1.
If you are stopped on an incline, how can you start moving without rolling back?
Shift to neutral
|
|
Fully engage the clutch
|
|
Apply the parking brake
|
|
Aggressively pump the accelerator
|
2.
On
a tractor-trailer equipped with a trailer brake hand
valve, the hand valve can be used to:
hold compressed air.
|
|
prevent movement of cargo.
|
|
reduce the chance of the front wheels skidding.
|
|
keep from rolling back.
|
3.
A high center of gravity:
means you'll have better traction.
|
|
is less dangerous in curves.
|
|
helps the vehicle be more stable while turning.
|
|
means your vehicle is more likely to tip over.
|
4.
To avoid a hazard:
stopping is always the best thing to do.
|
|
changing lanes is always the best thing to do.
|
|
steering away from what is ahead may be the best thing to do.
|
|
driving on the shoulder of the road is always the best thing to do.
|
5.
When you see you will need to slow down, you can warn drivers behind you by:
slamming on the brakes.
|
|
making gestures.
|
|
turning on the right turn signal.
|
|
tapping the brakes a few times.
|
6.
When transporting chlorine in cargo tanks, you must have _______ in the vehicle.
an approved cell phone
|
|
approved goggles
|
|
an approved gas mask
|
|
5 reflective triangles
|
7.
The height of a vehicle's center of gravity is important for safe handling. Why?
Trucks with a high center of gravity have better traction.
|
|
A high center of gravity means you are less likely to tip over.
|
|
Trucks with a high center of gravity can roll over at the posted speed limit for a curve.
|
|
All of the above.
|
8.
If corrosive materials leak during transportation, the parts of the vehicle exposed to corrosives must:
be washed with acid.
|
|
be washed with water.
|
|
be washed with oil.
|
|
be left to air dry.
|
9.
Retarders:
increase fuel efficiency.
|
|
improve traction.
|
|
help to increase brake pressure.
|
|
can be noisy and may not be permitted everywhere.
|
10.
Which of the following vehicles is most likely to turn over?
Triple trailer
|
|
5 axle tractor semitrailer
|
|
3 axle tractor semitrailer
|
|
65 ft. conventional double
|
Next page
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More
Rate This Free Test