CDL GENERAL KNOWLEDGE TEST (SC) - PRACTICE TEST
41.
When you check your tires, you should look for all of the following EXCEPT:
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Dual tires that come in contact with parts of the vehicle
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Tread separation
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Mismatched sizes
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Tires from different manufacturers
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42.
Which of the following is NOT true?
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ABS won't compensate for bad brakes.
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ABS only comes into play when a wheel would have locked up because of over braking.
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ABS won't compensate for poor brake maintenance.
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ABS will change the way you normally brake.
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43.
Fully loaded trucks require greater stopping distances than empty vehicles. True or False?
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True, but only on wet surfaces.
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True.
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True, but only if the truck was built after 1998.
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False.
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44.
Emergency equipment is:
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optional.
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only required when transporting hazardous materials.
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encouraged.
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required.
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45.
What should you do if your vehicle starts hydroplaning?
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Apply the brakes and countersteer to regain control of the vehicle.
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Release the accelerator and push in the clutch to let the wheels turn freely.
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Leave the road completely.
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Accelerate slightly, then push in the clutch to slow down.
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46.
Which of the following is a common cause of truck fires?
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Under-inflated tires and duals that touch.
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Short circuits due to loose connections.
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loose fuel connections.
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All of the above.
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47.
Hydroplaning:
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never occurs at speeds below 40 mph.
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only occurs at extremely high speeds.
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can occur at speeds as low as 30 mph.
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only happens when tire pressure is higher than normal.
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48.
When traveling with Division 1.1, 1.2, or 1.3 explosives, do not park within _____ of a building.
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300 feet
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50 feet
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200 feet
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150 feet
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49.
On
a tractor-trailer equipped with a trailer brake hand
valve, the hand valve can be used to:
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hold compressed air.
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keep from rolling back.
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reduce the chance of the front wheels skidding.
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prevent movement of cargo.
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50.
Antifreeze:
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helps the engine only under hot conditions.
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doesn't help the engine in any way.
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helps the engine under hot conditions as well as cold conditions.
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helps the engine only when the temperature is below freezing.
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