©THESTAR 2024/2025 ALL RIGHTS RESERVED 11:32AM. A+
Auto Engine Repair (SOS Michigan Test Prep
Valve Train) Exam Questions With Correct
Answers 100% Verified.
What is enclosed in the vehicle vin? - Answer✔Engine type, body style, and transmission type.
A compression test shows that one cylinder shows to much leakage. During the air test could be
heard coming from the tailpipe what could be the cause?
A) bad piston rings
B) bad head gasket
C) bad exhaust gasket
D) exhaust valve not seating - Answer✔D.) exhaust valve not seating
Technician A says that main bearing oil clearances can be checked with plasty gages.
Technician B says that main bearing oil clearances can be checked with a feeler gauge. Who is
Correct? - Answer✔Tech A
An engine is burning to much oil. Technician A says its the valve guides. Technician B says its
tapered cylinder walls. Who is correct? - Answer✔Both
A compression test is being done on an in- line four cylinder engine. Cylinder two and three
have readings of 10 psi cylinder one has a reading of 140 psi and cylinder four has 145psi.
Technician A says its a blown head gasket
Technician B says its bad valve timing. - Answer✔Tech A
What is the most likely cause of low fuel pressure in a fuel injection engine?
A) clogged fuel filter
B) clogged injector
C) restricted fuel line
1
, ©THESTAR 2024/2025 ALL RIGHTS RESERVED 11:32AM. A+
D) stuck closed pressure regulator - Answer✔A) clogged fuel filter
The pressure and volume of a mechanical fuel pump are both below spec.
Technician A says that an air leak in the fuel line between the tank and the pump could be the
cause.
Technician B says that a plugged fuel tank pick-up filter is the cause. - Answer✔Both
The most likely cause of a bent push rod? - Answer✔Excessive valve guide clearance
Technician A says that it is important to drive the customers vehicle to verify the complaint as
part of your diagnosis procedure.
Technician B says its a good idea to check for related TSB's - Answer✔Both
Technician A says the main bearing clearances can be checked with plasty gauges.
Technician B says that you can check main bearing clearances with a feeler gauge. Who is
correct? - Answer✔Tech A
The oil filter on a customer's car is bulged out.
Technician A says this could be caused by an improper filter installation.
Technician B says this can only be caused by a pressure regulator that is stuck. Who is correct? -
Answer✔Tech B
Technician A says that a turbocharger boost is controlled by a wastegate.
Technician B says the wastegate is controlled by the engine vacuum.
Who is correct? - Answer✔Both
NATEF certifies automotive:
A) dealerships
B) independent garages
C) technicians
D) training programs - Answer✔D) training programs
All of these are ASE certifications except
A) automotive transmission/ transaxle
B) engine repair
C) service and maintenance
2
Auto Engine Repair (SOS Michigan Test Prep
Valve Train) Exam Questions With Correct
Answers 100% Verified.
What is enclosed in the vehicle vin? - Answer✔Engine type, body style, and transmission type.
A compression test shows that one cylinder shows to much leakage. During the air test could be
heard coming from the tailpipe what could be the cause?
A) bad piston rings
B) bad head gasket
C) bad exhaust gasket
D) exhaust valve not seating - Answer✔D.) exhaust valve not seating
Technician A says that main bearing oil clearances can be checked with plasty gages.
Technician B says that main bearing oil clearances can be checked with a feeler gauge. Who is
Correct? - Answer✔Tech A
An engine is burning to much oil. Technician A says its the valve guides. Technician B says its
tapered cylinder walls. Who is correct? - Answer✔Both
A compression test is being done on an in- line four cylinder engine. Cylinder two and three
have readings of 10 psi cylinder one has a reading of 140 psi and cylinder four has 145psi.
Technician A says its a blown head gasket
Technician B says its bad valve timing. - Answer✔Tech A
What is the most likely cause of low fuel pressure in a fuel injection engine?
A) clogged fuel filter
B) clogged injector
C) restricted fuel line
1
, ©THESTAR 2024/2025 ALL RIGHTS RESERVED 11:32AM. A+
D) stuck closed pressure regulator - Answer✔A) clogged fuel filter
The pressure and volume of a mechanical fuel pump are both below spec.
Technician A says that an air leak in the fuel line between the tank and the pump could be the
cause.
Technician B says that a plugged fuel tank pick-up filter is the cause. - Answer✔Both
The most likely cause of a bent push rod? - Answer✔Excessive valve guide clearance
Technician A says that it is important to drive the customers vehicle to verify the complaint as
part of your diagnosis procedure.
Technician B says its a good idea to check for related TSB's - Answer✔Both
Technician A says the main bearing clearances can be checked with plasty gauges.
Technician B says that you can check main bearing clearances with a feeler gauge. Who is
correct? - Answer✔Tech A
The oil filter on a customer's car is bulged out.
Technician A says this could be caused by an improper filter installation.
Technician B says this can only be caused by a pressure regulator that is stuck. Who is correct? -
Answer✔Tech B
Technician A says that a turbocharger boost is controlled by a wastegate.
Technician B says the wastegate is controlled by the engine vacuum.
Who is correct? - Answer✔Both
NATEF certifies automotive:
A) dealerships
B) independent garages
C) technicians
D) training programs - Answer✔D) training programs
All of these are ASE certifications except
A) automotive transmission/ transaxle
B) engine repair
C) service and maintenance
2
