's ability to multiply force.
Question 16: A passage reads: 'Evidence must be logged, tagged, and stored in the secured evidence room immediately after collection.' Which step comes SECOND?
- Collected
- Tagged (Correct answer)
- Logged
- Stored
Correct answer: Tagged
The order given is log, tag, then store — so tagging is the second step.
Question 17: A store sells items at a 25% discount. If the original price is $80, what is the sale price?
- $70
- $60 (Correct answer)
- $65
- $55
Correct answer: $60
Discount = 25% of $80 = $20, so the sale price = $80 − $20 = $60.
Question 18: Which of the following is a complete sentence?
- Because the car was unlocked.
- Running quickly away from the scene.
- The suspect fled on foot toward the alley. (Correct answer)
- After the officer arrived at the scene.
Correct answer: The suspect fled on foot toward the alley.
A complete sentence has a subject and predicate; only the first option has both.
Question 19: Effective active listening during an interview involves:
- Interrupting to correct factual errors
- Multitasking while the person speaks
- Finishing the witness's sentences to save time
- Maintaining eye contact, nodding, and summarizing what was said (Correct answer)
Correct answer: Maintaining eye contact, nodding, and summarizing what was said
Active listening includes nonverbal cues and paraphrasing to confirm understanding.
Question 20: A complainant is upset and yelling at an officer at the front desk. The BEST response is to:
- Have them removed from the building
- Match their energy to show authority
- Stay calm, listen fully, and address the concern respectfully (Correct answer)
- Interrupt and demand they calm down first
Correct answer: Stay calm, listen fully, and address the concern respectfully
Remaining calm and listening validates the complainant's frustration and helps de-escalate the situation.
Question 21: Which behavior in a team setting is most likely to undermine group cohesion?
- Meeting deadlines consistently
- Withholding important updates from teammates (Correct answer)
- Sharing information openly
- Asking clarifying questions
Correct answer: Withholding important updates from teammates
Withholding information creates mistrust and disrupts the coordination needed for effective teamwork.
Question 22: A passage reads: 'Non-lethal devices such as tasers and pepper spray are alternatives to lethal force.' The passage suggests these devices are used to:
- Avoid using lethal force (Correct answer)
- Replace firearms entirely
- Signal for backup
- Punish suspects
Correct answer: Avoid using lethal force
The passage states non-lethal devices are alternatives to lethal force, implying their purpose is to avoid lethal force.
Question 23: What process do plants use to convert sunlight into food?
- Photosynthesis (Correct answer)
- Digestion
- Respiration
- Fermentation
Correct answer: Photosynthesis
Photosynthesis is the process by which plants use sunlight, water, and CO₂ to produce glucose and oxygen.
Question 24: Which of the following is equivalent to 3/4?
- 0.70
- 0.43
- 0.34
- 0.75 (Correct answer)
Correct answer: 0.75
3 ÷ 4 = 0.75.
Question 25: Which element is essential for human red blood cells to carry oxygen?
- Iron (Correct answer)
- Calcium
- Potassium
- Sodium
Correct answer: Iron
Iron is a key component of hemoglobin, the protein in red blood cells that binds and transports oxygen.
Question 26: A suspect fled on foot at 8 mph. An officer began pursuit 5 minutes later at 12 mph. How many minutes will it take the officer to catch the suspect?
- 15 minutes
- 8 minutes
- 12 minutes
- 10 minutes (Correct answer)
Correct answer: 10 minutes
The suspect's 5-minute head start at 8 mph = 0.667 miles; closing speed is 4 mph; 0.667 ÷ 4 = ~10 minutes.
Question 27: You stop a vehicle for a broken tail light. The driver offers you cash to 'forget about it.' You should:
- Accept the cash only if the amount is small and covers your expenses
- Accept the cash but still write the citation
- Decline the cash and let the driver go with a warning
- Decline the cash, issue the citation, and report the bribery attempt (Correct answer)
Correct answer: Decline the cash, issue the citation, and report the bribery attempt
Accepting a bribe is a crime; officers must refuse, issue the appropriate citation, and report the attempt through proper channels.
Question 28: You respond to a call and discover that the suspect is a personal friend. What is the MOST ethical course of action?
- Ignore the friendship and handle the call without telling anyone
- Disclose the relationship to your supervisor and request reassignment if possible (Correct answer)
- Handle the call yourself but be lenient because of the friendship
- Ask your friend to leave the scene before backup arrives
Correct answer: Disclose the relationship to your supervisor and request reassignment if possible
Disclosing potential conflicts of interest to a supervisor is the ethical standard; it protects the officer, the investigation, and the integrity of the process.
Question 29: What is the median of the following set: 4, 7, 2, 9, 5?
- 6
- 4
- 5 (Correct answer)
- 7
Correct answer: 5
Ordered: 2, 4, 5, 7, 9 — the middle value is 5.
Question 30: Which layer of Earth's atmosphere contains the ozone layer?
- Stratosphere (Correct answer)
- Thermosphere
- Mesosphere
- Troposphere
Correct answer: Stratosphere
The ozone layer, which absorbs harmful UV radiation, is located in the stratosphere.
Question 31: An officer earns $52,000 per year. After a 5% raise, what is the new annual salary?
- $53,000
- $55,000
- $54,600 (Correct answer)
- $57,000
Correct answer: $54,600
5% of $52,000 = $2,600; $52,000 + $2,600 = $54,600.
Question 32: An officer reviews a scene photo for the NTN exam and is asked how many people are present. The best technique is to:
- Count systematically from left to right (Correct answer)
- Count only those facing the camera
- Estimate based on crowd density
- Count only those in the foreground
Correct answer: Count systematically from left to right
A systematic left-to-right scan ensures no person is missed or counted twice.
Question 33: A department budget of $500,000 allocates 40% to salaries, 30% to equipment, and the rest to operations. How much goes to operations?
- $250,000
- $100,000
- $150,000 (Correct answer)
- $200,000
Correct answer: $150,000
100% − 40% − 30% = 30%; 30% of $500,000 = $150,000.
Question 34: What type of motion does a cam convert?
- Linear motion to rotational motion
- Rotational motion to fluid motion
- Rotational motion to linear motion (Correct answer)
- Linear motion to sound waves
Correct answer: Rotational motion to linear motion
A cam is a mechanical component specifically designed to convert rotational motion into reciprocating, or linear, motion. As the cam rotates, its uniquely shaped profile interacts with a follower, causing the follower to move back and forth or up and down in a predetermined pattern. This conversion is a fundamental principle used in many machines, from internal combustion engines to automated manufacturing equipment.
Question 35: A new officer disagrees with a supervisor's decision during a call. What is the BEST course of action?
- Refuse to comply until an explanation is given
- Act independently based on personal judgment
- Follow the supervisor's direction and raise concerns through proper channels afterward (Correct answer)
- File a grievance on the spot
Correct answer: Follow the supervisor's direction and raise concerns through proper channels afterward
Chain of command requires following supervisor directives in the field and addressing disagreements later through proper channels.
Question 36: Which sentence correctly uses 'its' and 'it's'?
- Its important to update the policy manual.
- The department updated it's policy manual.
- It's manual was updated by the department.
- The department updated its policy manual. (Correct answer)
Correct answer: The department updated its policy manual.
'Its' is the possessive form; 'it's' is a contraction for 'it is.'
Question 37: A team member consistently misses deadlines, affecting the whole group. The best initial step is to:
- Immediately report to management
- Do nothing and absorb extra work
- Discuss the issue privately and calmly with the team member (Correct answer)
- Speak negatively about them to others
Correct answer: Discuss the issue privately and calmly with the team member
Addressing performance concerns privately and directly first gives the person a chance to correct the issue without embarrassment.
