SD CDL DOUBLES TRIPLES TEST - PRACTICE TEST
11.
When driving double and triple trailers, drivers should:
|
allow more following distance.
|
|
|
look far ahead.
|
|
|
steer gently and go slowly around corners.
|
|
|
All of the above.
|
12.
Driving in very hot weather:
|
can decrease oil pressure.
|
|
|
can increase tire pressure.
|
|
|
can make it difficult to stay in your lane.
|
|
|
should never be done.
|
13.
If an item placed on a flatbed trailer is 7 feet long, it should have __ tie-downs.
|
2
|
|
|
1
|
|
|
3
|
|
|
7
|
14.
When backing a trailer, you should turn the steering wheel to the right to make the trailer go left (or vice versa). Once the trailer starts to turn, you should:
|
turn the wheel more in the direction you want to go.
|
|
|
turn the wheel the other way to follow the trailer.
|
|
|
keep backing up.
|
|
|
None of the above.
|
15.
To reduce the chance of rollover, you should:
|
distributed the cargo as low as possible inside the trailer.
|
|
|
place the cargo as high as possible inside the trailer.
|
|
|
put the lightest parts of the cargo under the heaviest parts.
|
|
|
None of the above.
|
16.
When coupling twin trailers, the more heavily loaded semitrailer should:
|
be in the rear.
|
|
|
be in first position behind the tractor.
|
|
|
have its brakes locked.
|
|
|
have chocked wheels.
|
17.
Because of the "crack-the-whip" effect, doubles and triples:
|
are much slower than other combination vehicles.
|
|
|
are more likely to turn over than other combination vehicles.
|
|
|
are more likely to run out of gas than other combination vehicles.
|
|
|
can go much faster than other combination vehicles.
|
18.
Which of the following vehicles is most likely to turn over?
|
5 axle tractor semitrailer
|
|
|
Triple trailer
|
|
|
3 axle tractor semitrailer
|
|
|
65 ft. conventional double
|
19.
Before connecting the converter dolly to the rear trailer, make sure that:
|
the shut-off valves at the rear of the first trailer are open.
|
|
|
the trailer height is slightly lower than the center of the fifth-wheel.
|
|
|
the kingpin rests on the fifth-wheel.
|
|
|
the locking jaws rest on the kingpin.
|
20.
When driving with more than one trailer, the _______ trailer should be the first one behind the tractor.
|
shortest
|
|
|
lightest
|
|
|
heaviest
|
|
|
longest
|
GRADE ME
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More