CDL Pre-Trip
Inspection Test


This is the Commercial Vehicle Driver's License Test covering Pre-Trip Inspection.  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

Select which is not a mandatory emergency equipment:

2 / 40

While completing the 2nd component of the air brake check you are required to turn the electrical power on, begin fanning off the air pressure by rapidly relasing and apply the foot brake and _____.

3 / 40

To inspect the______you should pump the pedal 3 times and hold it down for 5 seconds while making sure the pedal doesn't move during those 5 seconds.

4 / 40

When checking for_____you are looking for dripping fluids or puddles on the ground below the transmission or engine.

5 / 40

The sliding mechanism and locking device for a tandem axle on trailers is:

6 / 40

In the slide mechanism of the sliding fifth wheel, this object should have no missing pins or be loose when fully engaged.

7 / 40

If there is rust around the nuts, what may it indicate?

8 / 40

The object that doesn't get checked at the side of the trailer is the:

9 / 40

Select which is not an engine compartement belt:

10 / 40

Rods, connecting links, and arms from the steering box to the wheel are a part of the:

11 / 40

The gauge that needs to come up to normal levels after starting the engine within a few seconds is _____.

12 / 40

What are you checking when looking at the lubrication level on a dipstick?

13 / 40

You are checking the_______when looking at the dipstick to see if the lubrication is at the safe operating range or above the refill line.

14 / 40

This should be cleaned and then adjusted properly while inside the cab.

15 / 40

The brake pushrod should not move more than____for manual slack adjusters.

16 / 40

The container for the mechanism that transforms the steering column action into wheel action is:

17 / 40

These tires should have a minimum tread depth of 4/32 inches.

18 / 40

This object is required to be checked for damage, that it's secure, and strong enough to handle any cargo.

19 / 40

This item does not need to be checked during the cab check.

20 / 40

This item should not be rusted, bent, or damaged and centered over evenly spaced tires and dual wheels.

21 / 40

This object should not be spliced, cut, chafed, or worn through to allow steel braid to show.

22 / 40

What do you do first during step 3 of starting the engine and inspecting the inside of the cab?

23 / 40

When inspecting the_____you pump the pedals 3 times and then hold it down for 5 seconds feeling for no movement to occur.

24 / 40

Puddles or dripping fluids from the underside of the transmission and engine may indicate:

25 / 40

This object releases the fifth wheel locking jaw to allow uncoupling.

26 / 40

What will occur as a result of failing to perform all 3 components of the air brake check?

27 / 40

This item should be firmly attached the to frame, be solid, and clear of objects:

28 / 40

This object should be clean with no obstructions, illegal stickers or damage to the glass.

29 / 40

What gauge on the dashboard indicates electrical system charging rate?

30 / 40

This gauge will indicate if the generator or alternator is charging:

31 / 40

This should have no illegal stickers, dirt, obstructions, or damage to the glass.

32 / 40

Within 3 minutes, this gauge pressure should build to 90 psi from 50 psi.

33 / 40

The minimum tread depth for steering axle tires is:

34 / 40

_____ create a little above 90 degree angle between the adjuster arm and push rod when the brakes are released and no less than 90 degrees when the brakes are applied.

35 / 40

You should check that the _____are secure, caps are on tight, and is not leaking.

36 / 40

What is the normal operating range for a truck's oil pressure?

37 / 40

How do you check the coolant level?

38 / 40

While completing the 1st component of the air brake check you are required to fully push down on the foot brake and _____.

39 / 40

This component should be checked that it is solid, securely bolted to the tracture frame, and clear of objects.

40 / 40

Check that the parking brake will hold by____when the parking brake is engaged and the trailer brakes released if not a combination vehicle.

Your score is

The average score is 77%

5/5 - (1 vote)

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