Question 38: Based on the passage: 'Applicants who fail any section of the NTN exam may retest after 30 days.' What is the minimum waiting period before retesting?
- 30 days (Correct answer)
- 60 days
- 14 days
- No waiting period
Correct answer: 30 days
The passage clearly states a 30-day waiting period before retesting.
Question 39: While on foot patrol you notice a juvenile who appears to be under the influence of alcohol. The juvenile refuses to identify themselves. What is your BEST course of action?
- Call the juvenile's school to have them identified
- Arrest the juvenile immediately for underage drinking
- Detain the juvenile for their safety, attempt to identify them, and notify a supervisor (Correct answer)
- Let the juvenile go since minors cannot be detained
Correct answer: Detain the juvenile for their safety, attempt to identify them, and notify a supervisor
Detaining a juvenile who appears impaired is justified for their safety, and proper procedure requires notification of a supervisor and an attempt to reach parents or guardians.
Question 40: A law enforcement agency collected data showing that 60% of traffic accidents occur at intersections, 25% on highways, and the remainder on residential streets. If 840 accidents occurred last year, how many happened on residential streets?
- 210
- 126 (Correct answer)
- 504
- 84
Correct answer: 126
Residential streets account for 100% - 60% - 25% = 15% of accidents. 15% of 840 = 840 × 0.15 = 126 accidents.
Question 41: An employee notices that a coworker is being treated unfairly. The most ethical response is to:
- Report the concern through appropriate channels (Correct answer)
- Ignore it to avoid involvement
- Gossip about the unfair treatment
- Retaliate against the person causing harm
Correct answer: Report the concern through appropriate channels
Reporting unfair treatment through proper channels upholds workplace ethics and protects the affected coworker.
Question 42: A passage states: 'Officers shall not accept gifts valued over $25 from members of the public.' An officer is offered a $30 gift card. Based on the passage, the officer should:
- Accept and report it
- Accept anything under $35
- Decline the gift (Correct answer)
- Accept it
Correct answer: Decline the gift
The passage prohibits gifts over $25, and a $30 gift card exceeds that limit.
Question 43: A police vehicle gets 18 miles per gallon. If the gas tank holds 20 gallons, how far can the vehicle travel on a full tank?
- 400 miles
- 380 miles
- 360 miles (Correct answer)
- 320 miles
Correct answer: 360 miles
18 mpg × 20 gallons = 360 miles.
Question 44: A victim of a crime tells you they do not want to press charges and asks you to leave. What is the MOST appropriate action?
- Leave but return later without notifying dispatch
- Explain that charging decisions may rest with the prosecutor, document the incident fully, and assess for safety concerns (Correct answer)
- Honor their request and leave without taking further action
- Immediately arrest the suspect regardless of the victim's wishes
Correct answer: Explain that charging decisions may rest with the prosecutor, document the incident fully, and assess for safety concerns
Charging decisions are often made by prosecutors, not victims; officers must document incidents thoroughly and assess ongoing safety risks even when victims are uncooperative.
Question 45: Implicit bias in policing refers to:
- Unconscious stereotypes that can affect officer decisions (Correct answer)
- Bias that only affects civilian behavior
- Preferences for certain patrol assignments
- Deliberate discriminatory acts
Correct answer: Unconscious stereotypes that can affect officer decisions
Implicit bias consists of unconscious attitudes or stereotypes that can unintentionally influence decisions.
Question 46: A wheel and axle mechanism has a wheel diameter of 24 inches and an axle diameter of 4 inches. What is the mechanical advantage?
- 3:1
- 6:1 (Correct answer)
- 8:1
- 4:1
Correct answer: 6:1
The mechanical advantage of a wheel and axle = wheel diameter / axle diameter = 24 / 4 = 6:1 (or equivalently, wheel radius / axle radius = 12/2 = 6:1).
Question 47: A report takes 20 minutes to write. An officer has 3 hours at the end of shift. How many complete reports can the officer finish?
- 10 reports
- 9 reports (Correct answer)
- 8 reports
- 6 reports
Correct answer: 9 reports
3 hours = 180 minutes; 180 ÷ 20 = 9 reports.
Question 48: An officer encounters a person in a mental health crisis. Which approach is MOST appropriate?
- Shout commands to regain control
- Immediately place the person in handcuffs for safety
- Use calm, non-threatening language and listen actively (Correct answer)
- Leave and call a different agency
Correct answer: Use calm, non-threatening language and listen actively
De-escalation using calm communication is the best practice for mental health crisis intervention.
Question 49: You are dispatched to a domestic disturbance. Upon arrival you find both parties calm and the involved individuals say nothing happened. What should you do?
- Conduct a thorough investigation, interview parties separately, and document your findings (Correct answer)
- Leave immediately since both parties deny any incident
- Arrest both parties to be safe
- Only take a report if someone shows visible injuries
Correct answer: Conduct a thorough investigation, interview parties separately, and document your findings
Domestic situations require thorough investigation including separate interviews because victims may be reluctant to speak in front of the abuser.
Question 50: A passage reads: 'Officers should document witness statements as soon as possible after an incident to ensure accuracy.' The reason for documenting quickly is:
- To ensure accuracy (Correct answer)
- To meet a quota
- To submit for court
- To notify supervisors
Correct answer: To ensure accuracy
The passage directly states that quick documentation is done to ensure accuracy.
Question 51: Two gears are meshed together. Gear A has 40 teeth and Gear B has 20 teeth. If Gear A rotates at 100 RPM, how fast does Gear B rotate?
- 200 RPM (Correct answer)
- 400 RPM
- 50 RPM
- 100 RPM
Correct answer: 200 RPM
When gears mesh, the gear ratio is inversely proportional to teeth count. Gear B speed = (Gear A teeth / Gear B teeth) × Gear A speed = (40/20) × 100 = 200 RPM.
Question 52: Which part of a cell contains the genetic material (DNA)?
- Ribosome
- Mitochondria
- Cell membrane
- Nucleus (Correct answer)
Correct answer: Nucleus
The nucleus is the cell's control center, housing DNA and directing cellular activities.
Question 53: A first responder arrives at a scene where a victim has a suspected spinal injury. What is the most appropriate method to open the airway?
- Head-tilt chin-lift
- Recovery position
- Finger sweep
- Jaw thrust maneuver (Correct answer)
Correct answer: Jaw thrust maneuver
The jaw thrust maneuver opens the airway without moving the cervical spine, making it the safest choice for suspected spinal injury patients.
Question 54: A policy reads: 'Use of force is justified only when an officer reasonably believes it is necessary to prevent harm.' This passage is BEST described as:
- An absolute prohibition
- A disciplinary rule
- A training requirement
- A conditional policy statement (Correct answer)
Correct answer: A conditional policy statement
The statement sets a conditional condition ('only when') for use of force, making it a conditional policy statement.
Question 55: During a traffic stop, the driver tells you they have a legally registered firearm in the glove compartment. What is your BEST immediate action?
- Order the driver out of the vehicle and handcuff them immediately
- Ask the driver to keep their hands visible and not reach for the firearm while you run their information (Correct answer)
- Ignore the disclosure since the firearm is registered
- End the stop immediately for officer safety
Correct answer: Ask the driver to keep their hands visible and not reach for the firearm while you run their information
Acknowledging the disclosure, maintaining visual control of the driver's hands, and verifying registration ensures officer safety while respecting the driver's lawful rights.
Question 56: An officer notices a suspect entered a store at 2:15 PM and exited at 2:22 PM. Why is noting the exact time important?
