CDL DOUBLES TRIPLES PRACTICE TEST ALASKA
11.
If you experience a loss of hydraulic pressure, you should do all of the following except:
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Pump the brakes
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Put the transmission in Neutral
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Downshift
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12.
To prevent rollover, you should:
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keep the cargo as close to the ground as possible.
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go slowly around turns.
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All of the above.
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13.
Before driving a vehicle with a dual brake brake system, the driver should:
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pump the brake pedal 10 times to build pressure.
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allow time for the air compressor to build up a minimum of 100 psi pressure in both the primary and secondary systems.
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wait at least 10 minutes before driving.
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14.
Watch out for black ice:
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when the temperature is above freezing and the road is dry.
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any time the temperature is below freezing and the road looks wet.
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when it is snowing.
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15.
Driving in very hot weather:
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should never be done.
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can increase tire pressure.
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can decrease oil pressure.
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16.
You are driving on a steep downgrade in the proper low gear. Your "safe" speed is 40 mph. When your speed reaches 40 mph, you should:
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apply the brakes to gradually reduce your speed to 35 mph, and then release the brakes.
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increase your speed to approximately 45 mph, and then apply release the brakes.
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apply the brakes to quickly reduce your speed to 25 mph, and then release the brakes.
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17.
With a dual air brake system:
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each system has its own air tanks, hoses and lines.
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each system shares air tanks.
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each system shares the same lines and hoses.
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18.
If the drive wheels start to skid:
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accelerate slightly to regain control.
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use the brakes to slow down.
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push in the clutch to let them turn freely.
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19.
On any upgrade, _________ – the more you will have to use lower gears to climb hills or mountains.
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the steeper the grade
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the longer the grade
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All of the above.
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20.
Air brakes use ________ to make the brakes work.
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compressed air
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compressed gas cylinders
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compressed gases
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