CDL General Knowledge Practice Test 4

Question 1

Which of the following are potential suspension system defects?

Accepted Answer

All of the above

Answer

All the listed items are critical suspension system defects. Leaking shock absorbers reduce the vehicle's stability and control. Cracked or broken spring hangers compromise the structural integrity of the suspension. A broken leaf in a spring weakens the spring's ability to support the load and absorb shocks, all of which impair safe vehicle operation.

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

When backing a large vehicle, the 'stop' signal is the most crucial hand signal to agree upon with a helper. This signal ensures that the driver can immediately halt the vehicle's movement in case of an unforeseen obstacle or danger, preventing potential accidents or damage.

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

When stopped on a one-way or divided highway, traffic approaches from a single direction. To provide ample warning, reflectors should be placed 10 feet, 100 feet, and 200 feet behind the vehicle, in the lane of approaching traffic. This sequence gives drivers sufficient time to react and safely maneuver around the stopped 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

When a tailgater is behind you, increasing your following distance from the vehicle ahead creates a larger buffer zone. This allows you to brake more gradually if needed, reducing the chances of the tailgater having to brake suddenly and potentially causing a rear-end collision.

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

If you feel drowsy while driving, the only truly effective solution is to pull over and get some sleep. Temporary measures like coffee, open windows, or loud music do not address the underlying fatigue and can lead to dangerous micro-sleeps or impaired reaction times, increasing the risk of an accident.

CDL Practice Test

CDL Practice Test

CDL General Knowledge Practice Test 4