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MD CDL DOUBLES TRIPLES TEST - PRACTICE TEST

11. What is Gross Vehicle Weight?
The total weight of a single vehicle, excluding its load
The total weight of a single vehicle, including its load
The total weight of the cargo
The total weight of a combination of vehicles excluding the load
12. You should do an after-trip inspection:
after each stop.
at least once a week.
once a month.
after each trip.
13. When you back under a trailer:
use lowest reverse gear.
back the tractor slowly.
make sure the trailer brakes are locked.
All of the above.
14. Move-over laws require drivers to _________ when approaching an emergency vehicle stopped on the roadside or a work zone.
sound their horn
stop
slow down and change lanes
change direction
15. The best advice for driving in fog is:
don't drive.
drive slowly in the left lane of traffic.
use high beams.
use low beams.
16. Fully loaded rigs:
are much more likely to roll over than empty rigs.
are just as likely to roll over as empty rigs.
are less likely to roll over than empty rigs.
None of the above.
17. When coupling double trailers, you can secure the second trailer by:
chocking the wheels.
setting the trailer emergency brakes.
using the trailer spring brakes.
All of the above.
18. For a cargo fire in a box trailer, you should:
keep the doors shut.
open the doors immediately and use the fire extinguisher.
wait 10 minutes before opening the doors.
use the fire extinguisher on the doors.
19. "Bobtail" tractors are:
heavily loaded trailers.
tractors with a tank.
tractors without semitrailers.
tractors with two trailers.
20. If there is a cargo fire in a van or box trailer, you should:
keep driving until you reach help.
keep the doors shut.
open the doors, especially if your cargo contains hazardous materials.
enlist the help of bystanders.
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