OHIO CDL COMBINATION PRACTICE TEST

11. When driving trucks with trailers, drivers should:
avoid making sudden movements with the steering wheel.
make quick lane changes.
push the brake pedal to the floor when braking.
12. To be in the proper position for coupling, the fifth wheel should:
tilted up towards the rear of the tractor.
have its jaws closed around the shank of the kingpin.
be tilted down towards the rear of the tractor.
13. You are coupling a semi-trailer to your tractor but have not yet backed under. The trailer is at the right height when:
it will be raised slightly when the tractor is backed under it.
the locking jaws are around the head of the kingpin.
the end of the kingpin is even with the top of the fifth wheel.
14. Which of the following is not a reason for covering cargo?
To protect the cargo from weather
To prevent other drivers from looking at the cargo
To protect people from spilled cargo
15. If you have convex mirrors, be aware that:
everything appears smaller in a convex mirror than it would if you were looking at it directly.
objects seem closer than they really are.
in a convex mirror objects appears larger than they really are.
16. Blocking _______________ to keep it from sliding.
is used in the front, back, and/or sides of a piece of cargo
goes from the upper part of the cargo to the floor
is used only in the back of a piece of cargo
17. Never drive with landing gear only part way up. Why?
It must be exactly 5 feet off the ground.
It may catch on railroad tracks.
It may be harder to use.
18. When a vehicle goes around a corner, the rear wheels:
follow the same path as the front wheels.
follow a different path than the front wheels.
will turn freely.
19. If you try to couple when the trailer is too low:
the tractor could roll away.
it might not couple correctly.
the tractor may strike and damage the trailer nose.
20. If there is a cargo fire in a van or box trailer, you should:
enlist the help of bystanders.
keep the doors shut.
open the doors, especially if your cargo contains hazardous materials.
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