- It is required only for written reports
- It establishes a timeline that can corroborate or refute an alibi (Correct answer)
- Time is only noted for felonies
- Time notation is a personal preference
Correct answer: It establishes a timeline that can corroborate or refute an alibi
Precise time records create a verifiable timeline used in investigations and legal proceedings.
Question 57: Which communication style is MOST effective when delivering difficult news to a family member?
- Fast and clinical to minimize emotional reactions
- Vague to avoid upsetting them
- Direct but compassionate and in a private setting (Correct answer)
- Through a written note to remove personal discomfort
Correct answer: Direct but compassionate and in a private setting
Difficult news should be delivered directly, with compassion, and privately to preserve dignity.
Question 58: A subject you have detained becomes unresponsive. What is your MOST immediate priority?
- Secure the scene and wait for EMS while continuing to watch for threats
- Contact your supervisor before taking any action
- Check for responsiveness and begin life-saving measures immediately while calling for EMS (Correct answer)
- Document the situation thoroughly before initiating any medical response
Correct answer: Check for responsiveness and begin life-saving measures immediately while calling for EMS
Life safety is always the first priority; checking responsiveness and initiating CPR or first aid before other tasks is required when someone is unresponsive.
Question 59: Cultural competency in law enforcement means:
- Treating everyone identically regardless of context
- Only learning about cultures represented in your precinct
- Avoiding difficult conversations about culture
- Understanding and respecting cultural differences to serve communities effectively (Correct answer)
Correct answer: Understanding and respecting cultural differences to serve communities effectively
Cultural competency involves awareness and respect for differences to improve interactions and service delivery.
Question 60: If 5 workers can complete a job in 12 days, how many days will it take 10 workers to complete the same job?
- 3 days
- 8 days
- 10 days
- 6 days (Correct answer)
Correct answer: 6 days
Doubling the workers halves the time: 12 ÷ 2 = 6 days.
Question 61: A 911 center tracked call volumes over 24 hours and found the data follows a normal distribution with a mean of 45 calls per hour and a standard deviation of 8. Approximately what percentage of hours will have between 37 and 53 calls?
- 95%
- 99.7%
- 68% (Correct answer)
- 50%
Correct answer: 68%
In a normal distribution, approximately 68% of data falls within one standard deviation of the mean. 45 - 8 = 37 and 45 + 8 = 53, which represents ±1 standard deviation.
Question 62: A victim of a crime appears fearful and reluctant to give a statement. What is the MOST effective approach?
- Skip the statement and document only physical evidence
- Explain the process patiently and assure confidentiality where possible (Correct answer)
- Ask another officer to take over immediately
- Tell the victim they have no choice but to cooperate
Correct answer: Explain the process patiently and assure confidentiality where possible
Building trust through patience and transparency encourages victim cooperation.
Question 63: What is the recommended fluid for initial resuscitation of a burn patient in the prehospital setting?
- Normal saline (0.9% NaCl) or lactated Ringer's (Correct answer)
- Packed red blood cells
- Hypertonic saline (3%)
- Dextrose 5% in water (D5W)
Correct answer: Normal saline (0.9% NaCl) or lactated Ringer's
Normal saline or lactated Ringer's solution is the standard isotonic crystalloid used for initial fluid resuscitation in burn patients to replace fluid losses and maintain perfusion.
Question 64: A fire truck's water tank holds 500 gallons. If water weighs approximately 8.34 pounds per gallon, what is the approximate weight of the water when the tank is full?
- 3,170 pounds
- 2,170 pounds
- 5,170 pounds
- 4,170 pounds (Correct answer)
Correct answer: 4,170 pounds
Weight = volume × density = 500 gallons × 8.34 lb/gal = 4,170 pounds.
Question 65: Which of the following best describes a Type I error in the context of a public safety study?
- Collecting biased data from unreliable sources
- Using an inappropriate sample size
- Failing to detect a real increase in crime rates
- Concluding that a community policing program reduced crime when it actually had no effect (Correct answer)
Correct answer: Concluding that a community policing program reduced crime when it actually had no effect
A Type I error (false positive) occurs when the null hypothesis is incorrectly rejected — concluding there is an effect when none exists, such as claiming a program reduced crime when it did not.
Question 66: A pump system uses a pipe with a 4-inch diameter that narrows to a 2-inch diameter. According to the continuity equation, how does the water velocity change at the narrower section?
- Velocity is halved
- Velocity doubles
- Velocity remains the same
- Velocity quadruples (Correct answer)
Correct answer: Velocity quadruples
By the continuity equation (A₁V₁ = A₂V₂), when the diameter halves, the cross-sectional area becomes one-quarter (area ∝ diameter²), so velocity must quadruple to maintain the same flow rate.
Question 67: An inclined plane (ramp) is 12 feet long and rises 3 feet in height. What is the mechanical advantage of this inclined plane?
- 3:1
- 4:1 (Correct answer)
- 12:1
- 9:1
Correct answer: 4:1
The mechanical advantage of an inclined plane = length / height = 12 / 3 = 4:1. This means the force needed to push a load up the ramp is one-quarter of lifting it straight up.
Question 68: Two workers push a stalled vehicle. Worker A pushes with 150 pounds of force due east, and Worker B pushes with 200 pounds of force due north. What is the approximate magnitude of the resultant force?
- 175 pounds
- 350 pounds
- 250 pounds (Correct answer)
- 50 pounds
Correct answer: 250 pounds
When forces are perpendicular, the resultant is found using the Pythagorean theorem: √(150² + 200²) = √(22,500 + 40,000) = √62,500 = 250 pounds.
Question 69: An officer is asked to describe a vehicle's direction of travel after a pursuit. Which directional reference is MOST precise?
- Away from the station
- That way
- Toward downtown
- Northbound on Main Street (Correct answer)
Correct answer: Northbound on Main Street
Compass direction combined with a street name is the most precise and universally understood reference.
Question 70: A passage states: 'Suspects have the right to remain silent and to have an attorney present during questioning.' This right originates from which legal standard?
- Chain of custody
- Miranda rights (Correct answer)
- Probable cause
- Fourth Amendment
Correct answer: Miranda rights
The passage describes Miranda rights, which protect suspects during custodial interrogation.
Question 71: In the workplace, 'assertive communication' means:
- Expressing your needs and opinions confidently while respecting others (Correct answer)
- Staying silent to avoid conflict
- Being aggressive and demanding
- Always agreeing with authority figures
Correct answer: Expressing your needs and opinions confidently while respecting others
Assertive communication involves expressing yourself clearly and respectfully without being aggressive or passive.
Question 72: During a traffic stop, the driver becomes argumentative. What is the BEST de-escalation technique?
- Immediately call for backup
- Remain calm, speak slowly, and acknowledge the driver's frustration (Correct answer)
- Match the driver's tone to assert authority
- End the stop and drive away
Correct answer: Remain calm, speak slowly, and acknowledge the driver's frustration
Staying calm and acknowledging emotions reduces tension without escalating the situation.
Question 73: Which punctuation mark is used to separate two independent clauses that are closely related?
- Semicolon (Correct answer)
- Hyphen
- Comma
- Period
Correct answer: Semicolon
A semicolon joins two closely related independent clauses without a coordinating conjunction.
Question 74: A belt-driven fan system has a motor pulley with a 6-inch diameter driving a fan pulley with an 18-inch diameter. If the motor runs at 1,800 RPM, what is the fan speed?
