ASE BRAKES T4 TEST 1 COMPREHENSIVE
TEST BANK COMPLETE ANSWERS
⫸ The Driver Vehicle Inspection Report (DVIR) should be submitted:
A. according to the vehicle maintenance schedule
B. when a failure occurs
C. weekly
D. daily Answer: D. daily
⫸ Which of the following cannot cause a drum on an air-braked vehicle
to overheat?
A. an over-tightened brake adjuster at that wheel
B. under-adjusted brake(s) elsewhere on the vehicle
C. too-high governor cut-out pressure
D. driving downhill in too high a gear Answer: C. too-high governor
cut-out pressure
⫸ All the brakes drag on a truck with hydraulic brakes. Which of the
following could be the cause?
A. air in the hydraulic system
,B. too high a vacuum supply to the power brake booster
C. a leaking secondary cup in the master cylinder
D. no brake pedal free travel Answer: D. no brake pedal free travel
⫸ Which of the following could cause a pulsating brake pedal on a
truck with hydraulic brakes?
A. zero brake pedal free travel
B. glazed linings
C. an out-of-round brake drum
D. a frozen wheel cylinder piston Answer: C. an out-of-round brake
drum
⫸ Air pressure gauges change an air pressure signal
se to leak down?
into an electronic voltage signal using which of the following
components?
A. inductor
B. capacitor
C. transducer
D. regulator Answer: C. transducer
⫸ Technician A says that linings worn too thin on an air-braked vehicle
can cause the S-camshaft to roll over. Technician B says this condition
can cause excess brake pedal travel. Who is right?
, A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B Answer: A. Technician A only
⫸ Spring brakes on an air-braked vehicle must be able to hold the
vehicle facing uphill or downhill on what percent grade?
A. 10%
B. 20%
C. 30%
D. 40% Answer: B. 20%
⫸ The driver of a truck with hydraulic brakes says the pedal reserve is
too low. Technician A says the brakes could be out of adjustment.
Technician B says one brake system may have failed. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B Answer: D. Neither A or B
⫸ The parking brakes tail to apply on a truck with air brakes.
Technician A says this could be caused by low air pressure in the spring
brake chamber. Technician B says this could be caused by a ruptured
spring brake diaphragm. Who is right?
A. Technician A only
TEST BANK COMPLETE ANSWERS
⫸ The Driver Vehicle Inspection Report (DVIR) should be submitted:
A. according to the vehicle maintenance schedule
B. when a failure occurs
C. weekly
D. daily Answer: D. daily
⫸ Which of the following cannot cause a drum on an air-braked vehicle
to overheat?
A. an over-tightened brake adjuster at that wheel
B. under-adjusted brake(s) elsewhere on the vehicle
C. too-high governor cut-out pressure
D. driving downhill in too high a gear Answer: C. too-high governor
cut-out pressure
⫸ All the brakes drag on a truck with hydraulic brakes. Which of the
following could be the cause?
A. air in the hydraulic system
,B. too high a vacuum supply to the power brake booster
C. a leaking secondary cup in the master cylinder
D. no brake pedal free travel Answer: D. no brake pedal free travel
⫸ Which of the following could cause a pulsating brake pedal on a
truck with hydraulic brakes?
A. zero brake pedal free travel
B. glazed linings
C. an out-of-round brake drum
D. a frozen wheel cylinder piston Answer: C. an out-of-round brake
drum
⫸ Air pressure gauges change an air pressure signal
se to leak down?
into an electronic voltage signal using which of the following
components?
A. inductor
B. capacitor
C. transducer
D. regulator Answer: C. transducer
⫸ Technician A says that linings worn too thin on an air-braked vehicle
can cause the S-camshaft to roll over. Technician B says this condition
can cause excess brake pedal travel. Who is right?
, A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B Answer: A. Technician A only
⫸ Spring brakes on an air-braked vehicle must be able to hold the
vehicle facing uphill or downhill on what percent grade?
A. 10%
B. 20%
C. 30%
D. 40% Answer: B. 20%
⫸ The driver of a truck with hydraulic brakes says the pedal reserve is
too low. Technician A says the brakes could be out of adjustment.
Technician B says one brake system may have failed. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B Answer: D. Neither A or B
⫸ The parking brakes tail to apply on a truck with air brakes.
Technician A says this could be caused by low air pressure in the spring
brake chamber. Technician B says this could be caused by a ruptured
spring brake diaphragm. Who is right?
A. Technician A only
