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Heavy truck brakes Exams Pack | Questions & 100% Correct Answers (Verified) | Latest Update | Grade A+
Heavy truck brakes Exams Pack | Questions & 100% Correct Answers (Verified) | Latest Update | Grade A+
[Show more]Heavy truck brakes Exams Pack | Questions & 100% Correct Answers (Verified) | Latest Update | Grade A+
[Show more]AN ENGINE BRAKE (JACOBS BRAKE) 
: A. IS A SELF-ENERGIZING SERVO TYPE. 
B. IS NORMALLY USED IN PLACE OF A SPRING BRAKE. 
C. RESTRICTS THE INTAKE PORT AND CAUSES A BUILD UP OF 30-45 LBS OF 
PRESSURE. 
D. OPENS THE EXHAUST VALVES NEAR THE TOP OF THE COMPRESSION 
STROKE TO RELEASE THE COMPRESSED AIR. ...
Preview 3 out of 18 pages
Add to cartAN ENGINE BRAKE (JACOBS BRAKE) 
: A. IS A SELF-ENERGIZING SERVO TYPE. 
B. IS NORMALLY USED IN PLACE OF A SPRING BRAKE. 
C. RESTRICTS THE INTAKE PORT AND CAUSES A BUILD UP OF 30-45 LBS OF 
PRESSURE. 
D. OPENS THE EXHAUST VALVES NEAR THE TOP OF THE COMPRESSION 
STROKE TO RELEASE THE COMPRESSED AIR. ...
When a truck has no air pressure in its tanks, which warning devices are activated when 
the ignition key is turned on? 
: A buzzer, a dash gauge and a red light 
What legislation mandates every required standard of a highway truck air brake 
system? 
: FMVSS 121 
If a truck is FMVSS 121 compliant...
Preview 2 out of 10 pages
Add to cartWhen a truck has no air pressure in its tanks, which warning devices are activated when 
the ignition key is turned on? 
: A buzzer, a dash gauge and a red light 
What legislation mandates every required standard of a highway truck air brake 
system? 
: FMVSS 121 
If a truck is FMVSS 121 compliant...
YOU HAVE REPLACED A POWER STEERING PUMP WHICH FAILED. WHAT 
SHOULD YOU DO BEFORE PUTTING THE TRUCK BACK INTO SERVICE? 
: A. REPLACE THE HYDRAULIC LINES. 
B. REMOVE AIR WITH A PRESSURE BLEEDER. (NOT CORRECT AWNSER) 
C. FLUSH THE SYSTEM WITH CLEAN POWER STEERING FLUID. (POSSIBLE 
CORRECT AWNSER) 
D....
Preview 3 out of 18 pages
Add to cartYOU HAVE REPLACED A POWER STEERING PUMP WHICH FAILED. WHAT 
SHOULD YOU DO BEFORE PUTTING THE TRUCK BACK INTO SERVICE? 
: A. REPLACE THE HYDRAULIC LINES. 
B. REMOVE AIR WITH A PRESSURE BLEEDER. (NOT CORRECT AWNSER) 
C. FLUSH THE SYSTEM WITH CLEAN POWER STEERING FLUID. (POSSIBLE 
CORRECT AWNSER) 
D....
AN ENGINE BRAKE (JACOBS BRAKE) 
: A. IS A SELF-ENERGIZING SERVO TYPE. 
B. IS NORMALLY USED IN PLACE OF A SPRING BRAKE. 
C. RESTRICTS THE INTAKE PORT AND CAUSES A BUILD UP OF 30-45 LBS OF 
PRESSURE. 
D. OPENS THE EXHAUST VALVES NEAR THE TOP OF THE COMPRESSION 
STROKE TO RELEASE THE COMPRESSED AIR. ...
Preview 3 out of 17 pages
Add to cartAN ENGINE BRAKE (JACOBS BRAKE) 
: A. IS A SELF-ENERGIZING SERVO TYPE. 
B. IS NORMALLY USED IN PLACE OF A SPRING BRAKE. 
C. RESTRICTS THE INTAKE PORT AND CAUSES A BUILD UP OF 30-45 LBS OF 
PRESSURE. 
D. OPENS THE EXHAUST VALVES NEAR THE TOP OF THE COMPRESSION 
STROKE TO RELEASE THE COMPRESSED AIR. ...
YOU HAVE REPLACED A POWER STEERING PUMP WHICH FAILED. WHAT 
SHOULD YOU DO BEFORE PUTTING THE TRUCK BACK INTO SERVICE? 
: A. REPLACE THE HYDRAULIC LINES. 
B. REMOVE AIR WITH A PRESSURE BLEEDER. (NOT CORRECT AWNSER) 
C. FLUSH THE SYSTEM WITH CLEAN POWER STEERING FLUID. (POSSIBLE 
CORRECT AWNSER) 
D....
Preview 3 out of 18 pages
Add to cartYOU HAVE REPLACED A POWER STEERING PUMP WHICH FAILED. WHAT 
SHOULD YOU DO BEFORE PUTTING THE TRUCK BACK INTO SERVICE? 
: A. REPLACE THE HYDRAULIC LINES. 
B. REMOVE AIR WITH A PRESSURE BLEEDER. (NOT CORRECT AWNSER) 
C. FLUSH THE SYSTEM WITH CLEAN POWER STEERING FLUID. (POSSIBLE 
CORRECT AWNSER) 
D....
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