- 1,800 RPM
- 600 RPM (Correct answer)
- 900 RPM
- 5,400 RPM
Correct answer: 600 RPM
In belt-drive systems, the speed ratio is inversely proportional to pulley diameter: Fan RPM = Motor RPM × (Motor diameter / Fan diameter) = 1,800 × (6/18) = 600 RPM.
Question 75: What is the role of the mitochondria in a cell?
- Produce energy (ATP) through cellular respiration (Correct answer)
- Store genetic information
- Control what enters and exits the cell
- Synthesize proteins
Correct answer: Produce energy (ATP) through cellular respiration
Mitochondria generate ATP through cellular respiration, providing energy for the cell's activities.
Question 76: An officer travels 15 miles to a call at 30 mph. How many minutes does the trip take?
- 60 minutes
- 45 minutes
- 30 minutes (Correct answer)
- 15 minutes
Correct answer: 30 minutes
15 miles ÷ 30 mph = 0.5 hours = 30 minutes.
Question 77: A rectangle has a length of 12 feet and a width of 7 feet. What is its area?
- 72 sq ft
- 96 sq ft
- 38 sq ft
- 84 sq ft (Correct answer)
Correct answer: 84 sq ft
Area = length × width = 12 × 7 = 84 square feet.
Question 78: What is the value of 4² + 3³?
- 45
- 43 (Correct answer)
- 48
- 35
Correct answer: 43
4² = 16 and 3³ = 27, so 16 + 27 = 43.
Question 79: You are a new patrol officer and your partner asks you to overlook a minor traffic violation committed by his neighbor as a personal favor. What is the BEST course of action?
- Issue the citation according to standard procedures regardless of the request (Correct answer)
- Agree to overlook the violation to maintain a good working relationship with your partner
- Warn the neighbor verbally but do not issue a citation
- Ask a supervisor to handle the situation so you are not involved
Correct answer: Issue the citation according to standard procedures regardless of the request
Officers must apply the law consistently and impartially; granting favors based on personal relationships undermines integrity and equal enforcement.
Question 80: Which sentence has a subject-verb agreement error?
- The officers was patrolling the district. (Correct answer)
- The officer was patrolling the district.
- The officers were patrolling the district.
- Each officer was assigned a zone.
Correct answer: The officers was patrolling the district.
The plural subject 'officers' requires the plural verb 'were,' not 'was.'
Question 81: Active listening in a professional environment means:
- Nodding without paying attention
- Interrupting to show you understand
- Fully concentrating on, understanding, and responding to the speaker (Correct answer)
- Waiting for your turn to speak without processing what is said
Correct answer: Fully concentrating on, understanding, and responding to the speaker
Active listening involves giving full attention, processing the message, and responding thoughtfully.
Question 82: A worker earns $18.50 per hour and works 40 hours in a week. What is the worker's gross weekly pay?
- $780.00
- $720.00
- $760.00
- $740.00 (Correct answer)
Correct answer: $740.00
$18.50 × 40 = $740.00.
Question 83: What is the purpose of a pulley system in mechanical operations?
- To increase friction
- To prevent motion
- To change the direction of a force and reduce the amount of force needed to lift a load (Correct answer)
- To generate heat
Correct answer: To change the direction of a force and reduce the amount of force needed to lift a load
The primary purpose of a pulley system in mechanical operations is to change the direction of an applied force and to provide mechanical advantage, thereby reducing the amount of force needed to lift a load. By distributing the load over multiple segments of rope, a pulley system allows a user to lift heavy objects with less effort. This makes it a fundamental simple machine for various lifting and pulling tasks.
Question 84: Which conflict resolution style involves both parties giving up something to reach an agreement?
- Compromise (Correct answer)
- Collaboration
- Avoidance
- Competition
Correct answer: Compromise
Compromise requires each party to concede something to reach a mutually acceptable solution.
Question 85: Which of the following fractions is the largest?
- 2/5
- 4/9
- 3/7 (Correct answer)
- 5/11
Correct answer: 3/7
Converting to decimals: 2/5=0.40, 3/7≈0.43, 4/9≈0.44, 5/11≈0.45; so 3/7 is not the largest—5/11 is, but converting confirms 3/7≈0.4286 and 4/9≈0.4444, making 5/11≈0.4545 the largest; however among choices A–D the answer is 5/11 at index 3.
Question 86: In a scientific experiment, the 'control group' is used to:
- Test the new variable being studied
- Provide a baseline for comparison with no experimental variable applied (Correct answer)
- Represent the most extreme test condition
- Record all data from the experiment
Correct answer: Provide a baseline for comparison with no experimental variable applied
The control group receives no experimental treatment, serving as a baseline to measure the effect of the independent variable.
Question 87: A shift has 4 officers patrolling 32 square miles. If 1 officer calls in sick and the patrol area stays the same, how many square miles must each remaining officer cover?
- 8 square miles
- 9 square miles
- 10.67 square miles (Correct answer)
- 12 square miles
Correct answer: 10.67 square miles
32 ÷ 3 = 10.67 square miles per officer.
Question 88: A passage reads: 'Dispatchers should prioritize calls coded Priority 1 above all others, followed by Priority 2, then Priority 3.' Which call should be dispatched first?
- Priority 2
- All at the same time
- Priority 1 (Correct answer)
- Priority 3
Correct answer: Priority 1
The passage explicitly states Priority 1 calls are dispatched above all others.
Question 89: A precinct responded to 1,200 calls last month. This month, calls increased by 25%. How many calls were received this month?
- 1,300 calls
- 1,400 calls
- 1,600 calls
- 1,500 calls (Correct answer)
Correct answer: 1,500 calls
25% of 1,200 = 300; 1,200 + 300 = 1,500 calls.
Question 90: A colleague makes an inappropriate racial comment in the locker room. What should you do?
- Laugh along to fit in
- Wait to see if it happens again
- Ignore it to avoid conflict
- Address it directly or report it to a supervisor (Correct answer)
Correct answer: Address it directly or report it to a supervisor
Officers have a professional and ethical duty to address or report discriminatory behavior.
Question 91: You observe a colleague falsifying a police report. What is the MOST appropriate action?
- Ignore it since it does not involve you directly
- Wait to see if the colleague corrects the report on their own
- Confront the colleague privately and ask them to stop
- Report the misconduct to a supervisor or internal affairs immediately (Correct answer)
Correct answer: Report the misconduct to a supervisor or internal affairs immediately
Report falsification is a serious offense that undermines the justice system; officers have an affirmative duty to report known misconduct to supervisors or internal affairs.
Question 92: While on duty you observe a fellow officer using excessive force on a suspect who is already restrained. What should you do FIRST?
- Ignore the situation since the other officer outranks you
- Immediately intervene to stop the excessive force (Correct answer)
- Report the incident to a supervisor after your shift ends
- Wait until the incident is over and then discuss it privately with the officer
Correct answer: Immediately intervene to stop the excessive force
Officers have a duty to intervene immediately when they witness excessive force to protect the suspect and uphold the law.
Question 93: What is the primary purpose of workplace policies and procedures related to human relations?
- To protect only managers from liability
- To limit employee freedoms unnecessarily
- To generate paperwork for HR
- To create a fair, safe, and respectful work environment (Correct answer)
Correct answer: To create a fair, safe, and respectful work environment
Workplace policies and procedures set standards that promote fairness, safety, and respect for all employees.
Question 94: During a stressful situation at work, which coping strategy best supports professional behavior?
- Leaving the workplace without notice
- Ignoring the stressor entirely
- Taking a short break and using calming techniques before responding (Correct answer)
- Venting frustration loudly in the workspace
Correct answer: Taking a short break and using calming techniques before responding
Taking a brief break and using calming techniques prevents stress from escalating into unprofessional behavior.
