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MONTANA DOUBLES TRIPLES PRACTICE CDL TEST

11. Exhaust system parts should NOT:
rub against fuel system parts.
be loose.
rub against tires.
All of the above.
12. Empty trucks require _____ stopping distances because empty vehicles have ______ traction.
greater; more
less; more
greater; less
less; less
13. If your vehicle is hydroplaning, you should:
stay off the brake.
put the vehicle in reverse.
apply the brakes.
speed up.
14. Doubles/triples are:
usually faster than most CMVs.
less stable than other CMVs.
easier to drive than other CMVs.
more stable than other CMVs.
15. If your vehicle is equipped with air brakes, loss of air pressure in the emergency line will cause:
the springs to put on the brakes.
the trailer emergency brakes to come on.
the trailer supply valve to open.
the vehicle to slide back and forth.
16. Before each trip, you must make sure:
the cargo has a high center of gravity.
the cargo is balanced and secured.
your cargo obscures your view to the sides.
the truck is overloaded.
17. If you experience a loss of hydraulic pressure, you should do all of the following except:
Downshift
Use the parking brake
Put the transmission in Neutral
Pump the brakes
18. The posted speed for a curve that may be safe for a straight truck:
is never safe for a double or triple.
is likely to be safe for a double or triple.
can be ignored when driving a double or triple.
could be too fast for a double or triple.
19. If you unlock the pintle hook with the dolly still under the rear trailer:
your vehicle might roll away.
the dolly tow bar may fly up.
steam and boiling water can spray under pressure.
the brakes could be damaged by the combined forces of the springs and the air pressure.
20. When driving double and triple trailers, drivers should:
look far ahead.
allow more following distance.
steer gently and go slowly around corners.
All of the above.
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