CDL Pre-Trip Inspection Test 4 – Classic Mode

This is CDL Pre-Trip Inspection Test 4 in our original Classic Mode. Simply click in your answer to each CDL practice test question. When you’re finished, check your score and results. You can reset the test and retake it as needed.

This test is based on CDL Manual Section 11.1.2 External Inspection/Trailer

Start Test #4 Now

1. For manual slack adjusters, the brake pushrod should not move more than:

A 1 inch (with the brakes released) when pulled by hand.
B 1-2 inches (with the brakes set).
C No movement is allowed
D All vehicles built since 1994 have automatic slack adjusters and don't require checking

2. What releases the fifth wheel locking jaw so the trailer can be uncoupled?

A Apron
B Release arm
C Locking pins
D Draw-bar

3. When checking the landing gear of the trailer (when tractor is connected) make sure it is:

A Down and handle secure
B Raised and handle hanging
C Raised and handle secure
D Halfway down and low gear engaged

4. There should be minimum tread depth of 2/32 inch for:

A Steering axle tires
B Spare tires
C Non-drive axle tires
D Non-steer axle tires

5. This system should be checked for damage and signs of leaks such as rust or carbon soot:

A Exhaust
B Coupling
C Suspension
D None of the above

6. What should you check so that it is solid, clear of objects and securely bolted to the tractor frame?

A Platform
B Apron
C Kingpin
D Catwalk

7. When inspecting for cracks, broken welds, holes or other damage to the longitudinal frame member, cross members, box, and floor you are inspecting the:

A Frame
B Catwalk
C Platform
D Fuel tank

8. Connecting links, arms, and rods from the steering box to the wheel are part of this:

A Power steering fluid
B Steering play
C Steering box
D Steering linkage

9. What should not be bent, damaged, or rusted through and should be evenly centered, with the dual wheels and tires evenly separated?

A Spacers or Budd Spacing
B Lug nuts
C Rims
D All of the above

10. What is the minimum tread depth for the steering axle tires:

A 2/32
B 4/32
C 16mm
D None of the above

End of Test #4

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