ASE A7 Exam 1 Test Prep: Review and Practice Questions
C. - correct answer ✔✔An airbag system needs to be disarmed during an evaporator core replacement.
Technician A says that it is necessary to remove power from the system prior to component removal.
Technician B says that the inflatable devices should be laid "face up" in a secure area after being
removed from a vehicle. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
D. (the orifice tube does not open and close. it is a fixed restriction that meters refrigerant into the
evaporator core) - correct answer ✔✔An orifice tube performs any of these jobs in the A/C system
EXCEPT:
A. Meters refrigerant into the evaporator core
B. Filters foreign particles
C. Separates the high side from the low side
D. Opens and closes to regulate pressure on the low side
A. - correct answer ✔✔A technician connects a scan tool to a late-model vehicle to troubleshoot a
problem in the ATC system. The scan tool gives a fault of "data bus short to ground." Technician A says
that the problem could be a data wire rubbing against a sharp body component. Technician B says that
the problem could be a broken data wire. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
, D. - correct answer ✔✔Any of these methods of R134a A/C system leak detection are acceptable
EXCEPT:
A. Dye and black light
B. Electronic leak detector
C. Nitrogen and soapy water
D. Propane burner
B. (Electronic blend door motors use some sort of feedback device. A potentiometer is typically used to
signal the HVAC control device the correct door position) - correct answer ✔✔Technician A says that an
electronic blend door motor uses an analog signal to open and close. Technician B says that an electronic
mode door motor uses a feedback device to indicate the position of the door. Who is right?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
C. - correct answer ✔✔What is the most likely cause for a serpentine drive belt to slip under heavy
loads?
A. Surface cracks on the inside of the belt
B. Belt is stretched one-quarter inch
C. Seized tensioner
D. Glazed belt
C. - correct answer ✔✔Any of these practices should be followed when interacting with airbag system
components EXCEPT:
A. Unhook the negative battery cable prior to beginning work.
B. Store inflatable components "face up" in a secure area.
C. - correct answer ✔✔An airbag system needs to be disarmed during an evaporator core replacement.
Technician A says that it is necessary to remove power from the system prior to component removal.
Technician B says that the inflatable devices should be laid "face up" in a secure area after being
removed from a vehicle. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
D. (the orifice tube does not open and close. it is a fixed restriction that meters refrigerant into the
evaporator core) - correct answer ✔✔An orifice tube performs any of these jobs in the A/C system
EXCEPT:
A. Meters refrigerant into the evaporator core
B. Filters foreign particles
C. Separates the high side from the low side
D. Opens and closes to regulate pressure on the low side
A. - correct answer ✔✔A technician connects a scan tool to a late-model vehicle to troubleshoot a
problem in the ATC system. The scan tool gives a fault of "data bus short to ground." Technician A says
that the problem could be a data wire rubbing against a sharp body component. Technician B says that
the problem could be a broken data wire. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
, D. - correct answer ✔✔Any of these methods of R134a A/C system leak detection are acceptable
EXCEPT:
A. Dye and black light
B. Electronic leak detector
C. Nitrogen and soapy water
D. Propane burner
B. (Electronic blend door motors use some sort of feedback device. A potentiometer is typically used to
signal the HVAC control device the correct door position) - correct answer ✔✔Technician A says that an
electronic blend door motor uses an analog signal to open and close. Technician B says that an electronic
mode door motor uses a feedback device to indicate the position of the door. Who is right?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
C. - correct answer ✔✔What is the most likely cause for a serpentine drive belt to slip under heavy
loads?
A. Surface cracks on the inside of the belt
B. Belt is stretched one-quarter inch
C. Seized tensioner
D. Glazed belt
C. - correct answer ✔✔Any of these practices should be followed when interacting with airbag system
components EXCEPT:
A. Unhook the negative battery cable prior to beginning work.
B. Store inflatable components "face up" in a secure area.
