CDL DOUBLES TRIPLES PRACTICE TEST NORTH DAKOTA
11.
Strong winds can make it difficult to stay in your lane, especially when:
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driving at speeds below 40 mph.
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coming out of tunnels.
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driving alongside other vehicles.
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going into tunnels.
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12.
If the safety relief valve in the air brake system releases air:
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something is wrong.
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this will supply more power to the drive wheels.
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this will supply more power to the brakes.
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the valve is fully operational.
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13.
If your trucks has a high center of gravity, which of the following is true for curves?
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Reduce your speed to a crawl.
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You should travel at the posted speed limit.
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You should slow down, as your truck can roll over at the posted speed limit for the curve.
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None of the above.
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14.
To make the brakes work, air brakes use:
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compressed air.
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hydraulic air.
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nitrogen.
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carbon monoxide.
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15.
How should you brake if your vehicle loses ABS?
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Brake as you always have.
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Stay off the Brake
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Step on and off the brake pedal several times
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Pump the brake repeatedly
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16.
To test your parking brake, do the following:
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Set the parking brake while going downhill.
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Speed up to 15 mph, then set the parking brake.
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Set the parking brake, and gently pull against it in a low gear.
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Speed up to 5 mph, then set the parking brake.
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17.
When should you turn the retarder off?
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when your vehicle has a high center of gravity.
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when the road is slippery.
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when the cargo is prone to shifting.
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when the cargo is heavy.
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18.
To reduce the chance of rollover, you should:
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put the lightest parts of the cargo under the heaviest parts.
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place the cargo as high as possible inside the trailer.
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distributed the cargo as low as possible inside the trailer.
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None of the above.
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19.
Why should you back toward the driver's side?
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You can more easily correct any steering errors.
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You can see better and watch the rear of your vehicle by looking out the side window.
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Using double clutching requires practice.
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All of the above.
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20.
While crossing railroad tracks, you should:
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stop, then look and listen for the train.
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shift down.
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shift up.
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not shift gears.
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