NEBRASKA CDL PRACTICE TEST - GENERAL KNOWLEDGE

11. Front brake limiting valves were used to:
reduce exhaust emissions.
reduce the chance of the front wheels skidding on slippery surfaces.
reduce your speed so further braking or shifting is not required.
prevent overheating of the front tires.
12. Which of the following is true about high beams?
High beams should be used when it is safe and legal to do so.
You should use them when you are not within 50 feet of an approaching vehicle.
They should be used only if low beams suddenly stop working.
Using them seriously cuts down on your ability to see ahead.
13. Glad hands are:
warning devices.
coupling devices.
electronic devices.
securement devices.
14. When starting your vehicle, oil pressure should come up to normal:
within seconds.
in about two minutes.
in about a minute.
within 5 minutes of driving.
15. When you have to back, you should always try to back toward the driver's side because:
backing toward the left side is more dangerous.
you can see better and watch the rear of your vehicle out the side window.
it feels more natural.
None of the above.
16. If a vehicle is equipped with ABS, when you start the engine:
the wheels will lock up.
the spring brakes will come on.
the ABS indicator light on the dash should come on and then turn off.
the trailer emergency brakes will come on.
17. Which of the following statements about driving in cold weather is true?
Brakes will never fade or fail from excessive heat caused by using them too much.
An engine cannot overheat when the weather is very cold.
You should use windshield washer antifreeze.
Exhaust system leaks are less dangerous in cold weather.
18. An empty truck requires _________ a full truck.
the same stopping distance as
less stopping distance than
a greater stopping distance than
This is irrelevant.
19. During the vehicle inspection, when checking the tires you should:
ensure that valve caps are missing.
check for the minimum tread depth (4/32 on all tires).
ensure the middle of the tires is more worn than the outside.
ensure that the tread is evenly worn.
20. If you see a cardboard box ahead in your lane, you should:
avoid it without making sudden, unsafe moves.
slow down to a crawl, inch your vehicle forward and attempt to nudge the box out of your way.
stop, get out of your vehicle, and pull the box off of the road before driving on.
None of the above.
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