Michigan CDL Advanced Endorsement
Exam Practice Questions And Correct
Answers (Verified Answers) Plus
Rationale 2026 Q&A| Instant Download
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1. A vehicle’s “no-zone” refers to:
A. The area where the driver sits
B. Blind spots where crashes are more likely to occur
C. Restricted highway zones
D. Areas where speed cannot be increased
Correct answer is B because “no-zones” are blind spots around large
vehicles where other vehicles disappear from the driver’s view,
increasing collision risk.
2. When coupling a trailer, the fifth wheel plate should be:
A. Slightly greased
B. Well-greased to prevent locking issues
C. Dry to prevent slippage
D. Painted for visibility
Correct answer is B because proper lubrication ensures the trailer
locks securely and reduces wear.
3. The primary purpose of trailer air lines is to:
A. Provide power to the brakes
B. Cool the engine
C. Supply air to service and emergency brakes
D. Inflate tires
, Correct answer is C because trailer air lines carry compressed air to
operate the service and emergency braking systems.
4. When making a straight truck or combination vehicle turn, you should:
A. Turn early and wide regardless of obstacles
B. Turn as late as possible
C. Swing wide to the left before turning right
D. Keep wheels centered until the last moment
Correct answer is C because large vehicles need extra space to
complete turns without hitting curbs or objects.
5. An anti-lock braking system (ABS) helps a driver to:
A. Speed up more quickly
B. Maintain steering control during hard braking
C. Decrease stopping distance always
D. Reduce fuel consumption
Correct answer is B because ABS prevents wheel lockup, allowing
steering during heavy braking.
6. When inspecting a trailer’s landing gear, you should check that:
A. It is brightly colored
B. It is secure and operates freely
C. The bolts are painted red
D. It has no lubrication anywhere
Correct answer is B because the landing gear must be secure and
functional to support a loaded trailer when uncoupled.
7. A breakaway switch on a trailer is designed to:
A. Turn on the lights
B. Automatically apply the trailer brakes if the trailer separates
C. Release air from the tractor brakes
D. Signal low fuel
Correct answer is B because the breakaway switch protects against
uncontrolled trailers if disconnected.
8. When performing a coupling check, the upper fifth wheel should be
locked:
A. Within three inches of the rear of the skid plate
B. Fully locked with the locking jaws around the shank of the kingpin
C. Loose to allow pivoting
, D. Slightly touching only
Correct answer is B because full lock of the jaws around the kingpin is
necessary for secure coupling.
9. A trailer that is “fifth wheel kingpin locked” means:
A. The tractor is stopped
B. The kingpin is secured by the fifth wheel jaws
C. The air brakes are locked
D. The trailer is uncoupled
Correct answer is B because proper locking prevents separation
during movement.
10. During an anti-lock brake system malfunction, the driver will:
A. Lose all brakes
B. Hear no indicator lights
C. Have normal braking without ABS protection
D. Gain fuel economy
Correct answer is C because ABS malfunction does not disable normal
brakes, but ABS protection is lost.
11. When inspecting the tractor protection valve, you should ensure
it:
A. Is fully closed at all times
B. Works to protect the tractor air supply if the trailer air supply
leaks
C. Operates the headlights
D. Controls cab temperature
Correct answer is B because this valve saves air in the tractor in case
of trailer air loss.
12. When performing a trailer height check before backing, you
position the tractor so that:
A. Trailer is under sun
B. The trailer landing gear clears the tractor frame
C. The trailer wheels are straight
D. The tires are cool
Correct answer is B because correct height prevents damage and
misalignment.
Exam Practice Questions And Correct
Answers (Verified Answers) Plus
Rationale 2026 Q&A| Instant Download
1. A vehicle’s “no-zone” refers to:
A. The area where the driver sits
B. Blind spots where crashes are more likely to occur
C. Restricted highway zones
D. Areas where speed cannot be increased
Correct answer is B because “no-zones” are blind spots around large
vehicles where other vehicles disappear from the driver’s view,
increasing collision risk.
2. When coupling a trailer, the fifth wheel plate should be:
A. Slightly greased
B. Well-greased to prevent locking issues
C. Dry to prevent slippage
D. Painted for visibility
Correct answer is B because proper lubrication ensures the trailer
locks securely and reduces wear.
3. The primary purpose of trailer air lines is to:
A. Provide power to the brakes
B. Cool the engine
C. Supply air to service and emergency brakes
D. Inflate tires
, Correct answer is C because trailer air lines carry compressed air to
operate the service and emergency braking systems.
4. When making a straight truck or combination vehicle turn, you should:
A. Turn early and wide regardless of obstacles
B. Turn as late as possible
C. Swing wide to the left before turning right
D. Keep wheels centered until the last moment
Correct answer is C because large vehicles need extra space to
complete turns without hitting curbs or objects.
5. An anti-lock braking system (ABS) helps a driver to:
A. Speed up more quickly
B. Maintain steering control during hard braking
C. Decrease stopping distance always
D. Reduce fuel consumption
Correct answer is B because ABS prevents wheel lockup, allowing
steering during heavy braking.
6. When inspecting a trailer’s landing gear, you should check that:
A. It is brightly colored
B. It is secure and operates freely
C. The bolts are painted red
D. It has no lubrication anywhere
Correct answer is B because the landing gear must be secure and
functional to support a loaded trailer when uncoupled.
7. A breakaway switch on a trailer is designed to:
A. Turn on the lights
B. Automatically apply the trailer brakes if the trailer separates
C. Release air from the tractor brakes
D. Signal low fuel
Correct answer is B because the breakaway switch protects against
uncontrolled trailers if disconnected.
8. When performing a coupling check, the upper fifth wheel should be
locked:
A. Within three inches of the rear of the skid plate
B. Fully locked with the locking jaws around the shank of the kingpin
C. Loose to allow pivoting
, D. Slightly touching only
Correct answer is B because full lock of the jaws around the kingpin is
necessary for secure coupling.
9. A trailer that is “fifth wheel kingpin locked” means:
A. The tractor is stopped
B. The kingpin is secured by the fifth wheel jaws
C. The air brakes are locked
D. The trailer is uncoupled
Correct answer is B because proper locking prevents separation
during movement.
10. During an anti-lock brake system malfunction, the driver will:
A. Lose all brakes
B. Hear no indicator lights
C. Have normal braking without ABS protection
D. Gain fuel economy
Correct answer is C because ABS malfunction does not disable normal
brakes, but ABS protection is lost.
11. When inspecting the tractor protection valve, you should ensure
it:
A. Is fully closed at all times
B. Works to protect the tractor air supply if the trailer air supply
leaks
C. Operates the headlights
D. Controls cab temperature
Correct answer is B because this valve saves air in the tractor in case
of trailer air loss.
12. When performing a trailer height check before backing, you
position the tractor so that:
A. Trailer is under sun
B. The trailer landing gear clears the tractor frame
C. The trailer wheels are straight
D. The tires are cool
Correct answer is B because correct height prevents damage and
misalignment.
