WY CDL GENERAL KNOWLEDGE TEST - CDL PRACTICE TEST
41.
You must use ________ as the principal way of controlling your speed on downgrades.
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"Maximum Safe Speed"
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the brake pedal
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controlled braking
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the braking effect of the engine
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42.
How many drinks per hour can be handled by the liver?
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About 2 drinks per hour.
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About 1 drink per hour.
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About 3 drinks per hour.
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About 4 drinks per hour.
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43.
Black ice:
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is thick enough that it makes the road look wet.
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is thick enough that it makes the road look dry.
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is a thin layer that is clear enough that you can see the road underneath it.
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None of the above.
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44.
What is an advantage of going right instead of left around an obstacle?
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There is no real advantage.
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If you are blocked on both sides, a move to the right won't force anyone into an opposing traffic lane and a possible head-on accident.
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If an oncoming driver has drifted into your lane, their natural response will be to brake suddenly.
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No one is likely to be passing you on the left, but someone may be driving on the shoulder.
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45.
Which of the following is NOT a good rule for using turn signals?
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Signal well before you turn.
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Cancel your signal after you have turned.
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Signal continuously until you have completed the turn.
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Put your turn signal on after the turn.
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46.
You should always back and turn toward the driver's side:
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unless it means having to go around the block first.
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so you can watch the rear of your vehicle by looking out the side window.
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unless you have someone to help you.
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All of the above.
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47.
When you are prescribed medications, you should:
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also take medications that prevent drowsiness to stay alert.
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stop taking the medication if you notice it is affecting your driving ability.
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ask your doctor if the drug will affect safe driving ability.
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None of the above.
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48.
To prevent fatigue during long trips you should:
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take a cold shower.
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rely on caffeine.
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take frequent breaks.
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All of the above.
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49.
Tar in the road pavement:
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increases the ability to maintain traction on a vehicle.
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frequently rises to the surface in very hot weather.
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can slow down your vehicle.
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does not affect the road surface.
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50.
When crossing railroad tracks, you should:
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stay in your lane.
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shift gears while crossing the tracks.
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apply the parking brakes.
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stop on the tracks.
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