CDL AIR BRAKES PRACTICE TEST - TEXAS

Question

21. With a dual air brake system:

each system shares the same lines and hoses.
each system shares air tanks.
each system has its own air tanks, hoses and lines.
one system is the main braking system while the other is a back-up system.

Answer 1

each system shares the same lines and hoses.

Answer 2

each system shares air tanks.

Answer 3

each system has its own air tanks, hoses and lines.

Answer 4

one system is the main braking system while the other is a back-up system.

Answer 5

dynamic pressure.

Answer 6

air pressure.

Answer 7

mechanical force.

Answer 8

hydraulic pressure.

Answer 9

require greater stopping distances.

Answer 10

are higher than loaded trucks.

Answer 11

have less traction.

Answer 12

All of the above.

Answer 13

Pushing down on the brake pedal as hard as you can will only keep the wheels locked up and cause a skid.

Answer 14

Your natural response (hitting the brakes) is never the right solution.

Answer 15

The more heavily loaded semitrailer trailer should be in the rear.

Answer 16

You should never use stab braking.