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CDL Practice Test: Pre-Trip Inspection

These CDL practice questions are from our High Road Training Program, a CDL test preparation course designed to help you learn the CDL manual.

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CDL Practice Test: Pre-Trip Inspection

Pre-Trip Inspection Questions

Click On The Picture To Begin

Good Luck!

Which of the following is NOT a required safety item?
  • Three red reflective triangles
  • Properly charged and rated fire extinguisher
  • Spare light bulbs
  • Spare electrical fuses (unless equipped with circuit breakers)
This is a question from page 81 - click here to look up the answer

Quote From Page 117 Of The Illinois CDL Manual:

Emergency equipment:

  • Check for spare electrical fuses.
  • Check for three red reflective triangles.
  • Check for a properly charged and rated fire extinguisher.

TruckingTruth's Advice:

You must memorize the required safety equipment and show the examiner where all of these items are located.

Next
Which one of these statements is false:
  • Mirrors and mirror brackets should be mounted with loose fittings
  • Door hinges should be secure
  • All door seals should be intact
  • Doors on the tractor should open and close properly from the outside
This is a question from page 84 - click here to look up the answer

Quote From Page 119 Of The Illinois CDL Manual:

Doors/mirrors:

  • Check that doors are not damaged and that they open and close properly from the outside. Hinges should be secure with seals intact.
  • Check that mirrors and mirror brackets are not damaged and are mounted securely with no loose fittings.

TruckingTruth's Advice:

When checking a door during your pre-trip exam, you should physically open and close the door, checking all necessary items. While demonstrating, you should say:

"The door opens and closes properly, hinges are secure, not cracked, bent, or broken and the door seal is present, not torn, or damaged."

Prev
Next
What is the minimum amount of tread depth allowed on a drive axle or trailer axle?
  • 4/32-inch
  • 2/32-inch
  • 1/2-inch
  • 1-inch
This is a question from page 83 - click here to look up the answer

Quote From Page 119 Of The Illinois CDL Manual:

Tires: The following items must be inspected on every tire:

  • Tread depth - Check for minimum tread depth (4/32-inch on steering axle tires, 2/32-inch on all other tires).
  • Tire condition - Check that tread is evenly worn and look for cuts or other damage to tread or sidewalls. Also, make sure that valve caps and stems are not missing, broken or damaged.
  • Tire inflation - Check for proper inflation by using a tire gauge or by striking tires with a mallet or other similar device.

TruckingTruth's Advice:

When checking a drive tire, tell the examiner:

"I'm checking the drive tire to make sure the tread is evenly worn and there are no abrasions, bulges, or cuts to the tread or sidewalls. The tread must have a minimum depth of 2/32 of an inch. The tires must be properly inflated according to factory specifications. I'm also making sure there is proper spacing between the dual tires and the space is free from foreign objects."

Prev
Next
On an air brake system, when should the low air warning activate?
  • Before pressure drops below 40 psi
  • Before pressure drops below 60 psi
  • Before pressure drops below 80 psi
  • Before pressure drops below 20 psi
This is a question from page 82 - click here to look up the answer

Quote From Page 117 Of The Illinois CDL Manual:

Low-air warning devices (buzzer, light, flag) should activate before air pressure drops below 60 psi.

TruckingTruth's Advice:

The low-air warning should activate BEFORE 60psi. They are very picky with the wording on this. Don't say "about" 60 psi or "around" 60 psi, it must be "before" 60 psi.

Prev
Next
When checking the battery and battery box on a coach bus, you should:
  • Wherever located, check that battery(s) is secure, connections are tight, and cell caps are present
  • Check that battery box and cover or door is not damaged and is secure
  • Battery connections should not show signs of excessive corrosion
  • All of these answers are correct
This is a question from page 87 - click here to look up the answer

Quote From Page 122 Of The Illinois CDL Manual:

Battery/box:

- Wherever located, check that battery(s) is secure, connections are tight, and cell caps are present.
- Battery connections should not show signs of excessive corrosion.
- Check that battery box and cover or door is not damaged and is secure.

Prev
Next
Which of the following do not have to be checked during the pre-trip inspection exam?
  • High-beam headlights
  • Reflectors
  • All of these things must be checked
  • Brake lights
This is a question from page 82 - click here to look up the answer

Quote From Page 118 Of The Illinois CDL Manual:

Lights/reflectors: Check that all external lights and reflective equipment are clean and functional. Light and reflector checks include:



       
  • Clearance lights (red on rear, amber elsewhere)

  •    
  • Headlights (high and low-beams); taillights

  •    
  • Turn signals

  •    
  • 4-way flashers

  •    
  • Brake lights

  •    
  • Red reflectors (on rear) and amber reflectors (elsewhere)



Note: Checks of brake turn signal and 4-way flasher functions must be done separately.

TruckingTruth's Advice:

While it may get a bit repetitive, during the pre-trip exam you need to point out and identify every light and reflector on both the truck and the trailer. Make sure all lights and reflectors are functioning properly, are clearly visible, properly mounted and secured, and not cracked or broken.

Prev
Next
Which of the following statements is incorrect about inspecting the emergency exits on a coach bus?
  • Check that any emergency exit warning devices are working
  • They should open and close securely from the outside
  • All exits should operate smoothly
  • Make sure all emergency exits are not damaged
This is a question from page 87 - click here to look up the answer

Quote From Page 122 Of The Illinois CDL Manual:

Emergency exits:

- Make sure all emergency exits are not damaged, operate smoothly, and close securely from the inside.
- Check that any emergency exit warning devices are working.

Prev
Next
What is the proper order for checking the clutch and gearshift?
  • Depress the clutch, start the engine, move the gearshift lever into the neutral position, release the clutch slowly
  • Depress the clutch, place gearshift lever in the neutral position, start the engine and release the clutch slowly
  • Start the engine, depress the clutch, place gearshift lever into the neutral position, release clutch slowly
  • Place gearshift lever in the neutral position, start the engine, then depress the clutch
This is a question from page 81 - click here to look up the answer

Quote From Page 116 Of The Illinois CDL Manual:

Clutch/gearshift:

  • Depress clutch.
  • Place gearshift lever in neutral (or park, for automatic transmissions).
  • Start engine, then release clutch slowly.
Prev
Finish
Please select an option
[3,1,2,2,4,3,2,2]
8

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