VT CDL AIR BRAKES PRACTICE TEST

16. When you apply the brakes, the brake shoes and linings are pushed against:
the S-cam.
the supply pressure gauge.
None of the above.
17. If your truck has automatic transmission, you should downshift:
whenever road conditions allow.
when going down grades.
after entering a curve.
18. Supply pressure gauges tell you:
how much pressure is in the air tanks.
when the air pressure in the tanks falls below 60 psi.
how much air pressure you are applying to the brakes.
19. Your vehicle has hydraulic brakes. When you press the brake pedal while driving and the pedal goes to the floor, remember that:
pumping the brake pedal may generate enough hydraulic pressure to stop the vehicle.
shifting into neutral may help slow the vehicle.
the parking brake should never used to slow the vehicle.
20. During a trip you should check:
pressure gauges.
temperature gauges.
All of the above.
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