DGT Theory Test (Examen Teórico DGT) — Questions and Answers

Question 1: What precaution should drivers take in areas prone to sudden flash flooding?

Drive with both feet ready for instant braking
Stay near the center lane to avoid roadside flooding
Keep windows down so you can exit quickly if trapped
Monitor weather alerts and never attempt to cross flowing or unknown-depth water (Correct answer)

Correct answer: Monitor weather alerts and never attempt to cross flowing or unknown-depth water

Flash floods can rise within minutes, and water depth cannot be accurately judged visually from a vehicle.

Question 2: How does collaboration enhance Environmental Awareness & Conservation in Directorate-General for Traffic Test?

It brings diverse perspectives and improves outcomes (Correct answer)
It reduces individual accountability
It slows down the process
It creates unnecessary meetings

Correct answer: It brings diverse perspectives and improves outcomes

Collaboration brings together different viewpoints and expertise, leading to better decision-making and outcomes.

Question 3: When is it appropriate to use your vehicle's four-wheel drive (4WD) high range?

During normal dry highway driving for better traction
Only when completely stopped
On slippery roads at speeds up to 55 mph (Correct answer)
During off-road rock crawling

Correct answer: On slippery roads at speeds up to 55 mph

4WD high range is designed for slippery road conditions at moderate speeds, providing extra traction without the gear reduction of 4WD low.

Question 4: When must a driver yield to a pedestrian in a crosswalk?

Only when the pedestrian has a walk signal
Only when there is a crossing guard present
Whenever a pedestrian is in or entering a crosswalk, marked or unmarked (Correct answer)
Only at marked crosswalks with painted lines

Correct answer: Whenever a pedestrian is in or entering a crosswalk, marked or unmarked

U.S. law requires drivers to yield to pedestrians in both marked and unmarked crosswalks at intersections.

Question 5: Which driving behavior is most likely to cause a rear-end collision on a highway?

Maintaining a consistent speed
Using cruise control in good weather
Following too closely at high speed (Correct answer)
Checking mirrors regularly

Correct answer: Following too closely at high speed

Tailgating at high speed drastically reduces reaction time, making rear-end collisions likely if traffic slows suddenly.

Question 6: When an emergency vehicle with lights and sirens activated approaches an intersection, what must other drivers do?

Continue at the same speed but move slightly to the right
Pull over to the nearest curb or edge of the road and stop (Correct answer)
Accelerate to clear the intersection quickly
Immediately stop in the intersection to let the emergency vehicle through

Correct answer: Pull over to the nearest curb or edge of the road and stop

Drivers must immediately pull to the right edge of the road and stop, giving the emergency vehicle a clear path through.

Question 7: A driver with a BAC of 0.08% is stopped by police. Under implied consent law, what happens if the driver refuses a breathalyzer test?

The officer must obtain a warrant before any penalty applies
The driver's license is automatically suspended and refusal may be used as evidence (Correct answer)
The driver cannot be charged with DUI
The driver is only fined but keeps their license

Correct answer: The driver's license is automatically suspended and refusal may be used as evidence

Refusing a chemical test under implied consent typically results in automatic license suspension and the refusal itself can be presented as evidence of guilt in court.

Question 8: What does the term 'aggravated DUI' typically refer to?

Any DUI committed in daylight hours
A DUI involving a BAC significantly above the legal limit, a minor passenger, or prior convictions (Correct answer)
Driving under the influence in a school zone only
A first-time DUI with a BAC of exactly 0.08%

Correct answer: A DUI involving a BAC significantly above the legal limit, a minor passenger, or prior convictions

Aggravated DUI involves enhanced circumstances such as an extremely high BAC (e.g., 0.16% or more), having a child passenger, causing injury, or having prior DUI convictions.

Question 9: Which of the following best describes 'speed matching' on a highway merge?

Stopping at the end of the on-ramp
Slowing to let all highway vehicles pass first
Accelerating to match freeway traffic speed before merging (Correct answer)
Using the shoulder to gain extra merging distance

Correct answer: Accelerating to match freeway traffic speed before merging

Speed matching means reaching the same speed as highway traffic before merging to avoid dangerous speed differentials.

Question 10: What does 'engine knocking' typically indicate?

Pre-ignition or detonation, often from low-octane fuel or carbon buildup (Correct answer)
A loose heat shield on the exhaust
The engine needs a tune-up
The oil is too thick for current conditions

Correct answer: Pre-ignition or detonation, often from low-octane fuel or carbon buildup

Engine knocking is caused by pre-ignition or detonation — the fuel-air mixture igniting too early or unevenly — often due to low-octane fuel or carbon deposits.

