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CDL Quiz 18

1. Which tires should have a minimum tread depth of 4/32 of an inch?
Steering axle tires
Non-drive axle tires
Spare tires
All of the above

2. What do you inspect to make sure that all are present and free of cracks and distortions and show no signs of looseness such as rust trails or shiny threads?
Lug nuts
Spacers
Rims
None of the above

3. Which belt should you make sure is securely mounted and adjusts and latches properly?
Water pump
Safety / seat
Air compressor
Steering

4. If the wheel has a sight glass, check that the oil level is adequate. Otherwise, look for leaks around the
Hydraulic brakes.
Battery
Rims
Hub oil / axle seals.

5. What should be clean with no dirt, illegal stickers, obstructions or damages to the glass?
Headlights
Lighting indicators
Windshield and mirrors
None of the above

6. Gas or hydraulic devices that cushion the vehicle ride and stabilize the vehicle and should be secure without leaks are called
Mounts
Brakes
Springs
Shock absorbers.

7. Which of the following disengages the engine from the drive train so the vehicle won’t move and reduces the load on the starter motor?
Drive shaft
Clutch / gearshift
Parking brake
Water pump

8. You are making sure that hoses and lines are not cut, chafed, spliced, or worn, and not tangled, pinched, or dragged against tractor parts. What are you inspecting?
Locking jaws
Air / electric lines
Splash guards
Door / ties / lifts

9. If the container is not part of the pressurized system, to check the coolant level,
Remove the container cap and check the level visible.
Inspect the reservoir sight glass.
You should do neither of the above.
You can do either of the above.

10. Which of the following disengages the engine from the drive train so the vehicle won’t move and reduces the load on the starter motor?
Clutch / gearshift
Water pump
Parking brake
Drive shaft

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