NFPA Certified Fire Inspector I (CFI-I) Exam — Questions and Answers

Question 1: Under NFPA 72, which type of detector is best suited for detecting slow, smoldering fires with little visible smoke?

Photoelectric smoke detector (Correct answer)
Rate-of-rise heat detector
Ionization smoke detector
Fixed-temperature heat detector

Correct answer: Photoelectric smoke detector

Photoelectric smoke detectors are most effective at detecting slow, smoldering fires that produce large combustion particles.

Question 2: Under NFPA 25, what is the required inspection frequency for internal inspection of steel dry pipe and preaction system piping?

Every 10 years
Every 3 years
Every 15 years
Every 5 years (Correct answer)

Correct answer: Every 5 years

NFPA 25 requires an internal inspection of dry pipe and preaction system piping every 5 years to check for obstructions.

Question 3: Under NFPA 25, how frequently must fire department connections (FDCs) be inspected?

Quarterly
Monthly (Correct answer)
Annually
Weekly

Correct answer: Monthly

NFPA 25 requires quarterly inspections of fire department connections to verify they are accessible, undamaged, and have proper caps.

Question 4: According to NFPA 1, what action must the responsible party take when a fire inspector identifies a code violation?

Dispute the finding in writing within 10 days
Pay the fine and continue operations
Correct the violation within the timeframe specified by the AHJ (Correct answer)
Request a variance before any corrective action

Correct answer: Correct the violation within the timeframe specified by the AHJ

NFPA 1 requires that violations identified by the AHJ be corrected within the timeframe established by the AHJ.

Question 5: What is the NEC requirement for receptacles installed in bathrooms?

They must be protected by a GFCI (Correct answer)
They must be installed at least 5 feet away from water sources
They must have a switch built-in
They must be 15-ampere rated

Correct answer: They must be protected by a GFCI

To prevent electrical shock, the NEC requires that all bathroom receptacles be protected by ground-fault circuit interrupters (GFCIs).

Question 6: According to NFPA 30, what is the maximum quantity of Class I and Class II liquids that may be stored in a single cabinet without special permits?

240 gallons
30 gallons
60 gallons (Correct answer)
120 gallons

Correct answer: 60 gallons

NFPA 30 limits flammable liquid storage cabinets to a maximum of 60 gallons of Class I and Class II liquids combined.

Question 7: According to NFPA 72, what signal must a fire alarm control unit transmit when a detector or device is removed for maintenance?

Alarm signal
Supervisory signal
No signal required
Trouble signal (Correct answer)

Correct answer: Trouble signal

NFPA 72 requires that removal of a detector or initiating device from its base generate a trouble signal at the control unit.

Question 8: What does NEC Article 210 cover?

Wiring methods
Grounding and bonding
Overcurrent protection
Branch circuits (Correct answer)

Correct answer: Branch circuits

Article 210 of the NEC focuses on the installation and specifications for branch circuits.

Question 9: According to NFPA 13, which occupancy classification applies to offices, schools, and churches?

Extra hazard
Ordinary hazard Group 2
Ordinary hazard Group 1
Light hazard (Correct answer)

Correct answer: Light hazard

Offices, schools, and churches are classified as light hazard occupancies under NFPA 13.

Question 10: According to NFPA 30, what type of electrical equipment is required in a flammable liquid storage room classified as a Division 1 hazardous location?

Weatherproof only
GFCI-protected only
Standard commercial grade
Explosion-proof or intrinsically safe (Correct answer)

Correct answer: Explosion-proof or intrinsically safe

NFPA 30 requires explosion-proof or intrinsically safe electrical equipment in Division 1 hazardous locations where flammable vapors may be present.

Question 11: According to NFPA 10, when must a fire extinguisher be removed from service regardless of its condition?

When it has been recharged more than twice
When stored outdoors for any period
When its nameplate is removed or illegible (Correct answer)
When it is more than 5 years old

Correct answer: When its nameplate is removed or illegible

NFPA 10 requires removal from service of any extinguisher whose nameplate or operating instructions are missing or illegible.

Question 12: According to the NFPA Life Safety Code, what is the minimum width requirement for egress doors in new buildings?

28 inches
36 inches
24 inches
32 inches (Correct answer)

Correct answer: 32 inches

The LSC requires that egress doors in new buildings must be at least 32 inches wide to ensure safe evacuation.

Question 13: According to NFPA 25, what is the minimum hydrostatic test pressure for a new sprinkler system installation?

