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Air Brake Test

33 Questions  I  By Susie04
AIR BRAKE TEST
CDL-AIR BRAKE TEST

  
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1.  WHICH BRAKE SYSTEM APPLIES AND RELEASES THE BRAKES WHEN THE DRIVER USES THE BRAKE PEDAL?
A.
B.
C.
D.
2.  MODERN AIR BRAKES ARE A COMBINATION OF SERVICE, PARKING, AND WHAT OTHER BRAKE SYSTEM?
A.
B.
C.
D.
3.  WHAT DOES THE AIR COMPRESSOR GOVERN CONTROL?
A.
B.
C.
D.
4.  WHY SHOULD YOU DRAIN WATER FROM COMPRESSED AIR TANKS?
A.
B.
C.
D.
5.  WHAT IS THE PURPOSE OF AN ALCOHOL EVAPORATOR?
A.
B.
C.
D.
6.  FOR VEHICLES WITH AN ALCOHOL EVAPORATOR, WHAT SHOULD YOU DO EVERY DAY DURING COLD WEATHER?
A.
B.
C.
D.
7.  WHAT DOES THE BRAKE PEDAL DO IN AN AIR BRAKE SYSTEM?
A.
B.
C.
D.
8.  THE MOST COMMON TYPE OF FOUNDATION BRAKE IS THE:
A.
B.
C.
D.
9.  ALL AIR BRAKE EQUIPPED VEHICLES HAVE:
A.
B.
C.
D.
10.  WHAT DOES THE AIR SUPPLY PRESSURE GAUGE INDICATE?
A.
B.
C.
D.
11.  THE APPLICATION PRESSURE GAUGE SHOWS:
A.
B.
C.
D.
12.  THE DRIVER MUST BE ABLE TO SEE THE AIR PRESSURE WARNING LIGHT COME ON BEFORE THE PRESSURE GETS BELOW:
A.
B.
C.
D.
13.  DURING NORMAL DRIVING, SPRING BRAKES ARE USUALLY HELD BACK BY:
A.
B.
C.
D.
14.  IF THERE IS A LEAK IN THE AIR BRAKE SYSTEM, THE PARKING OR EMERGENCY
A.
B.
15.  WHAT AFFECTS THE POWER OF THE SPRING BRAKES?
A.
B.
C.
D.
16.  WHAT IS THE PURPOSE OF DUAL PARKING CONTROL VALVES?
A.
B.
C.
D.
17.  FOR A DUAL AIR BRAKE EQUIPPED VEHICLE, WHAT SHOULD YOU DO IF THE SECONDARY SYSTEM FAILS?
A.
B.
C.
D.
18.  HOW DO YOU CHECK THE FREE PLAY OF MANUAL SLACK ADJUSTERS ON S-CAM BRAKES?
A.
B.
C.
D.
19.  WHEN TESTING THE LOW PRESSURE WARNING SYSTEM, YOU SHOULD BUILD UP YOUR AIR PRESSURE, AND THEN:
A.
B.
C.
D.
20.  WHEN CHECKING THAT THE SPRING BRAKES COME ONE AUTOMATICALLY, THE PARKING BRAKE KNOB SHOULD POP OUT WHEN:
A.
B.
C.
D.
21.  A STRAIGHT TRUCK AIR BRAKE SYSTEM WITH THE ENGINE OFF AND THE SERVICE BRAKE RELEASED, SHOULD NOT LEAK AT A RATE GREATER THAN:
A.
B.
C.
D.
22.  A BUS AIR BRAKE SYSTEM, WITH THE ENGINE OFF AND THE BRAKE PEDAL ON, SHOULD NOT LEAK AT A RATE GREATER THAN:
A.
B.
C.
D.
23.  WHEN TESTING THE SERVICE BRAKES, YOU HAVE A PROBLEM WHEN:
A.
B.
C.
D.
24.  HOW SHOULD YOU BRAKE IN AN EMERGENCY STOP?
A.
B.
C.
D.
25.  WHAT IS EMERGENCY STAB BRAKING?
A.
B.
C.
D.
26.  WHY DOES AIR BRAKING TAKE MORE TIME THAN HYDRAULIC BRAKING?
A.
B.
C.
D.
27.  TOTAL STOPPING DISTANCE FOR AIR BRAKES IS LONGER THAN FOR HYDRAULIC BRAKES DUE TO:
A.
B.
C.
D.
28.  HOW CAN YOU TELL IF YOUR BRAKES ARE FADING ON A LONG DOWNGRADE?
A.
B.
C.
D.
29.  WHY IS SHORTER, LIGHT BRAKE PEDAL PRESSURE USED ON LONG DOWNHILL GRADES INSTEAD ON ON-OFF BRAKING?
A.
B.
C.
D.
30.  THE MOST IMPORTANT THING TO DO WHEN THE LOW AIR PRESSURE WARNING COMES ON IS TO:
A.
B.
C.
D.
31.  IN AN AIR BRAKE VEHICLE, WHEN DO YOU USE THE APRKING BRAKES?
A.
B.
C.
D.
32.  HOW OFTEN SHOULD YOU DRAIN YOUR AIR TANKS IF IT IS NOT DONE AUTOMATICALLY IN YOUR VEHICLE?
A.
B.
C.
D.
33.  Which axle or axles does the dual air brake system operate?
A.
B.
C.
D.
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