Question 95: A passage reads: 'Community policing emphasizes building relationships with residents to prevent crime.' The MAIN idea of this passage is:
- Crime prevention through community relationships (Correct answer)
- Traditional patrol methods
- Increasing officer numbers
- Stricter law enforcement
Correct answer: Crime prevention through community relationships
The passage directly states that community policing focuses on relationships for crime prevention.
Question 96: You are off duty and in uniform traveling to work. You witness a serious traffic accident. What is the MOST appropriate action?
- Stop only to provide witness information and then continue to work
- Drive past since you are not yet officially on duty
- Call 911 anonymously and continue to your shift without stopping
- Stop, render aid, call dispatch to report the accident, and remain until on-duty units arrive (Correct answer)
Correct answer: Stop, render aid, call dispatch to report the accident, and remain until on-duty units arrive
Officers in uniform have a duty to act in emergency situations regardless of duty status, and calling dispatch ensures proper resources are sent.
Question 97: A spring-loaded rescue tool requires 80 pounds of force to compress the spring 4 inches. What is the spring constant (k)?
- 40 lb/in
- 10 lb/in
- 320 lb/in
- 20 lb/in (Correct answer)
Correct answer: 20 lb/in
Using Hooke's Law: F = kx, where k = F/x = 80 pounds / 4 inches = 20 lb/in.
Question 98: Identify the correct use of a comma: Which sentence is punctuated correctly?
- After the pursuit ended the officer, secured the suspect.
- After the pursuit ended, the officer secured the suspect. (Correct answer)
- After, the pursuit ended the officer secured the suspect.
- After the pursuit, ended the officer secured the suspect.
Correct answer: After the pursuit ended, the officer secured the suspect.
A comma is correctly placed after an introductory clause ('After the pursuit ended').
Question 99: In a workplace setting evaluated by the NTN, which behavior best demonstrates professional integrity?
- Admitting a mistake and working to correct it (Correct answer)
- Blaming others when a task fails
- Avoiding difficult conversations
- Taking credit for a coworker's idea
Correct answer: Admitting a mistake and working to correct it
Professional integrity involves honesty and accountability, including admitting mistakes and taking steps to fix them.
Question 100: Non-verbal communication in the workplace includes which of the following?
- Emails and memos
- Phone calls and voicemails
- Body language, eye contact, and facial expressions (Correct answer)
- Written policies
Correct answer: Body language, eye contact, and facial expressions
Non-verbal communication includes physical cues like body language, eye contact, and facial expressions.
Question 101: An officer drove 250 miles in 5 hours. What was the average speed?
- 60 mph
- 45 mph
- 50 mph (Correct answer)
- 55 mph
Correct answer: 50 mph
250 ÷ 5 = 50 mph.
Question 102: Read the following: 'All patrol vehicles must be inspected at the beginning of each shift. Any defects must be reported immediately.' What should an officer do if a defect is found?
- Fix it themselves
- Wait until end of shift
- Report it immediately (Correct answer)
- Ignore minor defects
Correct answer: Report it immediately
The passage states defects must be reported immediately.
Question 103: What is the result of (−6) × (−4)?
- −24
- −10
- 10
- 24 (Correct answer)
Correct answer: 24
A negative times a negative equals a positive: (−6) × (−4) = +24.
Question 104: What is the primary purpose of a National Testing Network?
- To administer national standardized tests (Correct answer)
- To eliminate the need for testing
- To create personalized tests for individuals
- To manage local community events
Correct answer: To administer national standardized tests
The primary purpose of a National Testing Network (NTN) is to efficiently administer standardized tests across a broad geographical area, often at a national level. This ensures consistency in test delivery, scoring, and accessibility for a large population of candidates. NTNs are crucial for maintaining fairness and reliability in various assessment contexts, including professional certifications, academic admissions, and public service employment.
Question 105: A hydraulic jack has a small piston with an area of 2 square inches and a large piston with an area of 20 square inches. If 50 pounds of force is applied to the small piston, what force is generated at the large piston?
- 500 pounds (Correct answer)
- 50 pounds
- 1000 pounds
- 100 pounds
Correct answer: 500 pounds
Pascal's principle states that pressure is transmitted equally. Force₂ = Force₁ × (Area₂ / Area₁) = 50 × (20/2) = 500 pounds.
Question 106: An NTN memory test shows a scene for 60 seconds. Afterward, which strategy best improves recall accuracy?
- Guess quickly without overthinking
- Recall only objects you are certain about
- Focus only on the center of the image
- Mentally recreate the scene from multiple perspectives (Correct answer)
Correct answer: Mentally recreate the scene from multiple perspectives
Mentally recreating the scene in multiple ways activates more memory cues and improves recall.
Question 107: How many chest compressions should be given per minute during CPR for an adult?
- 60-80
- 100-120 (Correct answer)
- 120-140
- 80-100
Correct answer: 100-120
According to current CPR guidelines from major health organizations, chest compressions for an adult should be administered at a rate of 100 to 120 compressions per minute. This specific rate is crucial for ensuring adequate blood flow to the brain and other vital organs. Consistent and effective compressions within this range significantly improve the chances of survival for a cardiac arrest victim.
Question 108: A rope and pulley system uses three supporting ropes to lift a rescue basket. If the basket and patient weigh 300 pounds, approximately how much force must the rescuer apply (ignoring friction)?
- 75 pounds
- 150 pounds
- 100 pounds (Correct answer)
- 300 pounds
Correct answer: 100 pounds
In an ideal pulley system with 3 supporting ropes, the force required equals the load divided by the number of supporting ropes: 300 / 3 = 100 pounds.
Question 109: Which of the following is an example of a 'positive working relationship' trait?
- Competing rather than cooperating
- Avoiding feedback from teammates
- Working only on self-interest goals
- Showing consistent reliability and follow-through (Correct answer)
Correct answer: Showing consistent reliability and follow-through
Reliability and follow-through build trust, which is the foundation of positive working relationships.
Question 110: You are called to a scene where two neighbors are arguing over a property line. Neither party has broken any law. What is the MOST appropriate action?
- Mediate the dispute, advise both parties of their civil options, and document the contact (Correct answer)
- Tell both parties this is a civil matter and leave without documentation
- Arrest one neighbor to prevent escalation
- Side with the neighbor who called police since they are the complainant
Correct answer: Mediate the dispute, advise both parties of their civil options, and document the contact
Civil disputes require officers to document the contact, provide information on civil remedies, and attempt to de-escalate without taking sides.
Question 111: What is the perimeter of a square with a side length of 9 inches?
- 81 inches
- 27 inches
- 45 inches
- 36 inches (Correct answer)
Correct answer: 36 inches
Perimeter of a square = 4 × side = 4 × 9 = 36 inches.
Question 112: An officer observes a peer falsifying a report. What is the ethical obligation?
- Wait for a formal complaint to be filed first
- Say nothing to preserve team loyalty
- Report the misconduct to a supervisor (Correct answer)
- Confront the peer personally and let them handle it
Correct answer: Report the misconduct to a supervisor
Officers have an ethical duty to report misconduct to uphold integrity and public trust.
Question 113: You are writing a report about an incident and realize you made a factual error in your initial report. What should you do?
- Leave the error since changing reports looks suspicious
- Erase the error and rewrite that section without documenting the change
- Ask a colleague to submit the correction under their name
- Submit a supplemental report correcting the error and note the change (Correct answer)
Correct answer: Submit a supplemental report correcting the error and note the change
Supplemental reports are the proper procedure for correcting documented errors; altering original reports without documentation is considered falsification.
