CDL AIR BRAKES PRACTICE TEST - DELAWARE

6. Spring brakes are usually held back by:
the antilock braking system.
the brake pedal.
modulating control valves.
air pressure.
7. The tire load rating is stated:
on each axle.
inside the suspension system.
on the dashboard.
on the side of each tire.
8. The supply pressure gauges tell you how much air pressure:
is going to the brake chambers.
is in the air brakes.
you are applying to the brakes.
is in the air tanks.
9. The use of brakes on a steep downgrade is:
much more effective than the engine braking effect.
a supplement to the braking effect of the engine.
the main braking factor.
dangerous, and should be avoided at all costs.
10. The total stopping distance for vehicles with air brake systems is made up of __ different factors.
3
2
4
5
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