ASE UPDATED ACTUAL QUESTIONS AND
CORRECT ANSWERS COMPREHENSIVE
STUDY GUIDE
●● Both technician a and b
Answer: Two technicians are discussing a compression test. Technician
A says that the engine should be cranked over with the pressure gauge
installed for "4 puffs." Technician B says that the maximum difference
between the highest reading cylinder and the lowest reading cylinder
should be 20%. Which technician is correct?
Technician A only
Technician b only
Both Technician A and B
Neither technician a nor b
●● Technician B
Answer: Technician A says that oil should be squirted into all the
cylinders before taking a compression test. Technician B says that if the
compression greatly increases when some oil is squirted in the cylinders,
it indicates defective or worn piston rings.
Technician A
,Technician B
Both technicians
Neither technician
●● Technician B
Answer: During a cylinder leakage (leak-down) test, air is noticed
coming out of the oil fill opening. Technician A says that the oil filter my
be logged. Technician B says that the piston rings may be worn or
defective. Which technician is correct?
Technician A
Technician B
Both A and B
Neither A nor B
●● Any of the above
Answer: Leaking antifreeze can be what color?
Green
Orange
Red
Any of the above
, ●● Open bleeder valves during filling
Answer: What precautions are needed to be performed to help prevent
air from getting trapped in the cooling system when replacing coolant?
Use the proper antifreeze as specified
Open bleeder valves during filling
Use premixed coolant
Wear protective gloves
●● All of the above
Answer: When replacing a water pump, be sure to _____________
Torque all fasteners to factory specifications
Use a new gasket/seal
Check that the accessory drive belt is properly aligned and adjusted to
the proper tension
All of the above
●● All of the above
Answer: When using a scan tool to retrieve diagnostic trouble codes
(DTCs) the technician should also _________
Check monitor status
CORRECT ANSWERS COMPREHENSIVE
STUDY GUIDE
●● Both technician a and b
Answer: Two technicians are discussing a compression test. Technician
A says that the engine should be cranked over with the pressure gauge
installed for "4 puffs." Technician B says that the maximum difference
between the highest reading cylinder and the lowest reading cylinder
should be 20%. Which technician is correct?
Technician A only
Technician b only
Both Technician A and B
Neither technician a nor b
●● Technician B
Answer: Technician A says that oil should be squirted into all the
cylinders before taking a compression test. Technician B says that if the
compression greatly increases when some oil is squirted in the cylinders,
it indicates defective or worn piston rings.
Technician A
,Technician B
Both technicians
Neither technician
●● Technician B
Answer: During a cylinder leakage (leak-down) test, air is noticed
coming out of the oil fill opening. Technician A says that the oil filter my
be logged. Technician B says that the piston rings may be worn or
defective. Which technician is correct?
Technician A
Technician B
Both A and B
Neither A nor B
●● Any of the above
Answer: Leaking antifreeze can be what color?
Green
Orange
Red
Any of the above
, ●● Open bleeder valves during filling
Answer: What precautions are needed to be performed to help prevent
air from getting trapped in the cooling system when replacing coolant?
Use the proper antifreeze as specified
Open bleeder valves during filling
Use premixed coolant
Wear protective gloves
●● All of the above
Answer: When replacing a water pump, be sure to _____________
Torque all fasteners to factory specifications
Use a new gasket/seal
Check that the accessory drive belt is properly aligned and adjusted to
the proper tension
All of the above
●● All of the above
Answer: When using a scan tool to retrieve diagnostic trouble codes
(DTCs) the technician should also _________
Check monitor status
