CDL GENERAL KNOWLEDGE TEST (AK) - PRACTICE TEST
41.
Class A:B:C fire extinguishers are designed to work on:
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electrical fires.
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burning liquids.
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All of the above.
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42.
Older trailers do not have spring brakes. If the air supply leaks away:
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the ABS won't work properly.
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there will be no emergency brakes.
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the trailer will stop normally.
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43.
To correct a drive-wheel braking skid, you should stop braking and:
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countersteer.
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accelerate slightly.
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keep your foot off the clutch.
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44.
What three things add up to total stopping distance?
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Reaction distance + braking distance
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Perception distance, reaction distance and braking distance
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Braking distance + stopping distance
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45.
If the drive wheels begin to spin, you should:
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apply your brakes all the way.
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accelerate smoothly and change gears as necessary.
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take your foot off the accelerator.
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46.
Your driver license doesn't have the hazardous materials endorsement. You can drive a vehicle that carries hazardous materials if:
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you are transporting hazardous materials for less than 50 miles.
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one of your passengers has the hazardous materials endorsement.
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the vehicle does not require placards.
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47.
To prevent fire, during the en route inspection you should check the tires, wheels, and truck body for signs of:
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ice.
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heat.
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front-wheel skids.
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48.
Use your four-way emergency flashers:
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when parked at the side of the road.
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to warn drivers behind you that people are working on the road.
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All of the above.
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49.
Which of the following is NOT TRUE?
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In many states, spill protection for covered cargo is a requirement.
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You should regularly inspect the contents of sealed loads.
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You should cover cargo to protect it from the weather.
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50.
Before loading or unloading any flammable liquids, you should:
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start the engine.
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turn off the engine.
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turn on the headlights.
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