VEHICLE INSPECTION CDL TEST NEBRASKA

11. What should you do to test your vehicle's low air pressure warning signal?
Release the parking brake valve and the tractor protection valve and reduce the air pressure by stepping on and off the brake pedal.
With the engine running, put the vehicle in a forward gear and attempt to drive forward.
Pump the brakes until the air pressure drops below 80 psi.
With the key in the "on" or "battery charge" position, rapidly apply and release the foot brake.
12. During the vehicle inspection, when asked to check the oil level you should:
indicate where the dipstick is located.
make sure the engine is off.
see that the oil level is within safe operating range.
All of the above.
13. You pump the brake pedal three times, then hold it down for five seconds, making sure that the pedal does not move. You are checking:
the hydraulic brakes.
the air brakes.
the service brake.
the parking brake.
14. Which of the following is checked in a pre-trip inspection?
Steering wheel
Wiper blades
Mirrors and windshield
All of the above.
15. A vehicle inspection should be done:
once every month.
differently each time, so you are less likely to forget something.
by a helper whenever possible.
the same way each time so you are less likely to forget something.
16. During the vehicle inspection test, after starting the engine the coolant temperature should:
rise quickly.
decrease gradually.
decrease quickly.
rise slowly.
17. Which of the following engages and disengages the engine from the drive train?
The front axle
The drive shaft
The foot brake
The clutch
18. During the pre-trip inspection, when starting the engine you should:
check the coolant level in the radiator.
fasten your safety belt.
press the brake pedal.
listen for unusual noises.
19. If loose or missing, _______ may cause movement between the frame and fifth wheel assembly.
electric connectors
safety chains
mounting bolts
locking pins
20. Which of the following is NOT checked in a pre-trip inspection?
Brake controls
The amount of fuel in the vehicle
Cargo securement
Safety equipment
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