150 psi or 50 psi above maximum system pressure, whichever is greater (Correct answer)
100 psi or 50 psi above maximum system pressure, whichever is greater
200 psi for all systems
Maximum working pressure plus 100 psi

Correct answer: 150 psi or 50 psi above maximum system pressure, whichever is greater

NFPA 25 requires that new systems be hydrostatically tested at 200 psi or 50 psi above the maximum system working pressure, whichever is greater, for 2 hours.

Question 14: A flammability rating of 4 in NFPA 704 describes a material that:

Ignites only after prolonged exposure to heat
Will not burn under any conditions
Requires an oxidizer to ignite
Burns readily at ambient conditions with a flash point below 73°F (22.8°C) (Correct answer)

Correct answer: Burns readily at ambient conditions with a flash point below 73°F (22.8°C)

A flammability rating of 4 indicates materials that rapidly vaporize at normal temperatures, with a flash point below 73°F and a boiling point below 100°F.

Question 15: According to NFPA 72, how frequently must a fire alarm system receiving central station monitoring be tested?

Semi-annually
Quarterly
Monthly
Annually (Correct answer)

Correct answer: Annually

NFPA 72 requires that most fire alarm system components be tested at least annually unless more frequent testing is specified.

Question 16: According to NFPA 10, what information must appear on the tag attached to a fire extinguisher after annual maintenance?

Next recharge due date only
Owner name and address
Date of service, servicing company, and technician initials or ID (Correct answer)
Manufacturer's date of manufacture only

Correct answer: Date of service, servicing company, and technician initials or ID

NFPA 10 requires the maintenance tag to show the date of service, the name of the servicing organization, and the technician's identification.

Question 17: Under NFPA 72, which initiating device is classified as a spot-type smoke detector?

Duct smoke detector
Ionization smoke detector (Correct answer)
Linear beam detector
Air sampling detector

Correct answer: Ionization smoke detector

An ionization smoke detector is a spot-type detector that responds to products of combustion in its immediate vicinity.

Question 18: In the context of the NFPA Life Safety Code, what is the purpose of an automatic sprinkler system?

To provide illumination during a fire
To alert emergency services of a fire
To assist in the manual evacuation of occupants
To suppress and control fires automatically (Correct answer)

Correct answer: To suppress and control fires automatically

Automatic sprinkler systems are designed to control and suppress fires, thereby enhancing occupant safety and minimizing property damage.

Question 19: According to the NFPA Life Safety Code, what is the minimum number of exits required for any story of a building with an occupant load exceeding 500?

Two exits
Three exits (Correct answer)
One exit
Four exits

Correct answer: Three exits

The LSC requires a minimum of three exits for any story of a building with an occupant load exceeding 500 to ensure safe egress.

Question 20: According to NFPA 72, what is the maximum allowable supervisory signal response time from the control unit to the supervising station?

30 seconds
5 minutes (Correct answer)
60 seconds
90 seconds

Correct answer: 5 minutes

NFPA 72 requires that supervisory signals be received at the supervising station within 5 minutes of occurrence.

Question 21: Under NFPA 25, what is the required testing frequency for antifreeze solution concentration in a sprinkler system?

Every 5 years
Quarterly
Annually (Correct answer)
Monthly

Correct answer: Annually

NFPA 25 requires annual testing of antifreeze solution concentration to ensure freeze protection remains adequate.

Question 22: Which NFPA 13 system type uses a pneumatic or electric detection system to open the valve before a sprinkler fuses?

Dry pipe
Preaction (Correct answer)
Wet pipe
Deluge

Correct answer: Preaction

A preaction system requires operation of a supplemental detection system to open the preaction valve before water can flow to sprinklers.

Question 23: If a material has an NFPA 704 rating of 3-4-2-OX, which single hazard category has the most severe numerical rating?

Health (3)
Special hazard (OX)
Flammability (4) (Correct answer)
Instability (2)

Correct answer: Flammability (4)

A flammability rating of 4 is the highest numerical value in this combination, indicating the material burns readily at ambient conditions.

Question 24: In the NFPA 704 system, which color section represents instability or reactivity?

White
Orange
Yellow (Correct answer)
Green

Correct answer: Yellow

The yellow section, located on the right side of the diamond, represents the instability/reactivity hazard rating.

Question 25: Under NFPA 25, when a waterflow alarm fails to activate during a quarterly test, what is the required corrective action?

Immediately restore to operation, investigate, and repair before leaving the site (Correct answer)
Document and retest annually
Notify the fire department and restore within 24 hours
Restore the system to service and schedule repair within 30 days

Correct answer: Immediately restore to operation, investigate, and repair before leaving the site

NFPA 25 requires that when a waterflow alarm fails, the system be restored, the deficiency investigated, and the issue corrected before the inspector leaves.

Question 26: Which of the following is required for all kitchen countertop outlets according to the NEC?

