PENNSYLVANIA CDL PRACTICE TEST - GENERAL KNOWLEDGE

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