CDL GENERAL KNOWLEDGE TEST (LOUISIANA) - PRACTICE TEST

41. Before operating the vehicle, the driver should:
rely on the last vehicle inspection and skip the pre-trip inspection.
should not review the vehicle inspection report and immediately try to find any vehicle defects.
review the last vehicle inspection report.
None of the above.
42. If a car suddenly cuts in front of you, creating a hazard, you should NOT:
slow down to prevent a crash.
stay close behind the car and honk your horn.
signal and change lanes to avoid the car, if possible.
All of the above.
43. When you need to brake, you should warn the drivers behind:
by changing lanes.
by flashing your brake lights.
by making gestures.
by turning on the 4-way emergency flashers.
44. The use of brakes on a steep downgrade is:
a supplement to the braking effect of the engine.
the main braking factor.
much more effective than the engine braking effect.
dangerous, and should be avoided at all costs.
45. What should you do at an accident scene, among other things, to help prevent another accident?
Call for assistance.
If you are stopping to help, park in the area immediately around the accident.
Stay in your vehicle and file an accident report.
Put on your 4-way emergency flashers.
46. Retarders:
apply their braking power whenever you push on the accelerator.
help prevent accidents by applying extra braking power to the non-drive wheels.
help slow a vehicle and reduce brake wear.
All of the above.
47. ABS (anti-lock braking system):
always shortens your stopping distance.
keeps your brakes from locking up when you brake hard.
lets you drive faster.
increases your normal braking capability.
48. A steering wheel play of more than ___ degrees can make it hard to steer.
20
10
45
60
49. To test the parking brake:
step on and off the brake pedal to reduce air pressure.
gently try to pull forward with the parking brake on.
turn off the engine.
check that all shut-off valves are in the open position.
50. Hydroplaning:
can occur at speeds as low as 30 mph.
only occurs at extremely high speeds.
only happens when tire pressure is higher than normal.
never occurs at speeds below 40 mph.
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