Surge protectors
Ground-Fault Circuit Interrupters (GFCIs) (Correct answer)
Arc-Fault Circuit Interrupters (AFCIs)
20-ampere breakers

Correct answer: Ground-Fault Circuit Interrupters (GFCIs)

GFCIs are required to prevent electrical shock in areas where water is present, such as kitchen countertops.

Question 27: Under NFPA 1, what is the required minimum width of a means of egress door in a new occupancy?

28 inches
32 inches (Correct answer)
36 inches
44 inches

Correct answer: 32 inches

NFPA 1 requires a minimum clear width of 32 inches for means of egress doors in new occupancies.

Question 28: Under NFPA 25, how frequently must wet pipe sprinkler system gauges be inspected?

Weekly
Quarterly
Annually
Monthly (Correct answer)

Correct answer: Monthly

NFPA 25 requires gauges on wet pipe sprinkler systems to be inspected monthly to verify they are in good condition and show normal pressure.

Question 29: According to NFPA 72, what information must be displayed on a fire alarm control unit annunciator?

Time of last alarm only
Suppression system type
Building owner contact information
Zone or device location of alarm, supervisory, and trouble conditions (Correct answer)

Correct answer: Zone or device location of alarm, supervisory, and trouble conditions

NFPA 72 requires that the annunciator display the location (zone or device) of alarm, supervisory, and trouble conditions.

Question 30: What is the minimum clearance required between the deflector of a sprinkler head and the top of storage under NFPA 13?

36 inches
12 inches
6 inches
18 inches (Correct answer)

Correct answer: 18 inches

NFPA 13 requires a minimum 18-inch clearance between the sprinkler deflector and the top of storage.

Question 31: Under NFPA 1, which condition would constitute a 'distinct hazard' requiring immediate correction?

A blocked means of egress during business hours (Correct answer)
An expired maintenance certificate
A missing extinguisher inspection tag
An unlabeled storage room

Correct answer: A blocked means of egress during business hours

NFPA 1 classifies a blocked or obstructed means of egress as an immediate life safety hazard requiring correction before occupancy continues.

Question 32: According to NFPA 10, how often must a portable fire extinguisher receive an annual maintenance inspection?

Every 3 years
Every year (Correct answer)
Every 5 years
Every 6 months

Correct answer: Every year

NFPA 10 requires that every portable fire extinguisher receive a thorough maintenance examination at least annually.

Question 33: What does NFPA 72 specify as the maximum travel distance to a manual pull station in an educational occupancy?

100 feet
300 feet
150 feet (Correct answer)
200 feet

Correct answer: 150 feet

NFPA 72 requires manual pull stations to be located so that travel distance from any point in the protected area does not exceed 200 feet.

Question 34: Under NFPA 30, which liquid class has a flash point at or above 100°F and below 140°F?

Class II (Correct answer)
Class IC
Class IB
Class IIIA

Correct answer: Class II

NFPA 30 classifies liquids with a flash point at or above 100°F and below 140°F as Class II combustible liquids.

Question 35: In the NEC, what does the term "ampacity" refer to?

The length of a conductor
The current-carrying capacity of a conductor (Correct answer)
The voltage rating of a conductor
The resistance of a conductor

Correct answer: The current-carrying capacity of a conductor

Ampacity is the maximum amount of electrical current a conductor or device can carry before sustaining immediate or progressive deterioration.

Question 36: What does the symbol 'SA' in the white section of an NFPA 704 diamond indicate?

Safety approved by OSHA
Surface-active corrosive
Simple asphyxiant gas (Correct answer)
Severe allergen hazard

Correct answer: Simple asphyxiant gas

SA stands for Simple Asphyxiant and identifies gases such as nitrogen or helium that displace oxygen and can cause suffocation without being otherwise toxic.

Question 37: Which organization publishes the National Electrical Code (NEC)?

Occupational Safety and Health Administration (OSHA)
Underwriters Laboratories (UL)
Institute of Electrical and Electronics Engineers (IEEE)
National Fire Protection Association (NFPA) (Correct answer)

Correct answer: National Fire Protection Association (NFPA)

The NFPA is responsible for developing and publishing the NEC.

Question 38: According to NEC Article 110, what is the required working clearance in front of electrical panels?

36 inches (Correct answer)
48 inches
30 inches
24 inches

Correct answer: 36 inches

The NEC requires a minimum working clearance of 36 inches in front of electrical panels for safe operation and maintenance.

Question 39: In NFPA 704, a flammability rating of 2 applies to liquids with a flash point in which range?