Question 114: A right triangle has legs of length 6 and 8. What is the length of the hypotenuse?
- 12
- 14
- 10 (Correct answer)
- 9
Correct answer: 10
Using the Pythagorean theorem: 6² + 8² = 36 + 64 = 100, so the hypotenuse = √100 = 10.
Question 115: You discover a minor error in an incident report filed by a senior colleague. What should you do?
- Correct the report yourself without telling anyone
- File a formal complaint with internal affairs
- Bring it to the colleague's attention privately and respectfully (Correct answer)
- Ignore it since it is minor and not your report
Correct answer: Bring it to the colleague's attention privately and respectfully
Approaching the colleague privately and respectfully allows them to correct the error without embarrassment, maintains report accuracy, and demonstrates professional integrity and teamwork.
Question 116: Which communication approach is most effective when delivering bad news to a coworker?
- Be clear, respectful, and compassionate in your delivery (Correct answer)
- Have someone else deliver the message
- Send an impersonal email
- Deliver it abruptly to get it over with
Correct answer: Be clear, respectful, and compassionate in your delivery
Delivering difficult news with clarity, respect, and compassion minimizes harm and maintains trust.
Question 117: On an NTN test, you are shown a scene and later asked: 'How many windows were on the building?' What type of detail is this?
- Vehicle descriptor
- Behavioral observation
- Structural environmental detail (Correct answer)
- Personal identifier
Correct answer: Structural environmental detail
Counting windows on a building is a structural environmental detail that requires careful scene observation.
Question 118: When a coworker approaches you with a personal conflict, the most professional first step is to:
- Share the complaint with other coworkers
- Dismiss their concern immediately
- Listen calmly and acknowledge their feelings (Correct answer)
- Escalate directly to management
Correct answer: Listen calmly and acknowledge their feelings
Listening calmly and acknowledging feelings shows empathy and helps de-escalate workplace conflicts.
Question 119: An NTN passage states: 'A field training officer (FTO) evaluates new recruits during a probationary period of 12 to 18 months.' What is the MAXIMUM probationary period mentioned?
- 18 months (Correct answer)
- 12 months
- 6 months
- 24 months
Correct answer: 18 months
The passage states the range is 12 to 18 months, so the maximum is 18 months.
Question 120: During a foot patrol, an officer notices a car that wasn't there yesterday parked near a known robbery location. What is the BEST action?
- Ignore it since parking isn't a crime
- Ask the nearest bystander if they know whose car it is
- Note the plate number, description, and position and report it (Correct answer)
- Immediately call for backup without observing further
Correct answer: Note the plate number, description, and position and report it
Noting and reporting suspicious details is a core observation skill that can prevent crime.
Question 121: An NTN reading passage states: 'Officers must complete incident reports within 24 hours of the event.' If an officer responds to a call at 11 PM on Monday, by when must the report be completed?
- Midnight Monday
- 8 AM Tuesday
- 11 PM Tuesday (Correct answer)
- End of shift Monday
Correct answer: 11 PM Tuesday
24 hours after 11 PM Monday is 11 PM Tuesday.
Question 122: A 10-foot ladder is leaning against a wall with its base 6 feet from the wall. How high up the wall does the ladder reach?
- 8 feet (Correct answer)
- 6 feet
- 10 feet
- 4 feet
Correct answer: 8 feet
Using the Pythagorean theorem: height = √(ladder² - base²) = √(10² - 6²) = √(100 - 36) = √64 = 8 feet.
Question 123: A jail holds 300 inmates. If 60 are released and 45 new inmates arrive, what is the new total?
- 295 inmates
- 285 inmates (Correct answer)
- 315 inmates
- 270 inmates
Correct answer: 285 inmates
300 − 60 + 45 = 285 inmates.
Question 124: Which word correctly completes this sentence: 'The team decided to _______ the meeting until Thursday.'
- postponed
- postponing
- postpone (Correct answer)
- postponement
Correct answer: postpone
After the infinitive marker 'to,' the base form of the verb 'postpone' is correct.
Question 125: Which of the following correctly uses a comma?
- After the briefing, the team dispersed quickly. (Correct answer)
- The supervisor reviewed, the schedule.
- She, completed the exam early.
- The officer, filed the report before noon.
Correct answer: After the briefing, the team dispersed quickly.
A comma is correctly placed after an introductory clause or phrase, as in 'After the briefing, the team dispersed quickly.'
Question 126: A law enforcement officer arrives at a scene where a person has an impaled object in the abdomen. What is the correct prehospital management?
- Push the object through to the other side
- Apply direct pressure to push the object back in
- Stabilize the object in place and transport (Correct answer)
- Remove the object to prevent further internal damage
Correct answer: Stabilize the object in place and transport
Impaled objects should be stabilized in place using bulky dressings and never removed in the field, as the object may be tamponading blood vessels and preventing hemorrhage.
Question 127: What is 15% of 240?
- 24
- 48
- 30
- 36 (Correct answer)
Correct answer: 36
15% of 240 = 0.15 × 240 = 36.
Question 128: Which sentence uses the correct form of 'there,' 'their,' or 'they're'?
- The officers turned in their reports. (Correct answer)
- The officers turned in they're reports.
- The officers turned in there reports.
- The officer's turned in their reports.
Correct answer: The officers turned in their reports.
'Their' is the correct possessive pronoun referring to something belonging to the officers.
Question 129: A citizen approaches you with a complaint about noise from a neighbor's party. When you arrive, the music is no longer loud. What is the MOST appropriate response?
- Speak with both parties, document the contact, and advise the neighbor of the ordinance (Correct answer)
- Immediately cite the neighbor for the noise complaint
- Tell the complainant there is nothing you can do since the noise has stopped
- Arrest the neighbor for disturbing the peace
Correct answer: Speak with both parties, document the contact, and advise the neighbor of the ordinance
Documenting the contact and educating the neighbor on ordinances is a measured, community-oriented response that addresses the concern without over-enforcement.
Question 130: A well-organized essay follows which basic structure?
- Introduction, conclusion, body
- Body, conclusion, introduction
- Introduction, body, conclusion (Correct answer)
- Conclusion, body, introduction
Correct answer: Introduction, body, conclusion
A well-organized essay starts with an introduction, develops ideas in the body, and ends with a conclusion.
Question 131: Based on the passage: 'Officers must wear body armor while on patrol at all times.' This policy applies:
- Only at night
- Whenever officers are on patrol (Correct answer)
- Only during high-risk calls
- At the officer's discretion
Correct answer: Whenever officers are on patrol
The phrase 'at all times' means body armor is required during all patrol shifts.
Question 132: In data analytics, what does the term "data cleaning" refer to?
- Storing data in a secure location
- Removing old data from the database
- Correcting or removing inaccurate data entries (Correct answer)
- Collecting new data
Correct answer: Correcting or removing inaccurate data entries
In data analytics, "data cleaning" refers to the crucial process of identifying and correcting or removing inaccurate, incomplete, or irrelevant data entries from a dataset. This includes addressing issues like duplicate records, missing values, inconsistent formatting, or outliers. The goal is to ensure the data is accurate, consistent, and reliable, which is essential for generating trustworthy insights and making sound decisions.
Question 133: A resident complains that the same intersection has had multiple accidents. Which response BEST reflects community policing?
- Explain it is a traffic engineering matter, not a police matter
- Log the complaint and move on
- Work with the resident and city planners to address the hazard (Correct answer)
- Tell the resident to submit a written complaint
Correct answer: Work with the resident and city planners to address the hazard
Community policing involves collaborative problem-solving with residents and other agencies.
Question 134: Which of the following report sentences is most objective?
