Air Brakes Practice Test - Kansas
11.
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 whenever you reach your safe speed, until your speed has been reduced to 5 mph below your safe speed.
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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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12.
During a trip you should check:
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mirrors.
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temperature gauges.
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pressure gauges.
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All of the above.
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13.
Emergency brakes must be held on by:
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hydraulic pressure.
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dynamic pressure.
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air pressure.
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mechanical force.
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14.
_________ must have a low air pressure warning signal.
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Only vehicles with air brakes built before 2015
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Vehicles with air brakes built after 2005
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Vehicles with air brakes built after 2010
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All vehicles with air brakes
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15.
Tar in the road pavement rising to the road surface in very hot weather:
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causes the road to become very slippery.
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might get in your engine.
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is very sticky and will slow down your vehicle.
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does not affect the road surface or driving conditions.
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