Above 200°F (93.3°C)
Between 73°F and 100°F (22.8–37.8°C)
Below 73°F (22.8°C)
Between 100°F and 200°F (37.8–93.3°C) (Correct answer)

Correct answer: Between 100°F and 200°F (37.8–93.3°C)

A flammability rating of 2 applies to liquids with flash points between 100°F and 200°F (37.8–93.3°C), which must be moderately heated before ignition.

Question 40: Under NFPA 10, what type of extinguisher is best suited for a Class K kitchen fire involving cooking oils?

Halon
Wet chemical (Correct answer)
CO2
ABC dry chemical

Correct answer: Wet chemical

NFPA 10 recognizes wet chemical extinguishers as the most effective agent for Class K fires involving cooking oils and fats.

Question 41: How often is the National Electrical Code (NEC) updated?

Every 5 years
Annually
Every 3 years (Correct answer)
Every 2 years

Correct answer: Every 3 years

The NEC is revised and published every three years to reflect new technologies and safety practices.

Question 42: What is the minimum required flow pressure at the most remote sprinkler in an NFPA 13 light hazard system?

15 psi
7 psi
5 psi
10 psi (Correct answer)

Correct answer: 10 psi

NFPA 13 requires a minimum residual pressure of 7 psi at the most remote sprinkler, but design pressure at each sprinkler must meet the hydraulic calculation, commonly 7 psi minimum.

Question 43: Under NFPA 72, smoke detectors must be located at minimum how far from a supply air diffuser?

10 feet
1 foot
5 feet
3 feet (Correct answer)

Correct answer: 3 feet

NFPA 72 requires smoke detectors to be located at least 3 feet from air supply diffusers to prevent airflow from diluting smoke before it reaches the detector.

Question 44: According to NFPA 72, where must a remote annunciator panel be located?

Adjacent to the main fire alarm control unit
At the main electrical panel
In the mechanical room
At a location approved by the authority having jurisdiction (Correct answer)

Correct answer: At a location approved by the authority having jurisdiction

NFPA 72 requires remote annunciator panels to be located where approved by the authority having jurisdiction (AHJ).

Question 45: Under NFPA 72, what is the maximum height above the floor at which a manual pull station may be installed?

54 inches
60 inches (Correct answer)
66 inches
48 inches

Correct answer: 60 inches

NFPA 72 requires manual pull stations to be mounted between 42 and 60 inches above the finished floor.

Question 46: According to NFPA 25, what is the required weekly test for an electric fire pump?

Visual inspection only
Full flow test for 10 minutes
Pressure test at rated flow
Churn test (no-flow) for 10 minutes (Correct answer)

Correct answer: Churn test (no-flow) for 10 minutes

NFPA 25 requires electric fire pumps to be run weekly under no-flow (churn) conditions for a minimum of 10 minutes.

Question 47: What does the symbol 'OX' or 'OXY' in the white section of an NFPA 704 diamond indicate?

The material is an oxidizer that can intensify fires (Correct answer)
The material is highly toxic and corrosive
The material is radioactive
The material releases breathable oxygen

Correct answer: The material is an oxidizer that can intensify fires

OX or OXY in the white section identifies the material as an oxidizer, which can cause or enhance combustion of other materials and may react violently with fuels.

Question 48: Where is the NFPA 704 placard most commonly and appropriately displayed?

On stationary containers, storage tanks, and building entrances where hazardous materials are stored or used (Correct answer)
Only on vehicles transporting hazardous materials on highways
On personal protective equipment worn by chemical handlers
Exclusively inside chemical storage logs and safety data sheets

Correct answer: On stationary containers, storage tanks, and building entrances where hazardous materials are stored or used

NFPA 704 placards are placed on fixed facilities such as storage tanks, containers, and buildings to alert emergency responders before they enter a hazardous area.

Question 49: An instability rating of 4 in NFPA 704 indicates the material:

Is readily capable of detonation or explosive decomposition at normal temperatures (Correct answer)
Is normally stable at all temperatures
Can detonate only with a strong external initiator
Becomes unstable only at elevated temperatures and pressures

Correct answer: Is readily capable of detonation or explosive decomposition at normal temperatures

An instability rating of 4 means the material is readily capable of detonation or explosive decomposition at normal temperatures and pressures, representing the maximum reactivity hazard.

Question 50: Under NFPA 72, what is the maximum allowable sound level for a public mode audible alarm signal in a sleeping area?

110 dB(A)
70 dB(A)
75 dB(A) (Correct answer)
55 dB(A)

Correct answer: 75 dB(A)

NFPA 72 requires that public mode audible alarms produce a sound level of at least 75 dB(A) at the pillow in sleeping areas.

Question 51: According to NFPA 25, what action is required when a sprinkler head shows signs of corrosion, paint, or loading?

