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WY CDL DOUBLES TRIPLES PRACTICE TEST

11. When connecting to the rear trailer, the trailer height should be:
higher than the center of the fifth-wheel.
lower than the center of the fifth-wheel.
the same height as the fifth-wheel.
None of the above.
12. What is true about tire chains?
You should learn how to put the chains on before you need to do it in snow.
You should watch the official video tutorial by the manifacturer before putting them on.
You must carry the at least 6 chains and extra cross-links.
All of the above.
13. When coupling twin trailers, the more heavily loaded semitrailer should:
be in first position behind the tractor.
have its brakes locked.
be in the rear.
have chocked wheels.
14. Driving in very hot weather:
should never be done.
can make it difficult to stay in your lane.
can increase tire pressure.
can decrease oil pressure.
15. Pre-trip inspections are:
recommended.
required only for trips of more than 100 miles.
required by law
required only for trips of more than 50 miles.
16. Doubles:
are easier to drive than straight trucks.
require more reaction time than straight trucks.
are less likely to rollover than straight trucks.
None of the above.
17. Doubles and triples:
can't be turned suddenly.
have a lower chance of skidding.
can be turned suddently due to the low center of gravity.
can be stopped suddenly due to their weight.
18. Most heavy duty vehicles use ___ air brake systems for safety.
reduced
triple
single
dual
19. If you are carrying a heavy load that is slowing you down, you should:
drive on the shoulder.
keep the vehicle in third gear.
drive in the right lane.
drive in the left lane.
20. A low air pressure warning signal:
is optional on vehicles with air brakes.
is required on all vehicles without air brakes.
is required on vehicles with air brakes.
None of the above.
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