AUMT 1410SEC3 Exam Questions Part 3 Questions with Correct Answers
Question 1:
Two technicians are discussing a disc brake caliper:
Technician A says that calipers use springs to retract the seals after a brake application.
Technician B says that sliding calipers typically use one piston on each side of the rotor.
Who is correct?
Answer:
Neither A nor B
Question 2:
Technician A says that solid rotors can usually be machined several times before their minimum
thickness limits are reached. Technician B says that composite rotors have cast-iron hubs with
steel friction surfaces. Who is correct?
Answer:
Neither A nor B
Question 3:
Disc brake calipers are being discussed. Technician A says that a single caliper may have one,
two, or more pistons. Technician B says that the piston seal is known as a square-cut seal. Who
is correct?
Answer:
Both A and B
Question 4:
The advantages and disadvantages of disc brake systems are being discussed. Technician A says
that disc brakes are more likely to develop brake fade and water fade. Technician B says that
reduction of mechanical fade and gas fade is an advantage of disc brakes. Who is correct?
Answer:
B only
Question 5:
Technician A says that synthetic brake linings are used for many types of brakes. Technician B
says that synthetic brake linings are made of aramid or fiberglass. Who is correct?
Answer:
, B only
Question 6:
Technician A says that when the driver hears the audible brake pad wear indicator, he should
immediately park the car and not use it until the brakes are replaced. Technician B says that the
wear pad indicators alert the driver to worn pads that should be replaced soon. Who is correct?
Answer:
B only
Question 7:
Technician A says that inner and outer pad friction materials may have different coefficients of
friction Technician B says that identical inboard and outboard pad linings should always be used
when replacing brake pads. Who is correct?
Answer:
A only
Question 8:
The operation of disc brake systems is being discussed. Technician A says that composite rotors
were developed to save weight. Technician B says that a fixed rotor assembly is part of the hub.
Who is correct?
Answer:
Both A and B
Question 9:
Technician A says that a return spring is used to retract a caliper piston. Technician B says that
the piston seal retracts the caliper piston when hydraulic pressure is released. Who is correct?
Answer:
B only
Question 10:
When discussing disc brake work:
Technician A says that organic linings are a composite material made from bonding nonmetallic
fibers. Technician B says that semimetallic linings require higher brake pedal effort but are
more fade resistant compared to organic linings.
Who is correct?
Question 1:
Two technicians are discussing a disc brake caliper:
Technician A says that calipers use springs to retract the seals after a brake application.
Technician B says that sliding calipers typically use one piston on each side of the rotor.
Who is correct?
Answer:
Neither A nor B
Question 2:
Technician A says that solid rotors can usually be machined several times before their minimum
thickness limits are reached. Technician B says that composite rotors have cast-iron hubs with
steel friction surfaces. Who is correct?
Answer:
Neither A nor B
Question 3:
Disc brake calipers are being discussed. Technician A says that a single caliper may have one,
two, or more pistons. Technician B says that the piston seal is known as a square-cut seal. Who
is correct?
Answer:
Both A and B
Question 4:
The advantages and disadvantages of disc brake systems are being discussed. Technician A says
that disc brakes are more likely to develop brake fade and water fade. Technician B says that
reduction of mechanical fade and gas fade is an advantage of disc brakes. Who is correct?
Answer:
B only
Question 5:
Technician A says that synthetic brake linings are used for many types of brakes. Technician B
says that synthetic brake linings are made of aramid or fiberglass. Who is correct?
Answer:
, B only
Question 6:
Technician A says that when the driver hears the audible brake pad wear indicator, he should
immediately park the car and not use it until the brakes are replaced. Technician B says that the
wear pad indicators alert the driver to worn pads that should be replaced soon. Who is correct?
Answer:
B only
Question 7:
Technician A says that inner and outer pad friction materials may have different coefficients of
friction Technician B says that identical inboard and outboard pad linings should always be used
when replacing brake pads. Who is correct?
Answer:
A only
Question 8:
The operation of disc brake systems is being discussed. Technician A says that composite rotors
were developed to save weight. Technician B says that a fixed rotor assembly is part of the hub.
Who is correct?
Answer:
Both A and B
Question 9:
Technician A says that a return spring is used to retract a caliper piston. Technician B says that
the piston seal retracts the caliper piston when hydraulic pressure is released. Who is correct?
Answer:
B only
Question 10:
When discussing disc brake work:
Technician A says that organic linings are a composite material made from bonding nonmetallic
fibers. Technician B says that semimetallic linings require higher brake pedal effort but are
more fade resistant compared to organic linings.
Who is correct?
