DMV Traffic Law Knowledge Exam | Questions
And Answers [With Verified Rationales] Rated
A+ | 2026/27 Qs & Ans | Digital Pdf Download
Question 1
When approaching a stop sign, a driver must:
A. Slow down only if other vehicles are present
B. Continue through if the road appears clear
C. Come to a complete stop before proceeding
D. Honk before entering the intersection
Answer: C. Come to a complete stop before proceeding
Rationale: Traffic laws require drivers to stop fully at stop signs
and yield to pedestrians and cross traffic before continuing.
Question 2
What does a flashing yellow traffic signal mean?
A. Stop immediately
B. Proceed with caution
C. Traffic signal is broken
D. Yield only to trucks
,Answer: B. Proceed with caution
Rationale: A flashing yellow light warns drivers to slow down and
proceed carefully through the intersection.
Question 3
A solid double yellow line on the roadway means:
A. Passing is permitted in both directions
B. Only trucks may cross
C. Parking is prohibited
D. Passing is prohibited for traffic in both directions
Answer: D. Passing is prohibited for traffic in both directions
Rationale: Double solid yellow lines separate opposing traffic
lanes and indicate that passing is unsafe.
Question 4
What should a driver do before changing lanes?
A. Accelerate suddenly
B. Check mirrors and blind spots
C. Honk continuously
D. Turn off headlights
,Answer: B. Check mirrors and blind spots
Rationale: Checking mirrors and blind spots helps ensure the
lane is clear before moving over.
Question 5
A red traffic signal means:
A. Speed up through the intersection
B. Proceed carefully without stopping
C. Stop before entering the intersection
D. Yield only to pedestrians
Answer: C. Stop before entering the intersection
Rationale: Drivers must stop at a red light and wait until it is safe
and legal to proceed.
Question 6
What is the legal blood alcohol concentration (BAC) limit for most
adult drivers in many states?
A. 0.15%
B. 0.12%
, C. 0.10%
D. 0.08%
Answer: D. 0.08%
Rationale: In most states, a BAC of 0.08% or higher is considered
legally impaired for adult drivers.
Question 7
When must headlights be used?
A. Only during rain
B. From sunset to sunrise and during poor visibility
C. Only on highways
D. Only in urban areas
Answer: B. From sunset to sunrise and during poor visibility
Rationale: Headlights improve visibility for both the driver and
other road users.
Question 8
What does a yield sign require drivers to do?
And Answers [With Verified Rationales] Rated
A+ | 2026/27 Qs & Ans | Digital Pdf Download
Question 1
When approaching a stop sign, a driver must:
A. Slow down only if other vehicles are present
B. Continue through if the road appears clear
C. Come to a complete stop before proceeding
D. Honk before entering the intersection
Answer: C. Come to a complete stop before proceeding
Rationale: Traffic laws require drivers to stop fully at stop signs
and yield to pedestrians and cross traffic before continuing.
Question 2
What does a flashing yellow traffic signal mean?
A. Stop immediately
B. Proceed with caution
C. Traffic signal is broken
D. Yield only to trucks
,Answer: B. Proceed with caution
Rationale: A flashing yellow light warns drivers to slow down and
proceed carefully through the intersection.
Question 3
A solid double yellow line on the roadway means:
A. Passing is permitted in both directions
B. Only trucks may cross
C. Parking is prohibited
D. Passing is prohibited for traffic in both directions
Answer: D. Passing is prohibited for traffic in both directions
Rationale: Double solid yellow lines separate opposing traffic
lanes and indicate that passing is unsafe.
Question 4
What should a driver do before changing lanes?
A. Accelerate suddenly
B. Check mirrors and blind spots
C. Honk continuously
D. Turn off headlights
,Answer: B. Check mirrors and blind spots
Rationale: Checking mirrors and blind spots helps ensure the
lane is clear before moving over.
Question 5
A red traffic signal means:
A. Speed up through the intersection
B. Proceed carefully without stopping
C. Stop before entering the intersection
D. Yield only to pedestrians
Answer: C. Stop before entering the intersection
Rationale: Drivers must stop at a red light and wait until it is safe
and legal to proceed.
Question 6
What is the legal blood alcohol concentration (BAC) limit for most
adult drivers in many states?
A. 0.15%
B. 0.12%
, C. 0.10%
D. 0.08%
Answer: D. 0.08%
Rationale: In most states, a BAC of 0.08% or higher is considered
legally impaired for adult drivers.
Question 7
When must headlights be used?
A. Only during rain
B. From sunset to sunrise and during poor visibility
C. Only on highways
D. Only in urban areas
Answer: B. From sunset to sunrise and during poor visibility
Rationale: Headlights improve visibility for both the driver and
other road users.
Question 8
What does a yield sign require drivers to do?
