GENERAL KNOWLEDGE CDL TEST MISSOURI - PRACTICE TEST

41. When driving, do NOT:
assume that vehicles, pedestrians or bicyclists see you whenever you are about to pass them.
try to help out other drivers by signaling when it is safe to pass.
warn the drivers behind by flashing your brake lights if you see a hazard that will require slowing down.
42. If you triple the speed from 20 to 60 mph the impact and braking distance is:
9 times greater.
3 times greater.
6 times greater.
43. Which of the following statements about drinking alcohol is TRUE?
A 5-ounce glass of 12 percent wine contains the same amount of alcohol as a 12-ounce glass of 5 percent beer.
Alcohol only affects people who are not used to drinking.
Coffee and a little fresh air will help a drinker sober up.
44. If you cannot see well enough while driving in cold weather, you should:
turn your defroster on and slow down until you can see again.
stop safely and fix the problem.
keep driving and check that the wiper blades press against the window hard enough to wipe the windshield clean.
45. In a vehicle with a dual air brake system:
both systems typically operate the regular brakes on the rear axle.
one system supplies air to the trailer.
each system has its own air tanks.
46. The use of brakes on a steep downgrade is:
much more effective than the engine braking effect.
the main braking factor.
a supplement to the braking effect of the engine.
47. What is an important thing to remember about emergency braking?
Your natural response (hitting the brakes) is never the right solution.
You should never use stab braking.
Pushing down on the brake pedal as hard as you can will only keep the wheels locked up and cause a skid.
48. When feeling fatigued you should:
stop and rest.
drink a cup of coffee.
continue driving.
49. Driving dry bulk tanks requires special care. Why?
The load can shift.
They have a high center of gravity.
All of the above.
50. When driving in heavy traffic, the safest speed is:
the speed of traffic.
the posted speed limit.
slower than the speed of other traffic.
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