SOUTH CAROLINA SCHOOL BUS CDL PRACTICE TEST

11. Which of the following is NOT true?
ABS only comes into play when a wheel would have locked up because of over braking.
ABS won't compensate for bad brakes.
ABS won't compensate for poor brake maintenance.
ABS will change the way you normally brake.
12. Brake fade results from:
excessive smoke.
excessive wear.
excessive speeding.
excessive use of the service brakes.
13. If your bus is equipped with a roof-mounted strobe light, you should use it:
when you have limited visibility.
whenever possible.
only in an emergency.
only at night.
14. ABS:
is not required on newer trucks.
gives you more control when you brake.
helps increase brake pressure.
causes your wheels to lock when you break hard.
15. When driving in very hot weather, you may have to:
reduce your speed to prevent overheating.
watch out for black ice.
increase your speed until the tires cool off.
decrease your following distance.
16. Before starting down a hill, you should slow down and shift down:
to a gear that will cause your brakes to overheat.
to a speed that you can control without using the brakes hard.
to a gear that will cause your engine to exceed its redline.
so you can coast downhill.
17. If you perform the skills test in a vehicle that is not equipped with air brakes:
you will be required to take the tank vehicle test.
you will be required to operate vehicles with air brakes.
you will be required to operate a CMV without hydraulic brakes.
you will be restricted from operating vehicles with air brakes.
18. If your bus has a manual transmission:
cross the railroad tracks in a low gear.
never change gears while crossing railroad tracks.
at a multiple-track crossing, stop only before the first set of tracks.
All of the above.
19. ABS:
always shortens your overall stopping distance.
keeps your wheels from locking up during hard brake applications.
helps increase brake pressure.
allows you to drive faster.
20. To make the brakes work, air brakes use:
compressed air.
nitrogen.
hydraulic air.
carbon monoxide.
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