ND CDL Air Brakes Practice Test
16.
When driving in a construction zone, if a construction worker is near the road, you should:
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further reduce your speed.
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maintain a constant speed.
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speed up.
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come to a complete stop.
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17.
If are being followed closely, you should:
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change lanes quickly.
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decrease your following distance.
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increase your following distance.
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flash your brake lights.
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18.
The safety valve installed in the first tank the air compressor pumps air is set to open:
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if there is too little pressure.
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at 30 psi.
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every 15 minutes.
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if there is too much pressure.
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19.
How should you apply the brakes when going down a steep downgrade?
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Apply the brakes when you reach the bottom of the downgrade.
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Apply the brakes as hard as you can without locking the wheels.
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You should not brake, and only use engine braking to prevent brake failure.
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Apply the brakes whenever you reach your safe speed, until your speed has been reduced to 5 mph below your safe speed.
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20.
The ________ brake system applies and releases the brakes when the driver uses the brake pedal during normal driving.
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anti-lock
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service
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emergency
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parking
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