CDL Practice Tests: Pre-Trip Inspection
Choose A Section:
Go!Which of the following is NOT one of the dash indicators you will look for during your pre-trip inspection?
- Air lines reversed indicator
- Antilock Braking System (ABS) indicator
- Left turn signal indicator
- Four-way emergency flashers
Test that dash indicators work when corresponding lights are turned on:
- Left turn signal
- Right turn signal.
- Four way emergency flashers.
- High-beam headlight.
- Antilock Braking System (ABS) indicator.
Which is the proper procedure for checking the trailer parking brakes?
- Check the angle of the S-cam coming out of the brake chamber
- Gently trying to pull forward with the trailer parking brake on
- All these are correct
- Measure the distance between the parking brake shoe and the drum. Make sure it is less than 1 inch
What are two indications of loose lug nuts?
- Twisted or bent valve stem and over-inflated tires
- Rusty trails or shiny threads
- All these are correct
- Low hub oil level or brakes squeaking
When doing a pre-trip inspection of the power steering, play in the steering wheel should not exceed how much?
- 10 degrees (or about 2 inches on a 20-inch wheel) before the front left wheel barely moves.
- There should be zero degrees of play in the steering wheel
- 30 degrees (or about 6 inches on a 20-inch wheel) before the front left wheel barely moves.
- 20 degrees (or about 4 inches on a 20-inch wheel) before the front left wheel barely moves.
In addition to checking for spare electrical fuses (if equipped), three red reflective triangles and a properly charged and rated fire extinguisher, school bus drivers must also inspect which of the following emergency equipment?
- Emergency flares and flashlight
- None of these are correct
- First aid kit and body fluid cleanup kit
- Tool kit and tire patching kit
In addition to checking for spare electrical fuses (if equipped), three red reflective triangles and a properly charged and rated fire extinguisher, school bus drivers must also inspect the following emergency equipment:
- First Aid Emergency Kit
- Body Fluid Cleanup Kit
What should you check for when checking the landing gear on the trailer?
- Make sure the crank handle is secured and the support frame is not damaged
- Make sure there are no missing parts
- Check that the landing gear is fully raised
- All of these are correct
Which is the proper procedure for checking hydraulic brakes?
- Pump the brake three times and watch the hydraulic pressure gauge to make sure it's building pressure
- Hold the brake pedal down. Make sure the pedal slowly moves all the way to the floor within 10 seconds
- All these are correct
- Pump the brake pedal three times and then hold it down for five seconds. The brake pedal should not move (depress) during the five seconds.
Hydraulic Brake Check (if equipped)
- Pump the brake pedal three times and then hold it down for five seconds. The brake pedal should not move (depress) during the five seconds.
- If equipped with a hydraulic brake reserve (back-up) system, with the key off, depress the brake pedal and listen for the sound of the reserve system electric motor.
- Check that the warning buzzer or light is off.
In addition to checking the lighting indicators listed in Section 10.2 of this manual, school bus drivers must also check which of the following lighting indicators:
- Alternately flashing amber lights indicator, if equipped.
- Alternately flashing red lights indicator.
- All these are correct
- Strobe light indicator, if equipped.
In addition to checking the lighting indicators listed in Section 10.2 of this manual, school bus drivers must also check the following lighting indicators (internal panel lights):
- Alternately flashing amber lights indicator, if equipped.
- Alternately flashing red lights indicator.
- Strobe light indicator, if equipped.
When doing an emergency system check on air brake systems, the tractor parking valve and the trailer parking valve should close (pop out) when the pressure gets below what reading?
- 20-45 psi
- 80 - 100 psi
- 10-30 psi
- 60-80 psi
When doing an emergency system check on air brake systems, the low air warning device (buzzer, light, other) should activate when the pressure gets below what reading?
- 60 psi
- 80 psi
- 100 psi
- 140 psi
About The Pre-Trip Inspectin CDL Exam
The The Pre-Trip Inspectin portion of the CDL Exam is required to obtain your CDL. During the pre-trip inspection, you must show that the vehicle is safe to drive. You may have to walk around the vehicle and point to or touch each item and explain to the examiner what you are checking and why. You will NOT have to crawl under the hood or under the vehicle.
Drivers need to have knowledge of how the actual vehicle(s) that they are conducting the test in operate. The drivers need to be able to explain and demonstrate different checks for the examiner as requested.
Taking the CDL Pre-trip Inspection Test
Class A Pre-trip Inspection Test
If you are applying for a Class A CDL, you will be required to perform a pre-trip inspection in the vehicle you have brought with you for testing. The vehicle must be a combination vehicle, representative of the unit you will be driving and must meet the class weight requirements. If the vehicle is an air brake vehicle, you must first pass the air brake knowledge test. You also must have passed all applicable endorsement knowledge tests that pertain to the vehicle you bring in for testing. Your test will require an inspection of the areas of the vehicle as instructed by your CDL examiner.
Class B and C Pre-trip Inspection Test
If you are applying for a Class B or C CDL, you will be required to perform a pre-trip inspection in the vehicle you have brought with you for testing. The vehicle must be a straight truck, passenger bus or school bus, representative of the vehicle you will be driving and must meet the class weight requirements. If the vehicle is an air brake vehicle, you must first pass the air brake knowledge test. You also must have passed all applicable endorsement knowledge tests that pertain to the vehicle you bring in for testing. Your test will require an inspection of the areas of the vehicle as instructed by your CDL examiner.
TruckingTruth's Pre-Trip Inspection Study Guide
We have an excellent Pre-trip Inspection Study Guide which includes a complete pre-trip inspection with photos and descriptions, numerous pre-trip inspection videos, and a complete vehicle checklist.
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