WA CDL PRACTICE TEST - GENERAL KNOWLEDGE

11. Federal, state, and local regulations for commercial vehicles:
only apply to CMV's operated in interstate commerce.
vary from place to place.
do not apply to CMV's operated in intrastate commerce.
12. During the after-trip inspection, if you notice anything affecting safety or potentially leading to a mechanical breakdown, you should:
make a written report.
try to fix the problem yourself.
ask the motor carrier to make a written report.
13. Water in the brakes can cause the brakes to:
overheat.
be weak or apply unevenly.
fade.
14. When should you use the 4-way emergency flashers instead of flashing the brake lights to warn the drivers behind you?
When you are driving very slowly or are stopped.
At night time.
When visibility is poor.
15. When you park your vehicle and turn off the engine:
move the gear shift to first gear, if possible.
activate your right turn signal.
apply the parking brake.
16. Before transporting a sealed load, you must check that:
the load is properly secured.
the cargo is piled up.
the placard numbers and the seal numbers match.
17. On engine start, you should:
check for minimum tread depth.
check the oil level.
make sure the oil pressure gauge is working.
18. When driving a 50-foot truck at 40 mph, your minimum following distance should be:
4 seconds
5 seconds
6 seconds
19. When checking the condition of wheels and rims during the pre-trip inspection, make sure that:
the end of the kingpin is even with the top of the fifth wheel.
no studs, spacers, clamps, or lugs are missing, bent, or broken.
no more than two lug nuts are missing.
20. Which of the following is a clue to a drunk driver?
Not changing lanes
Driving at a constant speed
Waiting too long at a stop
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