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KS CDL PRACTICE TEST - GENERAL KNOWLEDGE

41. Emergency lines are often coded with the color ___ to keep from getting them mixed up with the service line.
yellow.
red.
white.
blue.
42. You should schedule trips:
between the hours of 6 a.m. and 6 p.m.
for the hours you are normally awake.
between the hours of 11 a.m. and midnight.
between the hours of 9 a.m. and 10 p.m.
43. In newer vehicles with air brakes, you put on the parking brake:
placing the transmission in Park.
moving the orange push-pull lever to the right.
using a diamond-shaped, yellow, push-pull control knob.
using a P-shaped, yellow control knob.
44. It is safer to drive over (rather than to avoid) which of the following?
Cardboard boxes
Plastic containers
Paper and cloth sacks
None of the above.
45. Cargo should be properly covered:
to protect people from spilled cargo.
to protect the weather from the cargo.
to block your view or someone else’s.
All of the above.
46. Before driving a vehicle with a dual air system, allow time for the air compressor to build up a minimum of ____ pressure in both the primary and secondary systems.
25 psi
100 psi
50 psi
75 psi
47. If brakes fail on a long downgrade, you should:
set the parking brake.
turn off the engine as soon as you.
pump the brake pedal 3 times.
use an escape ramp if it is available.
48. Retarders:
help slow a vehicle.
reduce the need for using your brakes.
reduce brake wear.
All of the above.
49. Skids caused by acceleration can usually be stopped by:
coming to a complete stop.
taking the foot off the accelerator.
applying the brakes firmly.
speeding up.
50. The wheels of a large combination vehicle are more likely to lock up when:
you are traveling in very hot weather.
the vehicle is heavily loaded.
the vehicle is lightly loaded.
the trailer has new tires.
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