Replace the sprinkler head immediately (Correct answer)
Document and monitor for 6 months
Clean the sprinkler head
Apply touch-up paint to protect it

Correct answer: Replace the sprinkler head immediately

NFPA 25 requires that any sprinkler showing signs of corrosion, loading, or unauthorized paint be replaced immediately.

Question 52: According to NFPA 1, which of the following is NOT a permitted use of a means of egress?

Storage of merchandise or supplies (Correct answer)
Access to a required exit discharge
Normal daily travel through the building
Travel to the nearest exit

Correct answer: Storage of merchandise or supplies

NFPA 1 prohibits using means of egress for storage of any materials, as this can block safe evacuation routes.

Question 53: According to NFPA 25, what is the minimum flow required during an inspector's test connection flow test to verify sprinkler system waterflow alarms?

Flow equivalent to one sprinkler (Correct answer)
25 gpm
50 gpm
Flow equivalent to two sprinklers

Correct answer: Flow equivalent to one sprinkler

NFPA 25 specifies that the inspector's test connection must produce a flow equivalent to one sprinkler to test waterflow alarm devices.

Question 54: Which NFPA 704 health rating indicates 'extreme danger' where serious injury is likely from short exposure?

1
3 (Correct answer)
2
4

Correct answer: 3

A health rating of 3 indicates short exposure could cause serious temporary or residual injury, requiring full protective equipment for emergency responders.

Question 55: According to NFPA 1, what must a fire safety and evacuation plan include?

Emergency procedures, staff assignments, evacuation routes, and training requirements (Correct answer)
Utility shutoff locations only
Insurance policy number and coverage details
Contact information for the fire department only

Correct answer: Emergency procedures, staff assignments, evacuation routes, and training requirements

NFPA 1 requires fire safety and evacuation plans to address emergency procedures, staff responsibilities, evacuation routes, and staff training.

Question 56: Under NFPA 30, underground storage tanks must be equipped with which device to prevent overflow during filling?

Ball valve with tamper switch
Overfill prevention device (Correct answer)
Pressure relief valve
Check valve

Correct answer: Overfill prevention device

NFPA 30 requires underground storage tanks to have overfill prevention devices to automatically stop or signal when the tank reaches 90–95% capacity.

Question 57: Under NFPA 10, what condition automatically requires a fire extinguisher to be hydrostatically tested?

When transferred to a new owner
When more than 10 years old
When the label is illegible
After any use, full or partial discharge (Correct answer)

Correct answer: After any use, full or partial discharge

NFPA 10 requires that any extinguisher that has been used, even partially, be subjected to maintenance and potentially hydrostatic testing before being returned to service.

Question 58: According to NFPA 72, which initiating device is required in the air ducts of HVAC systems serving multiple floors?

Duct smoke detector (Correct answer)
Sprinkler flow switch
Heat detector
Carbon monoxide detector

Correct answer: Duct smoke detector

NFPA 72 requires duct smoke detectors in HVAC systems to prevent smoke from being distributed to other areas through ductwork.

Question 59: According to NFPA 25, which valve must be tested by partially closing it and verifying the waterflow alarm activates?

Control valve tamper switch (Correct answer)
Check valve
OS&Y gate valve
Butterfly valve

Correct answer: Control valve tamper switch

NFPA 25 requires the control valve supervisory (tamper) switch to be tested by partially closing the valve and verifying the supervisory alarm is received.

Question 60: Under NFPA 72, what minimum standby battery capacity is required for a fire alarm control unit?

4 hours alarm + 4 hours standby
24 hours standby + 5 minutes alarm (Correct answer)
4 hours standby + 15 minutes alarm
60 minutes alarm only

Correct answer: 24 hours standby + 5 minutes alarm

NFPA 72 requires fire alarm control units to have battery backup for 24 hours in standby followed by 5 minutes in full alarm.

Question 61: In the NFPA 704 system, which color section represents the health hazard?

White
Blue (Correct answer)
Yellow
Red

Correct answer: Blue

The blue section, located on the left side of the diamond, represents the health hazard rating.

Question 62: In the NFPA 704 system, which color section represents flammability?

Red (Correct answer)
Yellow
White
Blue

Correct answer: Red

The red section, located at the top of the diamond, represents the flammability hazard rating.

Question 63: Under NFPA 25, what is the required frequency for a full flow trip test of a dry pipe valve?

Annually (Correct answer)
Every 3 years
Every 10 years
Every 5 years

Correct answer: Annually

NFPA 25 requires a full flow trip test of dry pipe valves annually to ensure the system operates correctly.

