CDL Double-Triple
Trailers Test

0

This is the Commercial Vehicle Driver's License Test covering Double and Triple Trailers.  You will be presented with 40 questions and you must answer 34 questions correctly to pass.  There is no time limit.  You may not go back once you answer a question.  Click the "Start Quiz" button below to begin.  Good luck!

1 / 40

What position should the heaviest trailer be in when pulling 3 trailers?

2 / 40

Select the true statement in regards to driving a truck with triple or double trailers:

3 / 40

For emergency braking when driving a double trailer and having to use your brakes to avoid a collision is to:

4 / 40

Which trailer is more likely to roll over when pulling 3 trailers?

5 / 40

Remember to_____when steering to avoid a crash while driving doubles.

6 / 40

In what position should the converter dolly air tank drain valves and pintle hook be in?

7 / 40

What is the stopping distance for a tractor trailer that is traveling at 55 mph on dry pavement?

8 / 40

Select the action that is not recommended when driving on slipper roads:

9 / 40

Select the true statement in regards to a converter dolly:

10 / 40

Start by___when coupling.

11 / 40

For emergency braking to avoid a crash when driving a double trailer you should:

12 / 40

Double and triple trailers should be driven with care to avoid a rollover or jacknife.

13 / 40

You don't want to use wheel chocks when hooking a combination to a second trailer with no spring brakes. What should you do?

14 / 40

What is the minimum amount of distance you should maintain when driving at 50 mph in ideal conditions with a 100 ft twin trailer combination?

15 / 40

You should_____to uncouple the converter dolly.

16 / 40

Why should you test the tractor protection valve?

17 / 40

How should the pintle hook be when backing a dolly under the second trailer?

18 / 40

How do you secure a second trailer to your combination vehicle?

19 / 40

Which is more likely to tip over due to the crack the whip effect?

20 / 40

The pintle hook should be_____ and the converter dolly air tank drain valve is___when doing a walk around inspection of a triple or double trailer.

21 / 40

Mirrors with a convex surface or "spot" mirrors _____.

22 / 40

In what position should the shut off valves on a the rear of the front trailer be in on a set of double trailers?

23 / 40

Select the true statement in regards to managing the space to the sides:

24 / 40

How do you hook a combination to a second trailer without spring brakes and without using wheel chocks?

25 / 40

When driving with multiple trailers, which one should be right behind the tractor?

26 / 40

Select the true statement about handling triples and doubles:

27 / 40

The crack-the-whip effect is more likely to cause the front trailer to tip over.

28 / 40

Where are shut off valves located on trailers that are doubles or triples?

29 / 40

Select the statement that is true in regards to quick steering movements and triple/double trailers:

30 / 40

Select the true statement in regards to handing triples and doubles

31 / 40

What do you need to do to supply air to the air tranks of the second trailer?

32 / 40

Your rig should be parked on__to uncouple double trailers.

33 / 40

Select the statement that is true in regards to managing space to the sides.

34 / 40

What are the 3 methods for securing a second trailer before coupling?

35 / 40

Select the true statement in regards to quick steering movements and double trailers:

36 / 40

What is the best way to stop all skids?

37 / 40

You should look into the back of the fifth wheel on a dolly to see if it is locked onto the kingpin.

38 / 40

How much space should you see between the lower and upper fifth wheel when checking the coupling of a converter dolly?

39 / 40

How do you make sure the trailer height is correct before coupling?

40 / 40

What is most likely to occur when driving a set of doubles and a set of trailer wheels goes into a skid?

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4/5 - (2 votes)

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