CDL PRACTICE TEST - GENERAL KNOWLEDGE (SOUTH CAROLINA)
21.
The _______ applies and releases the brakes when you use the brake pedal during normal driving.
|
emergency brake system
|
|
|
parking brake system
|
|
|
trailer brake system
|
|
|
service brake system
|
22.
Road surfaces where water collects can create conditions that cause a vehicle to hydroplane. Which of the following is an indication of standing water?
|
Raindrops on the road
|
|
|
Tire splashes
|
|
|
Clear reflections
|
|
|
All of the above.
|
23.
Which of the following is NOT true about escape ramps?
|
Escape ramps are found on many mountain downgrades.
|
|
|
Escape ramps use a long bed of loose, soft material to slow runaway vehicles.
|
|
|
Escape ramps are made to stop runaway vehicles safely.
|
|
|
Any driver who loses brakes going downhill should avoid using an escape ramp, if possible.
|
24.
Placards must be:
|
turned upright on a point.
|
|
|
in a diamond shape.
|
|
|
readable from all 4 directions.
|
|
|
All of the above.
|
25.
You should reject a vehicle until which of the following gets rectified?
|
Faulty headlights
|
|
|
Faulty windshield wipers
|
|
|
Faulty flashers
|
|
|
All of the above.
|
26.
To check the signal lights, do the following:
|
Turn off all the lights, turn on the stop lights, and turn on the left turn signal lights.
|
|
|
Turn on all the lights, turn off the stop lights, and turn off the left turn signal lights.
|
|
|
Turn on the stop lights, turn on all the lights, and turn on the right turn signal lights.
|
|
|
Turn off all the lights, turn on the right turn signal lights, and turn on the stop lights.
|
27.
Why should you back toward the driver's side?
|
You can see better.
|
|
|
You can watch the rear of your vehicle by looking out the side window.
|
|
|
Backing toward the right side is dangerous.
|
|
|
All of the above.
|
28.
For safety during a trip, you should:
|
shift into a lower gear.
|
|
|
drive on the shoulder of the road.
|
|
|
use your senses to check for problems.
|
|
|
pull off the road and stop.
|
29.
When approaching and driving through a work zone, you should:
|
observe the posted speed limits.
|
|
|
slow down.
|
|
|
use your 4-way emergency flashers or brake lights to warn drivers behind you.
|
|
|
All of the above.
|
30.
Federal, State, and local regulations concerning commercial vehicle weight, securing cargo, and covering loads vary widely. You should obey:
|
Federal regulations
|
|
|
Local regulations
|
|
|
State regulations
|
|
|
All of the above.
|
Next page
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More