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CDL Practice Test: Pre-Trip Inspection

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CDL Practice Test: Pre-Trip Inspection

Pre-Trip Inspection Questions

Click On The Picture To Begin

Good Luck!

Which of these statements about checking the oil pressure gauge is correct?
  • The pressure gauge should show normal pressure immediately after engine start
  • None of these answers are correct
  • After starting the engine, check that the pressure gauge shows increasing oil pressure
  • After starting the engine, check that the pressure gauge shows declining oil pressure
This is a question from page 81 - click here to look up the answer

Quote From Page 117 Of The Illinois CDL Manual:

Oil pressure gauge:

  • Make sure oil pressure gauge is working.
  • Check that pressure gauge shows increasing or normal oil pressure or that the warning light goes off.
  • If equipped, oil temperature gauge should begin a gradual rise to the normal operating range.

TruckingTruth's Advice:

What to tell the examiner:

I'm checking the oil pressure gauge to make sure pressure is building to normal operating range.

Next
During your pre-trip inspection, you must check the oil level and:
  • Demonstrate how to add oil to the engine
  • Show how to test the oil for water
  • Indicate where the dipstick is located
  • Rub some oil between your fingers to make sure the oil is free of metal shards and foreign debris
This is a question from page 80 - click here to look up the answer

Quote From Page 116 Of The Illinois CDL Manual:

Oil level:

  • Indicate where dipstick is located.
  • See that oil level is within safe operating range. Level must be above refill mark.

TruckingTruth's Advice:

What to say to the examiner:

"The dipstick should be pulled to show that the oil level is above the refill mark and in safe operating range."

Prev
Next
When inspecting suspension components, you must:
  • Check the components on the tractor only
  • Checking suspension components is not required
  • Check the components on the trailer only
  • Check the components for every axle
This is a question from page 83 - click here to look up the answer

Quote From Page 118 Of The Illinois CDL Manual:

Springs/air/torque:

  • Look for missing, shifted, cracked or broken leaf springs.
  • Look for broken or distorted coil springs.
  • If vehicle is equipped with torsion bars, torque arms or other types of suspension components, check that they are not damaged and are mounted securely.
  • Air ride suspension should be checked for damage and leaks.

Mounts:

Look for cracked or broken spring hangers, missing or damaged bushings and broken, loose or missing bolts, Ubolts or other axle mounting parts. (The mounts should be checked at each point where they are secured to the vehicle frame and axle(s)).

Shock absorbers:

Check that shock absorbers are secure and that there are no leaks.

Note: Be prepared to perform the same suspension components inspection on every axle (power unit and trailer, if equipped).

Prev
Next
While inspecting the brake chamber, you should:
  • Check for air leaks
  • Look for cracks and dents
  • Make sure it's properly mounted and secure
  • You should do all of these things
This is a question from page 83 - click here to look up the answer

Quote From Page 118 Of The Illinois CDL Manual:

Brake chambers: Check that brake chambers are not leaking, cracked or dented and are securely mounted.

TruckingTruth's Advice:

After pointing out the location of a brake chamber, tell the examiner:

"I am now inspecting the brake chamber to make sure it's not cracked, bent, or broken. I'm also making sure it is properly mounted and secure and is not leaking."

Prev
Next
Which of the following is NOT a required safety item?
  • Properly charged and rated fire extinguisher
  • Three red reflective triangles
  • Spare electrical fuses (unless equipped with circuit breakers)
  • Spare light bulbs
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.

Prev
Next
How much air loss is allowed in 1 minute on a combination vehicle with no brakes applied?
  • No more than 4 psi
  • No more than 5 psi
  • No more than 3 psi
  • No more than 2 psi
This is a question from page 82 - click here to look up the answer

Quote From Page 117 Of The Illinois CDL Manual:

With the engine running, build the air pressure to governed cut-out (100-125 psi). Shut off the engine, turn the electrical power on, chock your wheels, if necessary, release the tractor protection valve and parking brake (push in), fully apply the foot brake and hold it for one minute. Check the air gauge to see if the air pressure drops more than 3 pounds in 1 minute (single vehicle) or 4 pounds in 1 minute (combination vehicle) with brake applied. When brake is unapplied, air pressure drops more than 2 pounds in 1 minute with a single vehicle and 3 pounds in 1 minute in a combination vehicle.

TruckingTruth's Advice:

Be sure to memorize how much air loss is acceptable when the service brakes are applied and not applied.

Prev
Next
Which of the following statements is incorrect about inspecting the emergency exits on a coach bus?
  • All exits should operate smoothly
  • Check that any emergency exit warning devices are working
  • Make sure all emergency exits are not damaged
  • They should open and close securely from the outside
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
How much air loss is allowed in 1 minute on a single vehicle without any brakes being applied?
  • No more than 3 psi
  • No more than 1 psi
  • No more than 2 psi
  • No more than 4 psi
This is a question from page 82 - click here to look up the answer

Quote From Page 117 Of The Illinois CDL Manual:

With the engine running, build the air pressure to governed cut-out (100-125 psi). Shut off the engine, turn the electrical power on, chock your wheels, if necessary, release the tractor protection valve and parking brake (push in), fully apply the foot brake and hold it for one minute. Check the air gauge to see if the air pressure drops more than 3 pounds in 1 minute (single vehicle) or 4 pounds in 1 minute (combination vehicle) with brake applied. When brake is unapplied, air pressure drops more than 2 pounds in 1 minute with a single vehicle and 3 pounds in 1 minute in a combination vehicle.

TruckingTruth's Advice:

Be sure to memorize how much air loss is acceptable when the service brakes are applied and not applied.

Prev
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