CDL PRACTICE TEST (WA) - GENERAL KNOWLEDGE TEST

21. You should downshift:
before exiting a curve.
before starting down a hill or entering a curve.
before starting up a hill.
22. During a walk around inspection, which of the following should you check?
Condition of the front axle.
Shock absorber condition.
All of the above.
23. Over-length loads:
may require special equipment such as "wide load" or flags.
require special transit permits.
All of the above.
24. During a trip you should check:
pressure gauges.
temperature gauges.
All of the above.
25. Emergency lines are often coded with the color ___ to keep from getting them mixed up with the service line.
red.
yellow.
blue.
26. When driving on slippery roads, you should NOT:
brake any harder than necessary.
use the speed retarder.
All of the above.
27. In vehicles with air brakes, the air compressor governor:
controls when the air storage tanks will pump air into the air compressor.
controls when the air compressor will pump air into the air storage tanks.
controls how much air the air compressor will pump into the air storage tanks.
28. Enough tread is especially important in winter conditions. You need at least ________ tread depth on steering axle tires.
2/8 inch
4/32 inch
6/24 inch
29. Before unloading explosive materials, you should:
turn your engine off.
connect heater power sources.
keep the engine running.
30. When driving at night, you should:
look directly at the lights of oncoming vehicles.
put your own high beams on if other drivers don't put their low beams on.
drive slowly enough to see obstacles with your headlights.
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