Question 64: According to NFPA 1, what type of permit is typically required before storing hazardous materials in quantities exceeding established thresholds?

State environmental permit only
EPA permit only
Business license
Hazardous materials permit from the AHJ (Correct answer)

Correct answer: Hazardous materials permit from the AHJ

NFPA 1 requires a hazardous materials permit from the AHJ before storing or handling quantities of hazardous materials above established thresholds.

Question 65: Under NFPA 10, what is the maximum travel distance to a Class B extinguisher in a low-hazard occupancy?

30 feet
75 feet
100 feet
50 feet (Correct answer)

Correct answer: 50 feet

NFPA 10 limits travel distance to a Class B extinguisher in low-hazard areas to 50 feet.

Question 66: Under NFPA 13, what type of sprinkler system uses air pressure to hold water back until a sprinkler activates?

Preaction system
Wet pipe system
Dry pipe system (Correct answer)
Deluge system

Correct answer: Dry pipe system

A dry pipe system uses pressurized air or nitrogen to hold the water back in the supply piping until a sprinkler head opens.

Question 67: According to NFPA 72, when a fire alarm system is out of service for more than how many hours must the authority having jurisdiction be notified?

24 hours (Correct answer)
8 hours
4 hours
2 hours

Correct answer: 24 hours

NFPA 72 requires notification of the AHJ when a fire alarm system is out of service for more than 8 hours.

Question 68: Under NFPA 72, what is the minimum visible notification appliance (strobe) candela rating for a public area with 16-foot ceilings?

75 cd (Correct answer)
30 cd
15 cd
110 cd

Correct answer: 75 cd

NFPA 72 requires a minimum of 75 candela for strobes in rooms with ceiling heights between 10 and 16 feet when mounted on a wall.

Question 69: According to NFPA 30, which containers are approved for storing Class I flammable liquids in quantities up to 5 gallons?

Listed safety cans or approved metal containers (Correct answer)
Standard 5-gallon buckets with lids
Any plastic container with a screw-top lid
Clear glass jugs with cork stoppers

Correct answer: Listed safety cans or approved metal containers

NFPA 30 requires Class I flammable liquids in quantities up to 5 gallons to be stored in listed safety cans or approved metal containers.

Question 70: According to the NFPA Life Safety Code, how often should fire drills be conducted in healthcare facilities?

Monthly
Annually
Semi-annually
Quarterly (Correct answer)

Correct answer: Quarterly

The LSC mandates that fire drills in healthcare facilities should be conducted quarterly to ensure staff preparedness.

Question 71: What is the minimum water supply duration required for a light hazard occupancy sprinkler system under NFPA 13?

15 minutes
60 minutes
90 minutes
30 minutes (Correct answer)

Correct answer: 30 minutes

NFPA 13 requires a minimum water supply duration of 30 minutes for light hazard occupancies.

Question 72: Which of the following is a critical component of a means of egress as per the NFPA Life Safety Code?

HVAC system
Fire extinguisher
Emergency lighting (Correct answer)
Security cameras

Correct answer: Emergency lighting

Emergency lighting is essential in a means of egress to ensure that occupants can see and navigate exits during an emergency.

Question 73: What NEC article covers the installation of photovoltaic (solar) systems?

Article 334
Article 310
Article 750
Article 690 (Correct answer)

Correct answer: Article 690

Article 690 of the NEC provides guidelines and requirements for the installation of photovoltaic (solar) systems.

Question 74: Under NFPA 25, how often must the internal condition of wet pipe system piping be inspected in areas with a history of microbiologically influenced corrosion (MIC)?

Every 3 years
Annually (Correct answer)
Every 5 years
Only after an obstruction event

Correct answer: Annually

NFPA 25 requires annual internal inspections of wet pipe systems in environments with a history of MIC contamination.

Question 75: Under NFPA 30, which classification applies to a liquid with a flash point below 73°F and a boiling point below 100°F?

Class II
Class IC
Class IA (Correct answer)
Class IB

Correct answer: Class IA

NFPA 30 classifies liquids with a flash point below 73°F and a boiling point below 100°F as Class IA flammable liquids.

Question 76: Under NFPA 72, what is the purpose of a Class A wiring style for initiating device circuits?

Permit wireless operation
Allow continued operation after a single open or ground fault (Correct answer)
Reduce installation cost
Support higher device counts

Correct answer: Allow continued operation after a single open or ground fault

Class A wiring uses a loop configuration so that a single open or ground fault does not disable the entire circuit, allowing continued operation.

Question 77: According to NFPA 30, what is the minimum distance between a flammable liquid dispensing station and any ignition source?

