AL CDL GENERAL KNOWLEDGE TEST - CDL PRACTICE TEST

41. Which of the following statements about drugs is true?
Some "controlled substances" are allowed to reduce fatigue.
All over-the-counter drugs are safe to use while on duty.
Use of drugs can lead to traffic accidents.
Possession and use of a drug given to a driver by a doctor is never permitted.
42. Heights posted at bridges and overpasses:
are always accurate.
can be incorrect.
are always incorrect.
None of the above.
43. B:C type fire extinguishers are suitable for dealing with:
tire fires.
wood fires.
cloth and paper fires.
electrical fires and burning liquids.
44. Over-length loads:
may require special equipment such as "wide load" or flags.
require special driving care.
require special transit permits.
All of the above.
45. Air storage tanks:
are installed in the first tank the air compressor pumps air to.
use parts of the service brake systems to stop the vehicle in a brake system failure.
pump air into the air storage tanks.
hold compressed air for the brakes.
46. When backing, you should back and turn toward the driver's side:
so you can back in a straight line.
so you can see better.
so you can back on a curved path.
so you can see the shoulder of the road.
47. ABS (anti-lock braking system):
always shortens your stopping distance.
keeps your brakes from locking up when you brake hard.
increases your normal braking capability.
lets you drive faster.
48. When backing a truck you should:
look straight ahead.
always rely on your mirrors.
back and turn toward the right side.
get out and walk around the vehicle before you begin to back.
49. Convex mirrors:
make objects appear larger than they really are.
show a wider area than flat mirrors.
make things appear closer than they really are.
All of the above.
50. When driving at night, you should dim your lights within ______ of an oncoming vehicle.
300 feet.
400 feet.
500 feet.
250 feet.
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