Question 11: What does a flashing yellow traffic signal at an intersection mean?

The signal is about to turn red
Pedestrians have the right-of-way
Proceed with caution; slow down and watch for cross traffic (Correct answer)
Stop completely before proceeding

Correct answer: Proceed with caution; slow down and watch for cross traffic

A flashing yellow light means slow down, proceed with caution, and yield to any conflicting traffic or pedestrians.

Question 12: What is the importance of staying current with trends in Environmental Awareness & Conservation for Directorate-General for Traffic Test?

It is only required for new professionals
It is not necessary once certified
Trends do not affect professional practice
It ensures practices remain effective and relevant (Correct answer)

Correct answer: It ensures practices remain effective and relevant

Staying current with industry trends ensures that professional practices remain effective, relevant, and aligned with evolving standards.

Question 13: A posted speed limit of 65 mph means a driver may legally drive at any speed up to 65 mph. What additional consideration applies?

Drivers may exceed 65 mph to pass other vehicles
The limit only applies during daylight hours
Drivers must maintain exactly 65 mph
Drivers must also drive at a speed safe for current conditions, even below 65 mph (Correct answer)

Correct answer: Drivers must also drive at a speed safe for current conditions, even below 65 mph

Speed limits set the maximum allowed speed, but drivers are legally required to adjust speed to current road, weather, and traffic conditions.

Question 14: When planning a route through a mountain pass in winter, a driver should primarily check:

The scenic rating of the route
The posted speed limits only
The number of fuel stations along the route
Chain control requirements and road closure status (Correct answer)

Correct answer: Chain control requirements and road closure status

Mountain passes may require tire chains or be closed in winter, making chain control checks essential.

Question 15: What is the effect of doubling your speed on your vehicle's kinetic energy and stopping distance?

Both quadruple (Correct answer)
Both double
Both triple
Kinetic energy doubles; stopping distance triples

Correct answer: Both quadruple

Kinetic energy increases with the square of speed, so doubling speed quadruples kinetic energy and approximately quadruples stopping distance.

Question 16: What does a flashing red traffic light mean?

Only stop if other vehicles are present.
Stop completely and proceed when safe. (Correct answer)
Yield to pedestrians but do not stop.
Slow down and proceed with caution.

Correct answer: Stop completely and proceed when safe.

A flashing red traffic light functions identically to a stop sign, requiring drivers to come to a complete stop before the intersection or crosswalk. After stopping, drivers must yield to any cross-traffic or pedestrians and only proceed when it is safe and clear to do so. This signal is often used at intersections where a full stop is necessary but a continuous red light might not be warranted.

Question 17: What is the purpose of a 'variable speed limit' sign on a highway?

To indicate school zone hours
To show the minimum speed required on the road
To set permanent maximum speeds based on road design
To display an electronically adjusted speed limit based on real-time traffic or weather conditions (Correct answer)

Correct answer: To display an electronically adjusted speed limit based on real-time traffic or weather conditions

Variable speed limit signs use real-time data to display appropriate speeds that improve safety and traffic flow in changing conditions.

Question 18: When a traffic signal is completely dark (no lights working), the intersection should be treated as:

A two-way stop
An all-way stop (Correct answer)
An uncontrolled intersection where the larger road has priority
A yield intersection

Correct answer: An all-way stop

A non-functioning traffic signal requires all drivers to stop and treat the intersection as a four-way stop.

Question 19: Which of the following actions will reliably lower a driver's BAC before driving?

Eating a large meal
Drinking black coffee
Taking a cold shower
Waiting for the body to metabolize the alcohol (Correct answer)

Correct answer: Waiting for the body to metabolize the alcohol

Only time allows the liver to metabolize alcohol; coffee, food, and cold showers do not speed up alcohol elimination from the bloodstream.

Question 20: Under DUI law, 'per se' intoxication means:

Officers must observe erratic driving before making a DUI arrest
A BAC at or above the legal limit is sufficient proof of impairment by itself, without additional evidence (Correct answer)
Only a blood test — not a breathalyzer — constitutes legal proof
A driver must fail all field sobriety tests to be charged

Correct answer: A BAC at or above the legal limit is sufficient proof of impairment by itself, without additional evidence

Per se DUI laws mean that a BAC of 0.08% or higher is automatically proof of illegal impairment regardless of how the driver appears or performs on behavioral tests.

Question 21: How does collaboration enhance Traffic Laws & Regulations in Directorate-General for Traffic Test?

