CDL PRACTICE TEST (ID) - GENERAL KNOWLEDGE TEST

41. The application pressure gauge:
protects the tank and the rest of the system from too much pressure.
shows how much air pressure is being applied to the brakes.
tells you how much pressure is in the air tanks.
42. Objects that have fallen on the road:
can be a danger to your tires and wheel rims.
can be hazards.
All of the above.
43. The minimum amount of tread for rear tires is:
1/64 of an inch
1/32 of an inch
2/32 of an inch
44. The Gross Vehicle Weight Rating (GVWR) is:
the value specified by the manufacturer as the loaded weight of a vehicle, including cargo and trailers.
the value specified by the manufacturer as the loaded weight of a single vehicle.
the value specified by the manufacturer as the loaded weight of a combination vehicle.
45. At highway speeds, good drivers look at least _______ ahead.
1 mile
1/4 mile
150 feet
46. Name two situations in which it may not be safe to operate your vehicle at legal maximum weights.
In heavy traffic or at night
During bad weather or in mountains
Over bridges or through tunnels
47. Which of the following factors is NOT used to determine your safe speed when going down a long steep downgrade?
Total weight of the vehicle and cargo
Weather
Time of day
48. When you push the brake pedal down, air brakes work:
after about 15 seconds.
after a short delay.
immediately.
49. Under-loaded front axles can:
cause poor traction.
make the steering axle weight too light to steer safely.
All of the above.
50. When backing a trailer, you should turn the steering wheel to the right to make the trailer go left (or vice versa). Once the trailer starts to turn, you should:
turn the wheel more  in the direction you want to go.
turn the wheel the other way to follow the trailer.
keep backing up.
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