CDL PRACTICE TEST - GENERAL KNOWLEDGE (IDAHO)
11.
A CDL is valid for:
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4 years
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5 years
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3 years
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12.
After starting the engine the coolant temperature should:
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rise gradually.
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rise quickly.
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slowly decrease.
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13.
To warn drivers behind you when you see you'll need to slow down, you should:
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sound your horn.
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flash the brake lights.
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use your headlights.
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14.
When driving on slippery surfaces, you should:
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make turns as quickly as possible.
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change lanes often.
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not pass slower vehicles unless necessary.
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15.
You should be especially alert for drunk drivers:
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in the morning.
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around shopping areas.
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late at night.
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16.
When driving on a long and/or steep downgrade, drivers should:
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release the clutch.
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select an appropriate safe speed, and then use a low gear.
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use a low gear and release the brakes.
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17.
During the vehicle inspection, you should check your clutch for:
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Looseness
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Damage
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All of the above.
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18.
If you triple the speed from 20 to 60 mph the impact and braking distance is:
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6 times greater.
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9 times greater.
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3 times greater.
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19.
Before entering a curve, drivers should:
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drive on the shoulder.
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downshift to the right gear.
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speed up.
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20.
When driving in fog, drivers should:
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use low beams.
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use high beams.
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use the windshield wipers.
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