TN CDL GENERAL KNOWLEDGE TEST - CDL PRACTICE TEST
11.
Retarders:
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can be noisy and may not be permitted everywhere.
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increase fuel efficiency.
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help to increase brake pressure.
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improve traction.
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12.
Foundation brakes are used:
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only with the right wheels.
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at each wheel.
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only with the front wheels.
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only with the rear wheels.
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13.
Cargo tie-downs are used to:
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keep cargo from shifting or falling.
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prevent freezing.
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prevent right-turn accidents.
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prevent skidding.
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14.
The trailer hand valve should be used:
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only to test the trailer brakes.
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only in an emergency.
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only on slippery surfaces.
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only when applying the brakes hard.
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15.
During a hazardous materials emergency, you should:
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warn others of the danger.
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keep everyone away.
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prevent smoking and keep open flames away.
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All of the above.
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16.
When inspecting brakes, you should look for:
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pads with oil, grease, or brake fluid on them.
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shoes worn dangerously thin.
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cracked drums.
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All of the above.
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17.
Checking the engine compartment during the seven-step inspection does NOT include checking:
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the battery fluid level.
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the engine oil temperature.
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the engine oil level.
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the power steering fluid level.
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18.
When inspecting your vehicle, before checking the engine compartment be sure that:
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all tires are properly inflated.
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the fire extinguisher is properly charged and rated.
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all lights are working.
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the parking brakes are on and/or wheels chocked.
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19.
Make sure you have enough tread on your tires. You must have at least ________ tread depth in every major groove on front tires.
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1 inch
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2/32 inch
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4/32 inch
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16/32-inch
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20.
If your truck has automatic transmission, you should downshift:
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whenever road conditions allow.
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after entering a curve.
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when going down grades.
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when you need to accelerate.
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