HEAVY TRUCK BRAKES MICHIGAN MECHANIC STUDY GUIDE EXAM LATEST 2026
UPDATED QUESTIONS AND VERIFIED 100% SOLUTIONS (2026/2027) |A+
GRADED |GUARANTEED PASS
A MECHANIC FINDS THAT THE BRAKE LINING IS WORN VERY MUCH NEAR THE EDGE. WHAT
WOULD CAUSE THIS TO HAPPEN? - Answers -A. BELL MOUTHED BRAKE DRUMS.
B. WORN-OUT ANCHOR PIN HOLES IN THE BRAKE SHOE.
C. A BENT BRAKE SHOE WEB.
D. ALL OF THE ABOVE. (CORRECT AWNSER)
WHICH ONE OF THESE SHOULD BE DONE MOST FREQUENTLY? - Answers -A. ADJUST THE
SPIDERS.
B. LUBRICATE THE "S" CAM.
C. CHECK THE BRAKE CHAMBERS FOR MOISTURE. (NOT CORRECT AWNSER)
D. CHECK THE BRAKE CHAMBER PUSH ROD TRAVEL. (POSSIBLE CORRECT AWNSER)
AIR BRAKE LINES ARE MSOT OFTEN MADE OF: - Answers -A. BRASS AND ALUMINUM.
B. STEELAND NYLON.
C. NYLON AND BRASS.
D. COPPER AND NYLON. (CORRECT AWNSER)
TO FIND LEAKS IN AIRLINE FITTINGS AND SERVICE CHAMBERS, YOU SHOULD USE: - Answers -A.
A HALIDE LEAK DETECTOR.
B. A VACUUM GAUGE. (NOT CORRECT AWNSER)
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, C. A BRAKE PRESSURE BLEEDER.
D. A SOAP SUDS MIXTURE. (POSSIBLE CORRECT AWNSER)
A LIKELY CAUSE OF GRABBING BRAKES ON A DRIVE AXLE WOULD BE: - Answers -A. A BAD QUICK
RELEASE VALVE. (NOT CORRECT AWNSER)
B. BRAKES ADJUSTED TOO TIGHT. (POSSIBLE CORRECT AWNSER)
C. GREASE OR GEAR LUBE ON LININGS.
D. WEAK SHOE RETURN SPRINGS.
THE HYDRAULIC SERVICE BRAKES WILL NOT RELEASE FULLY. WHAT SHOULD YOU DO FIRST? -
Answers -A. CHECK THE MASTER CYLINDER FOR DEFECTS. (CORRECT AWNSER)
B. CHECK FOR A DEFECTIVE QUICK RELEASE VALVE.
C. RUN AN ENGINE VACUUM TEST.
D. CHECK THE BRAKE DRUMS.
IN THE SYSTEM SHOWN BELOW, AIR LEAKS FROM THE RELAY VALVE EXHAUST PORT ALL THE
TIME. THE LIKELY CAUSE OF THIS PROBLEM IS: - Answers -A. A LEAKY SEAL IN THE PART AT
POINT D.
B. A LEAKY SEAL IN THE PART AT POINT C. (CORRECT AWNSER)
C. A LEAKY SEAL IN THE PART AT POINT E.
D. A LEKAY SEAL IN THE PART AT POINT A.
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UPDATED QUESTIONS AND VERIFIED 100% SOLUTIONS (2026/2027) |A+
GRADED |GUARANTEED PASS
A MECHANIC FINDS THAT THE BRAKE LINING IS WORN VERY MUCH NEAR THE EDGE. WHAT
WOULD CAUSE THIS TO HAPPEN? - Answers -A. BELL MOUTHED BRAKE DRUMS.
B. WORN-OUT ANCHOR PIN HOLES IN THE BRAKE SHOE.
C. A BENT BRAKE SHOE WEB.
D. ALL OF THE ABOVE. (CORRECT AWNSER)
WHICH ONE OF THESE SHOULD BE DONE MOST FREQUENTLY? - Answers -A. ADJUST THE
SPIDERS.
B. LUBRICATE THE "S" CAM.
C. CHECK THE BRAKE CHAMBERS FOR MOISTURE. (NOT CORRECT AWNSER)
D. CHECK THE BRAKE CHAMBER PUSH ROD TRAVEL. (POSSIBLE CORRECT AWNSER)
AIR BRAKE LINES ARE MSOT OFTEN MADE OF: - Answers -A. BRASS AND ALUMINUM.
B. STEELAND NYLON.
C. NYLON AND BRASS.
D. COPPER AND NYLON. (CORRECT AWNSER)
TO FIND LEAKS IN AIRLINE FITTINGS AND SERVICE CHAMBERS, YOU SHOULD USE: - Answers -A.
A HALIDE LEAK DETECTOR.
B. A VACUUM GAUGE. (NOT CORRECT AWNSER)
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, C. A BRAKE PRESSURE BLEEDER.
D. A SOAP SUDS MIXTURE. (POSSIBLE CORRECT AWNSER)
A LIKELY CAUSE OF GRABBING BRAKES ON A DRIVE AXLE WOULD BE: - Answers -A. A BAD QUICK
RELEASE VALVE. (NOT CORRECT AWNSER)
B. BRAKES ADJUSTED TOO TIGHT. (POSSIBLE CORRECT AWNSER)
C. GREASE OR GEAR LUBE ON LININGS.
D. WEAK SHOE RETURN SPRINGS.
THE HYDRAULIC SERVICE BRAKES WILL NOT RELEASE FULLY. WHAT SHOULD YOU DO FIRST? -
Answers -A. CHECK THE MASTER CYLINDER FOR DEFECTS. (CORRECT AWNSER)
B. CHECK FOR A DEFECTIVE QUICK RELEASE VALVE.
C. RUN AN ENGINE VACUUM TEST.
D. CHECK THE BRAKE DRUMS.
IN THE SYSTEM SHOWN BELOW, AIR LEAKS FROM THE RELAY VALVE EXHAUST PORT ALL THE
TIME. THE LIKELY CAUSE OF THIS PROBLEM IS: - Answers -A. A LEAKY SEAL IN THE PART AT
POINT D.
B. A LEAKY SEAL IN THE PART AT POINT C. (CORRECT AWNSER)
C. A LEAKY SEAL IN THE PART AT POINT E.
D. A LEKAY SEAL IN THE PART AT POINT A.
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