GENERAL KNOWLEDGE CDL TEST MINNESOTA - PRACTICE TEST

21. Which of the following is a key steering system part?
Anchor plate
Tie rod
U-bolts
Leaf spring
22. Pre-trip inspections are:
required only for trips of more than 100 miles.
required by law
recommended.
required only for trips of more than 50 miles.
23. You must use ________ as the principal way of controlling your speed on downgrades.
"Maximum Safe Speed"
controlled braking
the braking effect of the engine
the brake pedal
24. Why should you put the starter switch key in your pocket during the pre-trip inspection?
So you don't lose it.
You will need it to inspect the trailer.
So no one moves the vehicle while you are inspecting underneath it.
All of the above.
25. When driving, you should:
use your mirrors only when changing lanes.
check your mirrors regularly.
avoid using your mirrors to spot overtaking vehicles.
avoid checking your mirros often.
26. Heights posted at bridges and overpasses:
can be incorrect.
are always incorrect.
are always accurate.
None of the above.
27. The Johnson bar is a valve that:
works the trailer brakes.
is installed in the first tank the air compressor pumps air to.
keeps air from going out if the air compressor develops a leak.
reduces the braking pressure to a safe level.
28. With an engine fire, you should NOT:
open the hood.
shoot foam from the vehicle’s underside.
turn the engine off as soon as possible.
None of the above.
29. An advantage of going right instead of left around an obstacle is that:
There is no real advantage.
By turning right, you will force other drivers into an opposing traffic lane.
Turning right comes more natural in emergency situations.
No one is likely to be driving on the shoulder, but someone may be passing you on the left.
30. Which of the following is a common cause of truck fires?
Short circuits due to loose connections.
Under-inflated tires and duals that touch.
loose fuel connections.
All of the above.
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