BRAKE HYDRAULIC COMPONENTS TEST WITH COMPLETE SOLUTIONS GRADED A+
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BRAKE HYDRAULIC COMPONENTS
Institution
BRAKE HYDRAULIC COMPONENTS
BRAKE HYDRAULIC COMPONENTS TEST WITH COMPLETE SOLUTIONS GRADED A+
Technician A states that proportioning valves used in typical brake systems can be pressure sensitive. Technician B states that proportioning valves used in typical brake systems can be load sensitive. Who is correct?
• Technici...
BRAKE HYDRAULIC COMPONENTS
TEST WITH COMPLETE
SOLUTIONS GRADED A+
Technician A states that proportioning valves used in typical brake systems can be
pressure sensitive. Technician B states that proportioning valves used in typical brake
systems can be load sensitive. Who is correct?
• Technician A
• Technician B
• Both Technician A and Technician B
• Neither Technician A nor Technician B - Answer-Both Technician A and Technician B
Technician A says that vacuum boosters use only single diaphragms to extract power
from the atmospheric pressure and transmit force to the master cylinder. Technician B
says that a one-way vacuum check valve is used to prevent brake fluid from entering
the vacuum booster. Who is correct?
• Technician A
• Technician B
• Both Technician A and Technician B
• Neither Technician A nor Technician B - Answer-Neither Technician A nor Technician
B
Technician A says that a center high-mount stop lamp (CHMSL) is used to apply the
brakes if there is a brake failure. Technician B says that as of 1986, all vehicles must
have a center high-mount stop lamp (CHMSL) to reduce incidence of rear-end
collisions. Who is correct?
• Technician A
• Technician B
• Both Technician A and Technician B
• Neither Technician A nor Technician B - Answer-Technician B
Technician A says that hydraulic braking systems use proportioning valves, pressure
differential valves, and metering valves. Technician B says that a combination valve is a
pressure differential valve, metering valve, and proportioning valve all in one unit. Who
is correct?
• Technician A
• Technician B
• Both Technician A and Technician B
• Neither Technician A nor Technician B - Answer-Both Technician A and Technician B
, Technician A says that the pressure differential switch may need to be re-centered after
bleeding the brakes. Technician B says that there are several types of pressure
differential switches, and each requires a different method of re-centering. Who is
correct?
• Technician A
• Technician B
• Both Technician A and Technician B
• Neither Technician A nor Technician B - Answer-Both Technician A and Technician B
The master cylinder reservoir should always have air space at the top of the reservoir to
allow for the of brake fluid as it heats up.
• expansion.
• draining.
• purification.
• refilling. - Answer-expansion.
All of the following can turn on the red brake warning light, EXCEPT
• the parking brake being engaged.
• the brake fluid level being low.
• the pressure being unequal in the brake system.
• a defective stop lamp switch. - Answer-a defective stop lamp switch.
If the brake pedal linkage is not adjusted correctly, brake fluid may not be able to
expand back into the reservoir through the port of the master
cylinder when the brakes get hot.
• compensating
• outlet
• inlet
• secondary - Answer-compensating
The primary brake circuit fails due to a leak in the lines. Technician A says that the
driver will notice a lower than normal brake pedal and reduced braking power.
Technician B says that the brake pedal will "grab" higher than normal. Who is correct?
• Technician A
• Technician B
• Both Technician A and Technician B
• Neither Technician A nor Technician B - Answer-Technician A
The two types of flares used on brake lines are
• SAE and DOT.
• inverted double flare and ISO.
• ball flare and bubble flare.
• SAE and double flare. - Answer-inverted double flare and ISO.
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