DMV PA - CDL Tank Vehicles "Tanker" Endorsement Multiple Choice Test Questions

1. An emergency forces you to stop your tanker quickly or crash. You should:

a. use light pressure on the pedal
b. lock the brakes with the pedal and hold it there
c. use only the emergency brakes
d. use controlled or stab braking

2. Side-To-Side Surge can cause:

a. tank failure
b. uneven tire wear
c. tire failure
d. rollover

3. You should be extremely cautious when driving smooth bore tanks, especially when you are:

a. going down hill
b. loading and unloading
c. starting or stopping
d. driving against the wind

4. The amount of liquid to load into a tank depends on:

a. the amount of the liquid that will expand in transit
b. the weight of the liquid
c. the legal weight limits
d. all of the above

5. You are driving a tank truck and the front wheels begin to skid. Which of these is most likely to occur?

a. you will continue in a straight line and keep moving forward no matter how much you steer
b. liquid surge will pull the tank from the truck
c. the truck will rollover
d. the truck will stop in the shortest distance

6. You are driving on a clear night. You must dim your headlights from high to low. You should adjust your speed so that you can stop within:

a. 100 feet
b. the distance you will travel in the next 15 seconds
c. the distance you can see ahead
d. the length of your vehicle

7. You should know the outage of the liquids you carry because:

a. some of the heaviest liquids do not need any
b. tank baffles are not always legal with outage
c. some liquids expand more than others when they get warm
d. you must unload some liquids at a faster rate than others

8. When should the driver of a tanker that has lost its brakes use a truck escape ramp?

a. only when the tank is empty
b. always
c. only if the tank has baffles
d. never

9. If an oncoming vehicle drifts into your lane you should:

a. use no less than one full turn of the steering wheel to avoid it
b. move to the right
c. try to stop rather than turn
d. steer by holding the wheel with one hand

10. Which of these statements about stopping distance is true?

a. total stopping distance is how far you will travel after the brakes are applied at speeds over 30 mph
b. you need about two times as much stopping distance at 40 mph as at 20 mph
c. wet roads can double stopping distance at any speed
d. all of the above are true

11. A traffic emergency requires you to escape to the shoulder or roadside. If possible, coast down to __ mph before using your brakes.

a. 20
b. 30
c. 40
d. 50

12. When you load the small tanks of a cargo tank equipped with bulkheads, you should check your:

a. power usage
b. water content
c. air to fuel ratio
d. weight distribution

13. Baffles in liquid cargo tanks do not usually prevent a(n) __________ surge.

a. side to side
b. top to bottom
c. front to back
d. in and out

14. What does a liquid surge do to the handling of a tanker?

a. it lets you turn corners tighter
b. it raises the wind drag of the rig
c. it rolls easier
d. it can move the truck in the direction that the liquid waves move.

15. When your cargo tank has baffles, what handling effect do you expect?

a. there will be less side to side surge than there is in tanks without baffles
b. there will be less front to back surge than there is for tanks without baffles
c. there will be more slow surge than quick surge
d. non baffles have an effect on handling

16. Hauling liquids in tankers requires special care for two reasons: One reason is the ______ center of gravity.

a. flat
b. wide
c. high
d. offset

17. If you are driving a tanker and need to steer quickly to avoid a hazard, you:

a. will find that tankers are easier to countersteer than most vehicles
b. should not apply the brakes while turning
c. should wrap your thumbs around the steering wheel before starting the steering movement
d. all of the above are true

18. What causes vehicle skids?

a. overacceleration
b. oversteering
c. overbraking
d. all of the above

19. Which of these is the best way to take a curve?

a. slow to a safe speed before entering, then accelerate slightly through the curve
b. slow to a safe speed before entering, then coast through the curve
c. maintain speed until you enter, then brake as you drive through the curve
d. maintain speed until you enter, then downshift to slow down while you are in the curve

20. Empty trucks:

a. have better traction when stopping than full ones
b. require greater stopping distance than full ones
c. need less space ahead than full ones
d. stop quicker if you only use the parking/emergency brake

21. A tank vehicle is defined as a vehicle which transports:

a. Liquid
b. Liquified gas
c. Bulk fertilizer
d. Both A and B above

22. Hauling tank vehicles requires special skills because:

a. The center of gravity is higher
b. The vehicle is top heavy
c. The load's weight is high up off the road
d. All of the above

23. When the tanks are partially filled, the movement of the liquid is called:

a. Surging
b. Waves
c. Splashing
d. Rocking

24. When a bulk tank vehicle is stopping at an intersection which has a slippery surface:

a. The truck could slide into oncoming traffic
b. The liquid movement could push the truck into the intersection
c. The liquid could leak onto the roadway
d. The truck could slide sideways due to rocking

25. The liquid inside the bulk tank can cause a tank truck to roll sideways:

a. When traveling around a curve
b. Even with baffles inside the trailer to slow flow
c. Even when traveling at posted speeds
d. All of the above

26. A baffled tanker is one with:

a. Walls with holes inside the trailer for the liquid to flow through
b. Separate tanks inide the trailer
c. Hollow balls floating in the liquid to slow movement
d. None of the above

27. The driver should pay particular attention to the ______ on smaller tanks:

a. Higher center of gravity
b. Weight distribution
c. Level of fluid
d. All of the above

28. A tank trailer with baffles helps to control:

a. Side to side flow
b. Weight distribution
c. Movement from front to back
d. Total vehicle weight

29. A liquid tank trailer that has no baffles are most often used for:

a. Milk or food products
b. Gasoline
c. Liquid gas
d. Liquid fertilizer

30. The reason a tank trailer should not be loaded completely full is because:

a. Your load may shift more
b. The baffles won't be as effective
c. Liquid expands and can leak out of the trailer
d. The movement is stronger

31. You should observe the posted limits for curves and be aware that:

a. Tank trucks have a higher center of gravity
b. The posted speeds may not be slow enough for a tank truck
c. A rollover can still occur when traveling at posted speeds in a tank truck
d. All of the above

32. A smooth bore tank is another term for:

a. A liquid tank without baffles
b. A liquid tank with baffles
c. A tank made of stainless steel
d. A tank which is portable

33. The amount of liquid you should put into the tank depends on:

a. The amount the liquid will expand in transit
b. The weight or density of the liquid
c. Legal weight limits
d. All of the above

34. Outage is defined as:

a. The process of liquid expansion as it becomes warm
b. The liquid that must be drained to conform to weight limits
c. The loss of power to the hydraulics
d. The loss of headlights on the tractor

35. When driving a smooth bore tanker combination, be especially cautious:

a. While ascending a hill
b. While descending a hill
c. When starting and stopping
d. When loading or unloading