ND CDL TANKER PRACTICE TEST
11.
On
a tractor-trailer equipped with a trailer brake hand
valve, the hand valve can be used to:
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prevent movement of cargo.
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reduce the chance of the front wheels skidding.
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keep from rolling back.
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hold compressed air.
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12.
To know how much space you should keep in front of you:
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estimate how many seconds it would take you to reach the vehicle ahead.
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estimate how many vehicle lengths there are between you and the vehicle ahead.
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wait until the vehicle ahead of you passes a clear landmark, then count off the seconds until you reach the same spot.
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None of the above.
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13.
If the engine catches fire, you should:
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avoid shooting foam from the vehicle's underside.
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turn off the engine as soon as you can.
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pull into a service station and notify the emergency services.
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open the hood as soon as you can.
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14.
Your vehicle may take longer to stop:
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if the tank is empty.
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if you are driving in hot weather.
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if the road is dry.
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if the tank is full of dense liquid.
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15.
While you are driving a tanker, the front wheels begin to skid. Which of these is most likely to occur?
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Excessive heat will cause chemical changes in the brake lining, which reduce friction.
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You will keep moving forward no matter how you steer.
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The truck will roll over.
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Your tires will fail soon.
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16.
When coupling, you should:
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make sure the sliding fifth-wheel is locked.
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make sure the trailer kingpin is bent.
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make sure the trailer wheels are not chocked.
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be aware that wrong coupling and uncoupling can be very dangerous.
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17.
Road surfaces where water collects can create conditions that cause a vehicle to hydroplane. Which of the following is an indication of standing water?
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Tire splashes
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Raindrops on the road
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Clear reflections
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All of the above.
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18.
If the vehicle ahead of you is smaller than yours:
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it can probably stop faster than you can.
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it will take the same amount of time to stop.
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it will usually take longer to stop.
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All of the above.
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19.
If your brakes fail while you are driving on a downgrade, you should:
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immediately start looking outside your vehicle for something to stop it.
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take the least hazardous escape route you can.
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use an escape ramp if it's available.
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All of the above.
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20.
Which of the following is not a type of retarder?
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Hydraulic
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Exhaust
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Pressure
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Electric
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