FREE VA CDL Doubles Triples Practice Test (2024)

1. Regardless of its size, cargo should have at least ___ tie-downs.

2. When driving a double or triple, you should:

drive in the left lane whenever possible.
increase your following distance.
decrease your following distance.

3. If you hear a loud loud "bang" and the steering feels "heavy", you should:

pump the brakes until the vehicle has slowed down.
brake hard and pull off the road.
hold the steering wheel firmly and stay off the brake.

4. You can release dolly brakes:

by opening the service line valve.
by opening the air tank petcock.
by closing the emergency line valve.

5. When going down grades, you should:

downshift to a lower gear.
put the transmission in Neutral.
shift up.

6. How does ABS help you?

ABS replaces your normal brakes and helps you to stop faster.
ABS helps you avoid wheel lock up and maintain control when you brake hard on slippery surfaces.
ABS makes stab braking more effective.

7. What factors can cause brakes to fade?

Excessive heat and brakes out of adjustment.
Dirt roads and in unpaved yards.
Slippery surfaces and shaded areas.

8. If the safety relief valve in the air brake system releases air:

something is wrong.
this will supply more power to the brakes.
the valve is fully operational.

9. Strong winds can make it difficult to stay in your lane especially when driving:

10. To prevent rollover, you should:

place the cargo near the rear of the trailer.
put the lightest parts of the cargo under the heaviest parts.
keep the cargo as close to the ground as possible.

VIRGINIA DOUBLES TRIPLES PRACTICE CDL TEST