VT CDL COMBINATION PRACTICE TEST

11. 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.
12. Glad hands are:
securement devices.
coupling devices.
warning devices.
13. When driving on slippery surfaces, you should:
change lanes often.
make turns as quickly as possible.
not pass slower vehicles unless necessary.
14. If your vehicle is equipped with air brakes, loss of air pressure in the emergency line will cause:
the vehicle to slide back and forth.
the springs to put on the brakes.
the trailer emergency brakes to come on.
15. When backing a tractor under a trailer, you should:
always use the lowest reverse gear.
back at an angle.
stop before when the kingpin is locked into the fifth wheel.
16. After coupling the trailer, begin raising the landing gear by using:
the low gear range.
the crank handle.
the high gear range.
17. If you discover a fire, before opening trailer doors you should:
have a helper open the doors.
feel the doors to see if they are hot.
use the fire extinguisher on the doors.
18. In your mirror, you see a car approaching from the rear. The next time you check your mirror, you don't see the car. If you wish to change lanes, you should:
wait until you are sure the car isn't in your blind spot.
assume the car left the roadway and change lanes as normal.
ease into the other lane slowly so the other car can get out of the way.
19. Which of the following makes a rollover more likely?
Driving quickly around turns
Keeping the load centered on your rig
Keeping the cargo as close to the ground as possible
20. The service line is also called:
pressure line or signal line.
control line or signal line.
signal line or air line.
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