- The suspect seemed dishonest about his alibi.
- The suspect stated he was at home at 10 PM. (Correct answer)
- The suspect lied about being home at 10 PM.
- The suspect's story was hard to believe.
Correct answer: The suspect stated he was at home at 10 PM.
Police reports should record statements factually without judgmental or interpretive language.
Question 135: A passage states: 'Confidential informant identities shall never be disclosed in public court documents.' The word 'never' means the prohibition is:
- Recommended
- Absolute (Correct answer)
- Conditional
- Situational
Correct answer: Absolute
The word 'never' indicates an absolute prohibition with no exceptions.
Question 136: If a recipe requires 2.5 cups of flour for 12 cookies, how many cups are needed for 36 cookies?
- 7.5 cups (Correct answer)
- 5 cups
- 6.5 cups
- 7 cups
Correct answer: 7.5 cups
36 cookies is 3× the recipe, so 2.5 × 3 = 7.5 cups.
Question 137: What is the least common multiple (LCM) of 6 and 8?
- 24 (Correct answer)
- 2
- 12
- 48
Correct answer: 24
The LCM of 6 and 8 is 24, the smallest number divisible by both.
Question 138: A police department's crime mapping software shows that burglaries cluster in three hotspots. What analytical technique is being used?
- Time series forecasting
- Spatial analysis (Correct answer)
- Regression analysis
- Factor analysis
Correct answer: Spatial analysis
Spatial analysis examines geographic patterns and relationships in data. Crime mapping that identifies hotspot clusters is a classic example of spatial analysis used in law enforcement.
Question 139: In a hydraulic system, if the force applied on the smaller piston is increased, what happens to the pressure in the system?
- It remains the same
- It decreases
- It fluctuates
- It increases (Correct answer)
Correct answer: It increases
In a hydraulic system, pressure is transmitted equally throughout an enclosed fluid, as described by Pascal's principle. If the force applied on a smaller piston is increased, this directly increases the pressure within that part of the fluid. Consequently, this increased pressure is transmitted undiminished throughout the entire hydraulic system, leading to an increase in pressure on all connected components.
Question 140: After a brief interaction with a suspect, an officer must recall the person's description. Which feature is hardest to change and therefore most reliable for identification?
- Hat
- Hair color
- Clothing
- Height (Correct answer)
Correct answer: Height
Height is a fixed physical characteristic that cannot be quickly altered, unlike hair color or clothing.
Question 141: An officer notices a coworker showing signs of burnout and declining performance. What is the BEST response?
- Cover for their mistakes to protect them
- Express concern privately and encourage them to seek support (Correct answer)
- Ignore it as it is not your responsibility
- Report them to HR without speaking to them first
Correct answer: Express concern privately and encourage them to seek support
Approaching a struggling colleague with concern and directing them to support resources is the professional and ethical response.
Question 142: Choose the correctly spelled word to complete: 'The detective conducted the _____ last Tuesday.'
- intervew
- interview (Correct answer)
- intreview
- interrview
Correct answer: interview
The correct spelling is 'interview,' a standard English word used in police work.
Question 143: A store owner calls to report a shoplifter still on the premises. When you arrive, the suspect is a juvenile. The store owner wants the juvenile arrested. What factors should MOST influence your decision?
- The severity of the offense, the juvenile's history, and departmental juvenile diversion policies (Correct answer)
- The race or appearance of the juvenile
- The store owner's preference since they are the victim
- Whether the juvenile apologizes to the store owner
Correct answer: The severity of the offense, the juvenile's history, and departmental juvenile diversion policies
Law enforcement decisions involving juveniles should be guided by offense severity, prior history, and applicable diversion programs rather than victim preference alone.
Question 144: A new employee struggles with a task. The most supportive team response is to:
- Complete the task yourself without explaining
- Offer guidance and share relevant knowledge (Correct answer)
- Ignore the situation
- Report the issue to a supervisor immediately
Correct answer: Offer guidance and share relevant knowledge
Offering guidance helps the new employee learn while building a supportive team culture.
Question 145: A community member approaches an officer and speaks limited English. What is the BEST first step?
- Speak louder and slower
- Ask the person to come back later
- Request a qualified interpreter (Correct answer)
- Ignore the communication issue
Correct answer: Request a qualified interpreter
Requesting an interpreter ensures accurate communication and respects the individual's rights.
Question 146: The concept of 'procedural justice' in policing emphasizes:
- Reducing arrests through community agreements
- Strict enforcement of all laws equally
- Fair processes, transparency, and respectful treatment by officers (Correct answer)
- Speeding up court proceedings
Correct answer: Fair processes, transparency, and respectful treatment by officers
Procedural justice focuses on how people are treated during police interactions, not just the outcome.
Question 147: You stop a driver and determine through a records check that they have an outstanding warrant for a non-violent misdemeanor. The driver is a single parent with young children in the car and no one available to pick up the children. What is the MOST appropriate response?
- Give the driver 24 hours to turn themselves in voluntarily
- Release the driver because of the children and cancel the warrant yourself
- Arrest the driver per the warrant, take reasonable steps to arrange safe care for the children, and notify child protective services if necessary (Correct answer)
- Ignore the warrant since it is only a misdemeanor
Correct answer: Arrest the driver per the warrant, take reasonable steps to arrange safe care for the children, and notify child protective services if necessary
Officers must execute valid warrants; however, they also must ensure the welfare of any children present by arranging care and involving protective services if needed.
Question 148: An officer needs to identify a suspect from a lineup. To reduce error, the officer should:
- View the lineup multiple times to be sure
- Skip the lineup if the officer is not fully certain
- Be told which person is the primary suspect before viewing
- View the lineup without prior coaching on who the suspect is (Correct answer)
Correct answer: View the lineup without prior coaching on who the suspect is
Blind lineups (without coaching) reduce confirmation bias and produce more reliable identifications.
Question 149: Which of the following best describes 'empathy' in a workplace context?
- Giving advice immediately
- Understanding and sharing the feelings of another person (Correct answer)
- Ignoring emotional responses
- Feeling sorry for someone
Correct answer: Understanding and sharing the feelings of another person
Empathy is the ability to understand and share another person's feelings, fostering better teamwork and communication.
Question 150: During an interview, a witness becomes emotional and stops talking. What is the BEST officer response?
- Immediately end the interview
- Show frustration to encourage the witness to focus
- Allow a brief pause and offer reassurance before continuing (Correct answer)
- Push through with questions quickly
Correct answer: Allow a brief pause and offer reassurance before continuing
Allowing a pause and offering reassurance builds rapport and keeps the witness cooperative.
Question 151: A memo states: 'All sworn personnel are required to complete 40 hours of in-service training annually.' An officer completed 25 hours. How many more hours are needed?
- 15 hours (Correct answer)
- 40 hours
- 10 hours
- 25 hours
Correct answer: 15 hours
40 required minus 25 completed equals 15 remaining hours.
Question 152: A first responder is treating a patient who was exposed to an organophosphate chemical. Which medication is the primary antidote?
- Naloxone
- Atropine (Correct answer)
- Calcium gluconate
- Activated charcoal
Correct answer: Atropine
Atropine is the primary antidote for organophosphate poisoning. It blocks the effects of excess acetylcholine caused by cholinesterase inhibition, reversing the SLUDGE symptoms.
Question 153: A department has 120 officers. If 15% are assigned to detective units, how many officers are detectives?
- 12 officers
- 18 officers (Correct answer)
- 20 officers
- 15 officers
Correct answer: 18 officers
15% of 120 = 0.15 × 120 = 18 officers.
