PENNSYLVANIA CDL PRACTICE TEST - GENERAL KNOWLEDGE
41.
Stab braking:
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should never be used.
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involves applying the brakes all the way, and releasing them when wheels lock up.
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involves steady pressure on the brake pedal without locking the wheels.
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involves applying the brakes as hard as you can without locking the wheels.
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42.
Hanging meat in a refrigerated truck:
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creates a low center of gravity.
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can be a very unstable load.
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will not affect safe driving ability.
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should never be transported.
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43.
Which of these is true about fire extinguishers?
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The fire extinguisher must be properly charged and rated.
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Check that the extinguisher is the correct type for the class of fire that may occur.
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You must study the instructions printed on the extinguisher before you need it.
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All of the above.
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44.
Which of the the following statements about fatigued or drowsy driving is true?
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Fatigued drivers are usually more alert because they are aware risk of being involved in an accident is higher.
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Most people are less alert between 12 pm and 3 pm.
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Fatigued drivers may be slower in making critical decisions.
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All of the above.
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45.
If you are driving a vehicle with manual transmission that requires double clutching to change gears, the first step of the basic method for shifting up is to:
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Push in the clutch and shift into a higher gear at the same time.
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Pump the brakes and release the clutch.
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Release the accelerator, push in the clutch and shift to neutral at the same time.
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Release the clutch and press the accelerator at the same time.
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46.
Placards must be:
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turned upright on a point.
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readable from all 4 directions.
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in a diamond shape.
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All of the above.
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47.
The header board, if equipped, should:
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can be dangerous.
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block the forward movement of any cargo you carry.
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not be used in case of a crash or emergency stop.
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never be used for cargo.
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48.
If you get stuck on the railroad tracks, the first thing you should do is:
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try to move your vehicle until you see the train.
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scream for help.
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immediately get out of the cab and move away from the tracks.
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stay in your vehicle and call 911.
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49.
Which of these statements is true?
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Dual tires that come in contact with each other provide better traction.
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A tread depth of 2/32 of an inch is safe for steering axle tires.
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Radial and bias-ply tires should not be used together on the same vehicle.
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Tires of mismatched sizes can used on the same vehicle.
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50.
When a vehicle goes around a corner, the rear wheels:
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will turn freely.
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will lock up.
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follow a different path than the front wheels.
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follow the same path as the front wheels.
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