CDL General Knowledge Practice Test 4

Question 1

Which of the following are potential suspension system defects?

Accepted Answer

All of the above

Answer

Leaking shock absorbers

Answer

Cracked or broken spring hangers

Answer

Broken leaf in a spring

Question 2

When using a helper for backing, what is the most important hand signal that you and the helper should agree on?

Accepted Answer

Stop

Answer

Turn harder left

Answer

Turn harder right

Answer

Go slower

Question 3

Where should you place your reflectors when stopped on a one-way or divided highway?

Accepted Answer

10', 100', 200' toward approaching traffic

Answer

100' ahead, 100' behind and 10' toward approaching traffic

Answer

10', 50', 100' toward approaching traffic

Answer

10' ahead, 10' behind and 100' behind your vehicle

Question 4

Which of the following approaches is advised for dealing with tailgaters?

Accepted Answer

Increase your following distance by getting farther away from the vehicles ahead of you

Answer

Quickly change your lane

Answer

Speed up

Answer

Flash your brake lights

Question 5

If you feel yourself becoming drowsy when you are driving, you should:

Accepted Answer

Get off the road and get some sleep

Answer

Drink coffee or other product that contains caffeine

Answer

Open the window to let air in

Answer

All of the above

Question 6

How long does it take a typical tractor-trailer to clear a double railroad track?

Accepted Answer

15 seconds

Answer

7 seconds

Answer

1 minute

Answer

30 seconds

Question 7

If you have to turn quickly to avoid a crash, which of the following is the best approach?

Accepted Answer

Turn only as much as needed, then counter steer when you have passed the obstacle

Answer

Turn sharply, then brake

Answer

Apply brakes aggressively to slow vehicle down, then turn

Answer

Turn sharply to the right

Question 8

If you have an electrical equipment fire or a gasoline or oil fire, you can____?

Accepted Answer

Use a type A:B:C or B:C fire extinguisher

Answer

Use a type B:C fire extinguisher only

Answer

Use water

Answer

Use a type D fire extinguisher only

Question 9

Which of the following statements about alcohol is TRUE?

Accepted Answer

Time is the only method that works to sober you up

Answer

Drinking black coffee and taking a cold shower will help sober you up.

Answer

Most people can drink 2 beers without affecting their driving skills

Answer

Two shots of whiskey contains more alcohol than 2 cans of beer

Question 10

If you are transporting cargo, you should inspect the cargo and securing devices

Accepted Answer

Before the trip, within 50 miles after beginning the trip, and at least every 150 miles or 3 hours

Answer

Within the first 50 miles of driving

Answer

Before the trip

Answer

During every driving brake on the trip