10 feet
20 feet (Correct answer)
25 feet
5 feet

Correct answer: 20 feet

NFPA 30 requires a minimum separation of 20 feet between flammable liquid dispensing operations and potential ignition sources.

Question 78: What type of occupancy is classified under Assembly Occupancies in the NFPA Life Safety Code?

Industrial factories
Office buildings
Theaters and auditoriums (Correct answer)
Schools

Correct answer: Theaters and auditoriums

Assembly Occupancies include places where people gather for social, recreational, or entertainment purposes, such as theaters and auditoriums.

Question 79: Under NFPA 13, what is required when a sprinkler system is installed in a building with a combustible concealed space?

Sprinklers must be installed in the concealed space (Correct answer)
The space must be filled with fire retardant foam
No special requirements
Only smoke detectors are required

Correct answer: Sprinklers must be installed in the concealed space

NFPA 13 requires sprinklers in combustible concealed spaces unless specific exemptions based on construction type and insulation apply.

Question 80: According to NFPA 25, what must be done after any sprinkler system work that requires draining the system?

Submit a written report to the AHJ
Perform a main drain test and restore the system to service (Correct answer)
Wait 24 hours before restoring service
Replace all sprinkler heads

Correct answer: Perform a main drain test and restore the system to service

NFPA 25 requires that after any system maintenance requiring draining, a main drain test be performed and the system fully restored to service.

Question 81: According to NFPA 25, how often must a main drain test be conducted on a wet pipe sprinkler system?

Every 5 years
Monthly
Quarterly
Annually (Correct answer)

Correct answer: Annually

NFPA 25 requires an annual main drain test to verify that the water supply is unobstructed and pressure is adequate.

Question 82: Which NFPA code is known as the Life Safety Code?

NFPA 101 (Correct answer)
NFPA 10
NFPA 5000
NFPA 72

Correct answer: NFPA 101

NFPA 101 is the official Life Safety Code published by the National Fire Protection Association.

Question 83: Under NFPA 1, what is the maximum travel distance to an exit in a business occupancy without a sprinkler system?

200 feet
250 feet
100 feet
150 feet (Correct answer)

Correct answer: 150 feet

NFPA 1 limits the travel distance to an exit in a non-sprinklered business occupancy to 200 feet.

Question 84: Under NFPA 13, what hazard classification applies to auto showrooms, bakeries, and laundries?

Light hazard
Ordinary hazard Group 2
Ordinary hazard Group 1 (Correct answer)
Extra hazard Group 1

Correct answer: Ordinary hazard Group 1

NFPA 13 classifies auto showrooms, bakeries, and laundries as Ordinary Hazard Group 1 occupancies.

Question 85: Under NFPA 30, which type of vent pipe is required on an above-ground atmospheric storage tank containing Class I liquids?

Flame arrester or pressure-vacuum vent (Correct answer)
Pressure relief valve set at 15 psi
Open vent pipe only
Check valve vent

Correct answer: Flame arrester or pressure-vacuum vent

NFPA 30 requires above-ground atmospheric tanks storing Class I liquids to be equipped with a flame arrester or pressure-vacuum vent to prevent ignition of vapors.

Question 86: An instability rating of 3 in NFPA 704 means the material:

Undergoes violent chemical change but will not detonate
Is normally stable under all conditions
Can detonate or explode but requires a strong initiating source (Correct answer)
Is readily capable of detonation at normal ambient temperatures

Correct answer: Can detonate or explode but requires a strong initiating source

An instability rating of 3 means the material can detonate or explode but requires a strong initiating source such as heat, shock, or detonator.

Question 87: According to NFPA 10, how often must non-rechargeable (disposable) fire extinguishers be replaced?

Every 3 years
Every 12 years (Correct answer)
Every 5 years
Every 6 years

Correct answer: Every 12 years

NFPA 10 requires non-rechargeable fire extinguishers to be replaced every 12 years from the date of manufacture.

Question 88: Under NFPA 72, a notification appliance circuit (NAC) must be supervised for which of the following conditions?

Low battery only
Open circuit and ground fault (Correct answer)
Loss of AC power only
Overload and short circuit

Correct answer: Open circuit and ground fault

NFPA 72 requires that notification appliance circuits be monitored for integrity, meaning open circuits and ground faults must be detected.

Question 89: Which NFPA 704 health rating indicates exposure could cause death?

4 (Correct answer)
2
3
1

Correct answer: 4

A health rating of 4 indicates that very short exposure could cause death or major residual injury, even with emergency responder protective equipment.

Question 90: According to NFPA 30, what is required around above-ground flammable liquid tanks to contain spills?

