CDL PRACTICE TEST - GENERAL KNOWLEDGE (SOUTH CAROLINA)
31.
If during vehicle inspection a tire is too hot to touch, you should:
|
immediately decrease air pressure.
|
|
|
let air out.
|
|
|
make sure there is enough engine oil on the tires.
|
|
|
remain stopped until the tire cools off.
|
32.
If your vehicle is equipped with a retarder, you should turn it off:
|
when you are driving in heavy traffic.
|
|
|
when you need to accelerate suddenly.
|
|
|
whenever the road is wet, icy, or snow covered.
|
|
|
when you are running late.
|
33.
You are driving a 30-foot vehicle at 35 mph. You should allow at least ______ of following distance between your vehicle and the vehicle in front of you.
|
4 seconds
|
|
|
2 seconds
|
|
|
3 seconds
|
|
|
6 seconds
|
34.
If you are feeling sleepy, you should:
|
pull off the road and rest.
|
|
|
slow down.
|
|
|
get some coffee.
|
|
|
drive faster.
|
35.
You should avoid driving through flowing water of deep puddles if possible. If not, you should:
|
wait until the engine has cooled before crossing the water.
|
|
|
set out reflective triangles to warn other traffic.
|
|
|
gently apply the brakes, increase engine rpm and cross the water while keeping light pressure on the brakes.
|
|
|
press the accelerator and increase the engine and gear speed to the rpm required by road conditions.
|
36.
If the road is icy, you should:
|
put the transmission in neutral and stay off the brake until the vehicle has slowed down, then pull off the road and stop.
|
|
|
maintain your current speed and stop driving as soon as you can safely do so.
|
|
|
reduce speed to a crawl and stop driving as soon as you can safely do so.
|
|
|
All of the above.
|
37.
ABS:
|
allows you to brake harder.
|
|
|
should only be used on dry roads.
|
|
|
replaces your normal brakes.
|
|
|
is an addition to your normal brakes.
|
38.
If you must stop on a one-way or divided highway, you should place warning devices _______ toward the approaching traffic.
|
3, 15 and 45 feet
|
|
|
5, 50 and 500 feet
|
|
|
5, 25 and 50 feet
|
|
|
10, 100 and 200 feet
|
39.
Hydroplaning occurs when:
|
tires lose traction.
|
|
|
you release the accelerator too soon.
|
|
|
you push in the clutch to let the drive wheels turn freely.
|
|
|
tire pressure is high.
|
40.
When driving on wet roads, you should reduce your speed by about:
|
one-third.
|
|
|
one-half.
|
|
|
one-fifth.
|
|
|
one-quarter.
|
Next page
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More