WA CDL COMBINATION TEST - PRACTICE TEST
11.
To avoid rollovers, you should drive slowly:
|
around corners.
|
|
|
on ramps.
|
|
|
All of the above.
|
12.
When should you use the hand valve to park a combination vehicle?
|
Never.
|
|
|
When parking downhill.
|
|
|
To park at loading docks.
|
13.
The iron trailer supports are up, and the full weight of the trailer is resting on the tractor. Make sure:
|
you are in a low enough gear.
|
|
|
the safety latch is not engaged.
|
|
|
there is enough clearance between the rear of the tractor frame and the landing gear.
|
14.
You are driving on a steep downgrade in the proper low gear. Your "safe" speed is 40 mph. When your speed reaches 40 mph, you should:
|
increase your speed to approximately 45 mph, and then apply release the brakes.
|
|
|
apply the brakes to gradually reduce your speed to 35 mph, and then release the brakes.
|
|
|
apply the brakes to quickly reduce your speed to 25 mph, and then release the brakes.
|
15.
To unlock the fifth wheel, pull the release handle to the _______ position.
|
open
|
|
|
neutral
|
|
|
closed
|
16.
Empty trucks have the best braking. True or False?
|
True.
|
|
|
False.
|
|
|
It depends on the cargo.
|
17.
If you have convex mirrors, be aware that:
|
in a convex mirror objects appears larger than they really are.
|
|
|
objects seem closer than they really are.
|
|
|
everything appears smaller in a convex mirror than it would if you were looking at it directly.
|
18.
Radial and bias-ply tires:
|
should be used together.
|
|
|
should not be used together.
|
|
|
should be used together only when driving in packed snow.
|
19.
Strong winds can make it difficult to stay in your lane, especially when:
|
coming out of tunnels.
|
|
|
going into tunnels.
|
|
|
driving at speeds below 40 mph.
|
20.
Having ABS on only the trailer:
|
still gives you more control over your vehicle during braking.
|
|
|
is very dangerous.
|
|
|
makes the trailer more likely to swing out.
|
GRADE ME
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More