CO CDL AIR BRAKES PRACTICE TEST

11. The total stopping distance for vehicles with air brake systems is made up of __ different factors.
5
2
3
4
12. If the ABS is not working:
you still have normal brake functions.
the vehicle will have weak brakes.
the vehicle will have no brakes.
None of the above.
13. You are driving on a steep downgrade. If your safe speed is 35 mph, you should apply the brakes when your speed reaches:
30 mph
45 mph
35 mph
25 mph
14. The space under a heavily loaded vehicle can be very small. This can cause problems:
on unpaved yards.
when crossing railroad tracks.
on dirt roads.
All of the above.
15. When the air pressure is built up to governor cutoff, the air leakage rate for combination vehicles with the engine off and the foot brake fully applied should be less than_____ in one minute.
3 psi
2 psi
4 psi
5 psi
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