HI CDL COMBINATION PRACTICE TEST

11. The use of brakes on a steep downgrade is:
the main braking factor.
much more effective than the engine braking effect.
a supplement to the braking effect of the engine.
12. If during vehicle inspection a tire is too hot to touch, you should:
remain stopped until the tire cools off.
let air out.
immediately decrease air pressure.
13. Weight that is loaded so there is a high center of gravity:
reduces the chance that the load will shift to the side or fall off.
makes a vehicle easier to handle.
causes greater chance of rollover.
14. One way to prevent hydroplaning is to:
take curves at higher speeds.
have less than 4/32 inch tread depth in every major groove on front tires.
make sure you have enough tread on your tires.
15. If you cannot make a right turn without entering another traffic lane, you should:
turn wide before you start the turn.
turn wide as you complete the turn.
swing wide to the left before starting the turn.
16. Which of the following is NOT part of the procedure to stop a trailer skid?
Not using the hand brake
Recognizing the skid
Using the trailer hand brake to get traction back
17. ABS helps you:
steer gently and smoothly while you are braking.
increase your normal braking capability.
avoid wheel lock up and maintain control of your vehicle when you brake.
18. You are inspecting your vehicle during a trip. What should you do?
Check critical items such as tires, brakes, and lights.
Use your senses to check for problems.
All of the above.
19. Passive railroad crossings:
have at least one traffic control device.
do not have traffic control devices.
should never be crossed using a CMV.
20. If you unlock the pintle hook with the dolly still under the rear trailer:
the brakes could be damaged by the combined forces of the springs and the air pressure.
your vehicle might roll away.
the dolly tow bar may fly up.
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