correct Question and Answers 2024
hydraulic system test
brake pedal height shall remain constant for one minute
pedal reserve test
fail for less than 1/3 of total pedal reserve remains
inspect brake drums
0.090 inch greater than original diameter
substantial cracks on friction surface
external cracks extending to the leading edge
brake pads
wear limit 2/32 inch
bonded brake linings
wear limit 2/32 inch
riveted brake linings
wear limit 1/32 of an inch above rivet head
, vacuum booster test
stop engine pump brake pedal several times to deplete vacuum depress pedal with slight
force while starting engine pedal should move slightly when engine starts
Parking brake test
should hold vehicle to the limit of traction at 20% grade in either direction
Exhaust System Defects
fail for damage and corrosion
do not fail for missing resonator if muffler is present
exhaust system
should exit at approx 45 degree angle to prevent backpressure
Exhaust System
should extend beyond occupant compartment and enclosed cargo area if it open to occupant
compartment to at least the front of the rear wheels and beyond the rear of the rear most
door opening. should exceed beyond the side or rear of the body
bumper height
no higher than 20 inches for passenger vehicles