CDL DOUBLES TRIPLES PRACTICE TEST NEVADA
11.
Which of the following statements about doubles/triples is true?
|
A safe speed on a curve for a single trailer combination vehicle may be too fast for a double/triple.
|
|
|
Doubles/triples are more stable than other CMVs.
|
|
|
Doubles/triples may have to go faster around corners than single trailer combination vehicles.
|
|
|
All of the above.
|
12.
You must have at least 4/32 inch tread depth in every major groove on front tires and at least ___ inch on other tires.
|
4/32
|
|
|
1/32
|
|
|
2/32
|
|
|
3/32
|
13.
Off-tracking is:
|
when the tires lose their contact with the road and have little or no traction.
|
|
|
when a vehicle towing a trailer skids, and the trailer pushes the towing vehicle from behind until it spins the vehicle around.
|
|
|
when a vehicle makes a turn and the rear wheels of the trailer end up driving in a different path than the tractor and the front wheels of the trailer.
|
|
|
None of the above.
|
14.
When driving in heavy traffic, the safest speed is:
|
half the speed of the other vehicles.
|
|
|
faster than the other vehicles.
|
|
|
slower than the other vehicles.
|
|
|
the same speed as the other vehicles.
|
15.
Combination vehicles usually require _________ single commercial vehicles.
|
the same level of skill as
|
|
|
less driving skill than
|
|
|
more driving skill than
|
|
|
None of the above.
|
16.
As you approach off ramps and on ramps, remember:
|
that braking and turning at the same time can be a dangerous.
|
|
|
that the posted speed limit may be safe for automobiles, but may not be safe for larger vehicles.
|
|
|
to slow down before you get on the curved part of an off ramp or on ramp.
|
|
|
All of the above.
|
17.
You should do an after-trip inspection:
|
once a month.
|
|
|
at least once a week.
|
|
|
after each trip.
|
|
|
after each stop.
|
18.
When coupling double trailers, if the second trailer does not have spring brakes, to set the trailer emergency brakes you should:
|
1. Drive the tractor close to the trailer 2. Connect the emergency line 3. Charge the trailer air tank 4. Disconnect the emergency line.
|
|
|
1. Connect the emergency line 2. Drive the tractor close to the trailer 3. Disconnect the emergency line 4. Charge the trailer air tank.
|
|
|
1. Connect the emergency line 2. Charge the trailer air tank. 3. Drive the tractor close to the trailer 4. Disconnect the emergency line.
|
|
|
1. Disconnect the emergency line 2. Drive the tractor close to the trailer 3. Charge the trailer air tank 4. Connect the emergency line.
|
19.
If there is a cargo fire in a van or box trailer, you should:
|
open the doors, especially if your cargo contains hazardous materials.
|
|
|
enlist the help of bystanders.
|
|
|
keep driving until you reach help.
|
|
|
keep the doors shut.
|
20.
Regardless of its size, cargo should have at least ___ tie-downs.
|
3
|
|
|
4
|
|
|
2
|
|
|
1
|
GRADE ME
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More