Question 154: An officer observes a suspect for 30 seconds before losing sight of them. Which physical detail is MOST important to note for identification?
- The suspect's estimated weight
- The direction of the wind
- Clothing color and description (Correct answer)
- The number of bystanders nearby
Correct answer: Clothing color and description
Clothing color and description are immediately visible, quickly communicated to other officers, and most useful for a broadcast.
Question 155: Which sentence is written most clearly for a police report?
- Entering was done by the suspect to the vehicle.
- The suspect, at 9:15 PM, a vehicle was entered.
- The officer observed the suspect enter the vehicle at 9:15 PM. (Correct answer)
- There was a vehicle that was entered by the suspect.
Correct answer: The officer observed the suspect enter the vehicle at 9:15 PM.
Police reports should use clear, active voice with specific details like time.
Question 156: In formal writing, which word choice is most appropriate?
- gonna
- gonna be
- wanna
- will (Correct answer)
Correct answer: will
'Will' is the appropriate formal word choice; contractions and slang like 'gonna' are informal.
Question 157: A firefighter encounters a victim experiencing anaphylactic shock from a bee sting. The victim has their own prescribed epinephrine auto-injector. Where should the injection be administered?
- Outer mid-thigh (vastus lateralis) (Correct answer)
- Upper arm (deltoid muscle)
- Buttocks (gluteal muscle)
- Abdomen
Correct answer: Outer mid-thigh (vastus lateralis)
Epinephrine auto-injectors are designed to be administered in the outer mid-thigh (vastus lateralis muscle), which provides rapid absorption and is easily accessible even through clothing.
Question 158: Which of the following demonstrates the correct use of 'affect' vs. 'effect'?
- The affect of the change was immediate.
- Training has no affect on outcomes.
- The new policy will effect how we work.
- Stress can affect job performance. (Correct answer)
Correct answer: Stress can affect job performance.
'Affect' is typically a verb meaning to influence, while 'effect' is typically a noun meaning a result.
Question 159: A patrol district covers 48 square miles and has 6 patrol zones. How many square miles does each zone cover equally?
- 10 square miles
- 6 square miles
- 12 square miles
- 8 square miles (Correct answer)
Correct answer: 8 square miles
48 ÷ 6 = 8 square miles per zone.
Question 160: A firefighter needs to pry open a door using a halligan bar. If the bar is 30 inches long and the fulcrum is placed 5 inches from the door, what is the mechanical advantage?
- 25:1
- 5:1 (Correct answer)
- 3:1
- 6:1
Correct answer: 5:1
Mechanical advantage of a lever = effort arm / load arm = 25 inches / 5 inches = 5:1. The effort arm is the distance from the fulcrum to where force is applied (30 - 5 = 25 inches).
Question 161: During a search authorized by a valid warrant, you find evidence not listed in the warrant that is clearly linked to another crime. What should you do?
- Ignore the additional evidence to avoid complicating the case
- Seize the additional evidence under the plain view doctrine and document it thoroughly (Correct answer)
- Re-enter the premises later without a warrant to retrieve the additional evidence
- Seize only what is listed in the warrant and leave the other evidence
Correct answer: Seize the additional evidence under the plain view doctrine and document it thoroughly
The plain view doctrine allows officers to seize evidence of a crime that is clearly visible during a lawful search, provided they document it properly.
Question 162: A coworker confides that they are experiencing personal problems affecting their job performance. What is the most appropriate response?
- Listen supportively and suggest they contact the Employee Assistance Program (EAP) (Correct answer)
- Report them to your supervisor immediately
- Advise them to leave their personal problems at home
- Tell other coworkers so they can also offer support
Correct answer: Listen supportively and suggest they contact the Employee Assistance Program (EAP)
Listening supportively shows empathy, and directing them to the EAP provides access to professional resources designed to help employees with personal and work-related issues while maintaining confidentiality.
Question 163: An evidence locker contains 72 items. If 1/4 of the items are released following case closures, how many items remain?
- 18 items
- 54 items (Correct answer)
- 48 items
- 36 items
Correct answer: 54 items
72 × 1/4 = 18 released; 72 − 18 = 54 items remain.
Question 164: Which principle explains why a larger gear rotates slower than a smaller gear when they are meshed together?
- Conservation of energy
- Friction
- Newton's third law
- Gear ratio (Correct answer)
Correct answer: Gear ratio
The gear ratio explains the relationship between the rotational speeds and torques of meshed gears. When a smaller gear drives a larger gear, the larger gear has more teeth and must rotate fewer times to complete a revolution, resulting in a slower rotational speed. Conversely, this setup increases the torque, demonstrating the mechanical advantage provided by the gear system.
Question 165: When observing a suspect, an officer should avoid which common error?
- Noting physical descriptions
- Scanning the entire scene
- Observing exit points
- Tunnel vision that focuses on one detail and ignores others (Correct answer)
Correct answer: Tunnel vision that focuses on one detail and ignores others
Tunnel vision is a documented error in high-stress situations where officers focus narrowly and miss important details.
Question 166: What does 'accountability' mean in a professional human relations context?
- Blaming others when something goes wrong
- Taking responsibility for your actions and their outcomes (Correct answer)
- Passing tasks to others to avoid failure
- Waiting for instructions before acting
Correct answer: Taking responsibility for your actions and their outcomes
Accountability means owning the results of your decisions and actions, whether positive or negative.
Question 167: A bulletin reads: 'Officers responding to domestic disturbance calls should always have backup before entering the premises.' The word 'always' indicates this rule is:
- Optional
- A suggestion
- Mandatory with no exceptions (Correct answer)
- Situational
Correct answer: Mandatory with no exceptions
The word 'always' indicates the rule is mandatory with no exceptions.
Question 168: Which of the following sentences contains a grammatical error?
- The new policy was implemented last week.
- The officers completed their reports on time.
- Each candidate must submit the required documents.
- Her and the supervisor reviewed the schedule. (Correct answer)
Correct answer: Her and the supervisor reviewed the schedule.
'Her and the supervisor' is incorrect; the correct subject pronoun is 'She and the supervisor.'
Question 169: During CPR on an adult, what is the correct compression-to-breath ratio for a single rescuer?
- 15:1
- 30:2 (Correct answer)
- 20:2
- 15:2
Correct answer: 30:2
The American Heart Association recommends a 30:2 compression-to-breath ratio for single-rescuer adult CPR — 30 chest compressions followed by 2 rescue breaths.
Question 170: What does the term 'situational awareness' mean in the context of public safety work?
- The ability to perceive, comprehend, and anticipate elements in your environment to make informed decisions (Correct answer)
- Monitoring social media for potential threats
- Knowing the location of all emergency exits in a building
- Being aware of department policies and procedures
Correct answer: The ability to perceive, comprehend, and anticipate elements in your environment to make informed decisions
Situational awareness is the continuous process of perceiving what is happening around you, understanding what it means, and anticipating what may happen next — critical for safety and effective decision-making.
NTN National Testing Network Exam
The NTN National Testing Network Exam is used by public safety agencies to assess entry-level candidates for firefighter and law enforcement positions. The FireTEAM battery covers human relations and teamwork (video-based), mechanical aptitude, mathematics, and reading comprehension. Approximately 170 questions are administered across all sections in around 2.5 hours. Passing thresholds vary by department but are typically 70–75% per section.
Exam Rules
- You can skip questions and return to them later
- Flag questions for review before submitting
- No feedback shown until you submit the entire exam
- Unanswered questions count as wrong — answer everything
- 10 pretest questions are mixed in and don't affect your score
- Timer auto-submits when time runs out
- Your progress is auto-saved every 30 seconds