GENERAL KNOWLEDGE CDL TEST COLORADO - PRACTICE TEST

21. Drivers who cannot see others are a dangerous hazard. Be especially alert for all of the following, except:
Pick-up trucks
Rental trucks
Loaded station wagons
Vehicles with frosted windows
22. When the wheels of a trailer lock up, the trailer will tend to swing around. This is more likely to happen when:
the trailer is overloaded.
the trailer is fully loaded.
the trailer is empty or lightly loaded.
None of the above.
23. An anti-lock braking system (ABS):
helps you avoid skids caused by over braking.
helps you avoid wheel lock up.
should help you steer around an obstacle while braking.
All of the above.
24. Wheel and rim problems include:
rust around wheel nuts.
mismatched lock rings.
missing clamps.
All of the above.
25. When driving on wet roads, you should reduce your speed by about:
one-quarter.
one-fifth.
one-half.
one-third.
26. If you are caught in strong winds, you should:
immediately take your foot off the accelerator.
keep a strong grip on the steering wheel and slow down or pull off the roadway.
speed up while keeping a strong grip on the steering wheel.
None of the above.
27. Driving in very hot weather:
can increase tire pressure.
can decrease oil pressure.
can make it difficult to stay in your lane.
should never be done.
28. When inspecting brakes, you should look for:
pads with oil, grease, or brake fluid on them.
shoes worn dangerously thin.
cracked drums.
All of the above.
29. What is Gross Vehicle Weight Rating?
The total weight of a single vehicle, including its load
The total weight of a combination of vehicles excluding the load
The total weight of a combination of vehicles including the load
The value specified by the manufacturer as the loaded weight of a single vehicle
30. During a hazardous materials emergency, you should:
prevent smoking and keep open flames away.
keep everyone away.
warn others of the danger.
All of the above.
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