Test Prep Valve Train) EXAM NEWEST
2025 EXAM COMPLETE QUESTIONS
AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY
GRADED A+
/. 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
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
D) suspension and steering - Answer-✅C) service and maintenance
/.Which part is most likely the problem if a light does not come on during an instrument
panel bulb check?
A) bulb
B) fuse
C) sender
D) switch - Answer-✅A) bulb
/.What organization certifies automotive technicians?
A) ASE
B) AYES
C) NATEF