CDL Tanker Endorsement Examination Verified
Questions, Correct Answers, and Detailed
Explanations for Science Students||Already
Graded A+
1. What is the main danger of driving a tanker vehicle?
A. Increased stopping distance only
B. Vehicle height
C. Liquid surge
D. Tire blowouts
Answer: C
Liquid surge can shift the load suddenly, affecting steering, braking,
and vehicle stability.
2. Liquid surge is strongest when the tanker is:
A. Completely full
B. Completely empty
C. Partially full
D. Carrying hazardous materials
Answer: C
Partially full tanks allow liquid to move freely, increasing surge
effects.
3. How does liquid surge affect stopping distance?
A. Shortens stopping distance
B. Has no effect
C. Increases stopping distance
D. Only affects turns
,Answer: C
Moving liquid pushes forward during braking, making it harder to
stop.
4. When starting or stopping a tanker, you should:
A. Accelerate quickly
B. Brake hard
C. Use smooth, gradual movements
D. Rely on engine braking only
Answer: C
Smooth control reduces surge and maintains vehicle stability.
5. Which type of tank has the most surge?
A. Tanks with baffles
B. Tanks with bulkheads
C. Smooth bore tanks
D. Insulated tanks
Answer: C
Smooth bore tanks have no internal barriers to limit liquid
movement.
6. Baffles in a tanker are designed to:
A. Increase capacity
B. Reduce weight
C. Control liquid surge
D. Prevent leaks
Answer: C
Baffles slow the movement of liquid inside the tank.
, 7. Bulkheads differ from baffles because they:
A. Allow liquid to pass through
B. Are used only for food products
C. Completely separate compartments
D. Increase surge
Answer: C
Bulkheads divide the tank into sealed sections.
8. When driving a tanker, curves should be taken:
A. Faster than normal
B. At the posted speed
C. More slowly than normal
D. With hard braking
Answer: C
Slower speeds reduce rollover risk caused by liquid surge.
9. High center of gravity in tankers makes them more prone to:
A. Jackknifing
B. Rollover
C. Engine failure
D. Brake fade
Answer: B
Tankers are tall and top-heavy, especially when partially full.
10. When braking in a tanker, you should:
Questions, Correct Answers, and Detailed
Explanations for Science Students||Already
Graded A+
1. What is the main danger of driving a tanker vehicle?
A. Increased stopping distance only
B. Vehicle height
C. Liquid surge
D. Tire blowouts
Answer: C
Liquid surge can shift the load suddenly, affecting steering, braking,
and vehicle stability.
2. Liquid surge is strongest when the tanker is:
A. Completely full
B. Completely empty
C. Partially full
D. Carrying hazardous materials
Answer: C
Partially full tanks allow liquid to move freely, increasing surge
effects.
3. How does liquid surge affect stopping distance?
A. Shortens stopping distance
B. Has no effect
C. Increases stopping distance
D. Only affects turns
,Answer: C
Moving liquid pushes forward during braking, making it harder to
stop.
4. When starting or stopping a tanker, you should:
A. Accelerate quickly
B. Brake hard
C. Use smooth, gradual movements
D. Rely on engine braking only
Answer: C
Smooth control reduces surge and maintains vehicle stability.
5. Which type of tank has the most surge?
A. Tanks with baffles
B. Tanks with bulkheads
C. Smooth bore tanks
D. Insulated tanks
Answer: C
Smooth bore tanks have no internal barriers to limit liquid
movement.
6. Baffles in a tanker are designed to:
A. Increase capacity
B. Reduce weight
C. Control liquid surge
D. Prevent leaks
Answer: C
Baffles slow the movement of liquid inside the tank.
, 7. Bulkheads differ from baffles because they:
A. Allow liquid to pass through
B. Are used only for food products
C. Completely separate compartments
D. Increase surge
Answer: C
Bulkheads divide the tank into sealed sections.
8. When driving a tanker, curves should be taken:
A. Faster than normal
B. At the posted speed
C. More slowly than normal
D. With hard braking
Answer: C
Slower speeds reduce rollover risk caused by liquid surge.
9. High center of gravity in tankers makes them more prone to:
A. Jackknifing
B. Rollover
C. Engine failure
D. Brake fade
Answer: B
Tankers are tall and top-heavy, especially when partially full.
10. When braking in a tanker, you should:
