SOUTH CAROLINA CDL PRACTICE TEST - GENERAL KNOWLEDGE

31. When crossing or entering traffic with a heavy vehicle:
you should allow more room if your vehicle is not loaded.
you may need a much larger gap to enter traffic than you would in a car.
you can count on other drivers to move out of your way so you can safely enter the flow of traffic.
None of the above.
32. When backing a trailer, you should:
turn the steering wheel in the opposite direction of the turn.
try to position your vehicle so you can back on a curved path.
turn the steering wheel toward the direction you want to go.
avoid using the brakes.
33. When driving a modern truck, the gear you should be in before starting down a hill is usually_____ the gear required to climb the same hill.
lower than
the same as
higher than
None of the above.
34. Another name for front-end header boards is:
containerized racks.
head belt.
cargo stopper.
headache racks.
35. The use of brakes on a steep downgrade is:
the main braking factor.
much more effective than the engine braking effect.
dangerous, and should be avoided at all costs.
a supplement to the braking effect of the engine.
36. Which of the following does alcohol impair?
Depth perception
Muscle coordination
Reaction time
All of the above.
37. In some states, move-over laws require drivers to:
slow and change lanes when approaching a roadside incident.
obey the directions given by police officers at railroad crossings.
submit to a chemical test to determine their BAC when requested by a peace officer.
All of the above.
38. Which of the following statements about stopping distance is true?
Braking distance is the distance your vehicle will travel, in ideal conditions, while you are braking.
Perception distance is the distance your vehicle travels, in ideal conditions, from the time your eyes see a hazard until your brain recognizes it.
Reaction distance is the distance you will continue to travel, in ideal conditions, before you hit the brakes.
All of the above.
39. If a load is placed on one side of the trailer:
a rollover is more likely.
making turns may be easier.
the steering axle weight will be too light to steer safely.
your brakes won't work.
40. If you're carrying hazardous materials and are stopped at a truck stop, you should:
leave the shipping papers in the driver’s door pouch or on the driver’s seat.
leave the shipping papers on the dashboard in clear view.
tuck the shipping papers under your windshield wiper.
keep the shipping papers with you.
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