DOUBLES TRIPLES TEST WY - CDL PRACTICE TEST
11.
If a vehicle is equipped with ABS, when you start the engine:
|
the ABS indicator light on the dash should come on and then turn off.
|
|
|
the spring brakes will come on.
|
|
|
the wheels will lock up.
|
|
|
the trailer emergency brakes will come on.
|
12.
It is safer to drive over (rather than to avoid) which of the following?
|
Plastic containers
|
|
|
Paper and cloth sacks
|
|
|
Cardboard boxes
|
|
|
None of the above.
|
13.
If the drive wheels start to skid:
|
push in the clutch to let them turn freely.
|
|
|
use the brakes to slow down.
|
|
|
accelerate slightly to regain control.
|
|
|
All of the above.
|
14.
When you discover a fire, if the trailer doors are hot you should not open them because:
|
opening the doors lets air in and may make the fire flare up.
|
|
|
you should use the fire extinguisher on the door.
|
|
|
with air many fires do less damage.
|
|
|
the temperature of the trailer should not be changed in any way.
|
15.
Rough acceleration can cause:
|
tire damage.
|
|
|
damage electrical and brake lines.
|
|
|
mechanical damage.
|
|
|
All of the above.
|
16.
With an engine fire, you should NOT:
|
shoot foam from the vehicle’s underside.
|
|
|
open the hood.
|
|
|
turn the engine off as soon as possible.
|
|
|
None of the above.
|
17.
Which of the following is NOT a reason for hydraulic brake failure?
|
Stab braking
|
|
|
Brake fade on long hills
|
|
|
Loss of hydraulic pressure
|
|
|
All of the above.
|
18.
To start moving without rolling back, you should:
|
apply the trailer brake hand valve.
|
|
|
partly engage the clutch before you take your right foot off the brake.
|
|
|
put on the parking brake whenever necessary.
|
|
|
All of the above.
|
19.
You should flash your brake lights to warn drivers behind you when:
|
you see a bus stops in the roadway ahead to unload passengers.
|
|
|
you see a hazard that will require slowing down.
|
|
|
you see you'll need to slow down.
|
|
|
All of the above.
|
20.
When checking the engine compartment in a vehicle inspection, you should check all of the following except:
|
Coolant level in radiator
|
|
|
Shock absorbers
|
|
|
Engine oil level
|
|
|
Windshield washer fluid level
|
GRADE ME
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More