Concrete curbing 4 inches high
Sand barrier 12 inches wide
Gravel bed at least 6 inches deep
Secondary containment capable of holding 100% of the largest tank volume (Correct answer)

Correct answer: Secondary containment capable of holding 100% of the largest tank volume

NFPA 30 requires secondary containment (diked areas or equivalent) capable of holding 100% of the volume of the largest tank within the impoundment area.

Question 91: What shape is used for the NFPA 704 hazard identification system placard?

Square rotated 45 degrees (diamond) (Correct answer)
Equilateral triangle
Circle divided into quadrants
Rectangle divided into four sections

Correct answer: Square rotated 45 degrees (diamond)

NFPA 704 uses a square rotated 45 degrees, commonly called a 'fire diamond,' divided into four colored sections.

Question 92: According to NFPA 25, what condition requires replacement of a sprinkler head without testing?

Sprinkler is more than 50 years old in a wet system (Correct answer)
Sprinkler is a fast-response type
Sprinkler has a painted finish from factory
Sprinkler is more than 25 years old

Correct answer: Sprinkler is more than 50 years old in a wet system

NFPA 25 requires that sprinklers 50 years or older in wet systems be replaced or sample-tested; replacement is required if they fail testing.

Question 93: Under NFPA 25, which condition during a hydrostatic test would require the system to fail?

Pressure drops more than 5 psi in 15 minutes
Any pressure drop during the test period
Pressure drops more than 10 psi in 2 hours (Correct answer)
Pressure drops more than 20 psi in 24 hours

Correct answer: Pressure drops more than 10 psi in 2 hours

NFPA 25 specifies that a hydrostatic test fails if pressure drops more than 10 psi during the 2-hour test period.

Question 94: What color code indicates a sprinkler with a temperature rating of 135–170°F (57–77°C) under NFPA 13?

Uncolored/Black (Correct answer)
Blue
Red
White

Correct answer: Uncolored/Black

NFPA 13 specifies that sprinklers rated at 135–170°F are uncolored (natural brass) or marked with a black color code.

Question 95: Under NFPA 30, what bonding and grounding requirement applies when transferring Class I flammable liquids from one container to another?

Bonding is required only for metal containers
No bonding required for containers under 5 gallons
Containers must be bonded together and grounded to prevent static sparks (Correct answer)
Only the receiving container needs grounding

Correct answer: Containers must be bonded together and grounded to prevent static sparks

NFPA 30 requires that both containers be bonded to each other and that the system be grounded to prevent static electricity discharge during transfer.

Question 96: According to NFPA 10, what is the maximum mounting height for the handle of a fire extinguisher weighing more than 40 pounds?

4 feet (Correct answer)
5.5 feet
5 feet
3.5 feet

Correct answer: 4 feet

NFPA 10 requires that extinguishers weighing more than 40 pounds be mounted so that the handle is no higher than 3.5 feet above the floor.

Question 97: A rating of '0' in any NFPA 704 category indicates the material:

Has a severe unclassified hazard
Has a moderate hazard in that category
Has an unknown or unstudied hazard
Poses no significant hazard in that category (Correct answer)

Correct answer: Poses no significant hazard in that category

A rating of 0 means the material poses no significant hazard in that particular category under fire conditions.

Question 98: Under NFPA 1, what is the maximum rise for a single step in a means of egress?

10 inches
5 inches
7 inches
8.25 inches (Correct answer)

Correct answer: 8.25 inches

NFPA 1 limits the maximum riser height in egress stairways to 8.25 inches to ensure safe, consistent stepping.

Question 99: Under NFPA 25, what must be done with recorded inspection, testing, and maintenance (ITM) reports?

Retained for the life of the system and made available to the AHJ (Correct answer)
Retained until the next inspection of the same type
Retained for 1 year only
Submitted to NFPA headquarters

Correct answer: Retained for the life of the system and made available to the AHJ

NFPA 25 requires that ITM records be retained for the life of the system and be available for review by the authority having jurisdiction.

Question 100: According to NFPA 25, how often must fire pump acceptance tests be repeated after initial installation?

Annually (Correct answer)
Every 5 years
Every 10 years
Every 3 years

Correct answer: Annually

NFPA 25 requires that fire pump annual flow tests be conducted every year to verify the pump delivers rated performance.

NFPA Certified Fire Inspector I (CFI-I) Exam

The NFPA CFI-I (Certified Fire Inspector I) exam is a 100-question multiple-choice test with a 4-hour time limit, requiring a passing score of 70%. It is based on NFPA 1 (Fire Code) and covers fire inspection administration, fire protection systems and equipment, storage and handling of hazardous substances, and occupancy-specific fire and life safety requirements.

100

Questions

240 min

Time Limit

70%

To Pass

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