It reduces individual accountability
It creates unnecessary meetings
It slows down the process
It brings diverse perspectives and improves outcomes (Correct answer)

Correct answer: It brings diverse perspectives and improves outcomes

Collaboration brings together different viewpoints and expertise, leading to better decision-making and outcomes.

Question 22: When is it appropriate to use hazard lights (emergency flashers) while driving?

Whenever it is raining heavily to warn other drivers
Only when your vehicle is stopped or moving very slowly due to an emergency (Correct answer)
Any time you are driving significantly slower than traffic
While double-parking to run a quick errand

Correct answer: Only when your vehicle is stopped or moving very slowly due to an emergency

Hazard lights signal a genuine emergency or dangerous situation, not routine driving in poor weather.

Question 23: Which condition makes it especially important to increase your following distance?

Light traffic on a familiar route
Clear, dry roads at low speed
Driving during midday with good visibility
Wet, icy, or slippery road surfaces (Correct answer)

Correct answer: Wet, icy, or slippery road surfaces

Wet or icy roads reduce tire traction and significantly increase braking distance, requiring greater following distance.

Question 24: What is the purpose of a 'yield' sign at a merge or intersection?

Drivers must stop completely before proceeding
Drivers have the full right-of-way and other traffic must stop
Drivers must slow down and give the right-of-way to conflicting traffic, stopping only if necessary (Correct answer)
Drivers should honk to alert cross traffic of their presence

Correct answer: Drivers must slow down and give the right-of-way to conflicting traffic, stopping only if necessary

A yield sign means slow and be prepared to stop, but you need only stop if there is conflicting traffic — unlike a stop sign which always requires a full stop.

Question 25: What does it mean to 'take turns' or 'alternate' at a zipper merge on a lane closure?

Drivers in both lanes take turns merging one-for-one at the merge point (Correct answer)
The left lane always has priority over the right lane
Vehicles merge early when the lane ends sign appears
Drivers in the closing lane must stop and wait for all through-lane traffic to pass

Correct answer: Drivers in both lanes take turns merging one-for-one at the merge point

A zipper merge means both lanes remain in use until the closure point, then vehicles alternate one-for-one, improving traffic flow and safety.

Question 26: Which situation BEST justifies detouring from a planned highway route onto local roads?

A traffic alert shows the highway is completely stopped due to an accident (Correct answer)
The highway has a posted speed limit lower than expected
The driver prefers scenic routes
The GPS suggests the local road is 0.5 miles shorter

Correct answer: A traffic alert shows the highway is completely stopped due to an accident

A complete highway stoppage due to an accident makes a local road detour a practical and time-saving choice.

Question 27: When using a navigation app, at what point should the driver enter the destination address?

While traveling at highway speeds
At a red light
When approaching the destination area
Before starting the trip while stationary (Correct answer)

Correct answer: Before starting the trip while stationary

Destination input should be completed before driving to avoid distraction.

Question 28: A driver is pulled over and cannot produce their insurance card. What typically happens?

The officer may issue a citation for failure to provide proof of insurance (Correct answer)
The vehicle is immediately impounded
The driver is arrested on the spot
Nothing, because insurance cards are optional to carry

Correct answer: The officer may issue a citation for failure to provide proof of insurance

Most US states require drivers to carry proof of insurance and can issue a citation if you cannot produce it during a traffic stop.

Question 29: When a Directorate-General for Traffic Test professional discovers a regulatory violation, what is the appropriate action?

Discuss it informally only
Wait to see if it happens again
Report it through proper channels immediately (Correct answer)
Cover it up to avoid trouble

Correct answer: Report it through proper channels immediately

Regulatory violations must be reported through proper channels to prevent harm and maintain compliance with established standards.

Question 30: If you are driving at 60 mph, approximately how many feet does your vehicle travel per second?

44 feet
88 feet (Correct answer)
110 feet
60 feet

Correct answer: 88 feet

At 60 mph, a vehicle travels approximately 88 feet per second, which is why adequate following distance is critical.

DGT Theory Test (Examen Teórico DGT)

The official Spanish driving theory test administered by the Directorate-General for Traffic (DGT), required to obtain a Category B driving licence in Spain. Candidates must answer 30 multiple-choice questions covering traffic law, road signs, speed limits, priority rules, and safe driving behaviour.

Questions

30 min

Time Limit

90%

To Pass

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Exam Rules

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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

These practice questions were written with AI tools. They are not real exam questions. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy

Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

dgt.es — Test delivery, score release, exam format · verified Oct 2026
sede.dgt.gob.es — Eligibility · verified Oct 2026