ASE 1 Engine Repair Practice Test
Question 1.
An engine's connecting rod bearings are worn, resulting in low oil pressure and a knocking sound at startup. Which of the following
could be the cause?
ANSWER
D. Both A and B
Question 2.
Technician A says to measure the oil pump gear end-play before reinstalling the pump. Technician B says to use a feeler gauge and
a straight edge to measure oil pump body flatness. Who is correct?
ANSWER
C. Both A and B
Question 3.
The technician in the illustration above is:
ANSWER
B. Setting angle with an angle
Question 4.
The charging light on the instrument panel intermittently flickers while driving. The MOST likely cause of this condition is:
ANSWER
D. A weak accessory belt tensioner.
Question 5.
A vehicle has black-colored exhaust and a lack of power when accelerating. Technician A says a rich air-fuel ratio may have clogged
the catalytic converter. Technician B says to use a back pressure tester to test for a restriction in the exhaust system. Who is correct?
ANSWER
C. Both A and B
Question 6.
Technician A says to use a machinist rule to measure valve tip installed height. Technician B says to use an outside micrometer to
measure valve spring squareness. Who is correct?
ANSWER
A. Technician A
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, Question 7.
Technician A says oil viscosity changes with engine temperature. Technician B says a faulty oil cooler could result in a coolant leak.
Who is correct?
ANSWER
C. Both A and B
Question 8.
A FWD vehicle's steering wheel and dashboard vibrate when the brake pedal is applied, and the transmission is placed into gear. The
MOST likely cause of this:
ANSWER
D. A broken engine mount
Question 9.
A turbocharged engine is misfiring, and the check engine light is illuminated. A scan for fault codes indicates code P0234 (an
overboost condition). Which of the following could be the cause?
ANSWER
C. A stuck closed wastegate.
Question 10.
Technician A says worn valve guides result in excessive oil consumption. Technician B says aluminum heads have valve guide
inserts. Who is correct?
ANSWER
C. Both A and B
Question 11.
An engine is leaking oil past several oil seals. Technician A says a stuck closed PCV valve would cause these leaks. Technician B
says a clogged crankcase breather tube would result in this condition. Who is correct?
ANSWER
C. Both A and B
Question 12.
Technician A says a rich air-fuel ratio can cause excessive carbon buildup on the engine's valves and pistons. Technician B says
coolant entering the combustion chamber from a faulty head gasket produces excessive carbon buildup on the piston crown. Who is
correct?
ANSWER
A. Technician A
Question 13.
Technician A says piston pin offset locates the piston pin slightly closer to the thrust side of the engine. Technician B says piston side
thrust mainly occurs during the power stroke. Who is correct?
ANSWER
C. Both A and B
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Question 1.
An engine's connecting rod bearings are worn, resulting in low oil pressure and a knocking sound at startup. Which of the following
could be the cause?
ANSWER
D. Both A and B
Question 2.
Technician A says to measure the oil pump gear end-play before reinstalling the pump. Technician B says to use a feeler gauge and
a straight edge to measure oil pump body flatness. Who is correct?
ANSWER
C. Both A and B
Question 3.
The technician in the illustration above is:
ANSWER
B. Setting angle with an angle
Question 4.
The charging light on the instrument panel intermittently flickers while driving. The MOST likely cause of this condition is:
ANSWER
D. A weak accessory belt tensioner.
Question 5.
A vehicle has black-colored exhaust and a lack of power when accelerating. Technician A says a rich air-fuel ratio may have clogged
the catalytic converter. Technician B says to use a back pressure tester to test for a restriction in the exhaust system. Who is correct?
ANSWER
C. Both A and B
Question 6.
Technician A says to use a machinist rule to measure valve tip installed height. Technician B says to use an outside micrometer to
measure valve spring squareness. Who is correct?
ANSWER
A. Technician A
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, Question 7.
Technician A says oil viscosity changes with engine temperature. Technician B says a faulty oil cooler could result in a coolant leak.
Who is correct?
ANSWER
C. Both A and B
Question 8.
A FWD vehicle's steering wheel and dashboard vibrate when the brake pedal is applied, and the transmission is placed into gear. The
MOST likely cause of this:
ANSWER
D. A broken engine mount
Question 9.
A turbocharged engine is misfiring, and the check engine light is illuminated. A scan for fault codes indicates code P0234 (an
overboost condition). Which of the following could be the cause?
ANSWER
C. A stuck closed wastegate.
Question 10.
Technician A says worn valve guides result in excessive oil consumption. Technician B says aluminum heads have valve guide
inserts. Who is correct?
ANSWER
C. Both A and B
Question 11.
An engine is leaking oil past several oil seals. Technician A says a stuck closed PCV valve would cause these leaks. Technician B
says a clogged crankcase breather tube would result in this condition. Who is correct?
ANSWER
C. Both A and B
Question 12.
Technician A says a rich air-fuel ratio can cause excessive carbon buildup on the engine's valves and pistons. Technician B says
coolant entering the combustion chamber from a faulty head gasket produces excessive carbon buildup on the piston crown. Who is
correct?
ANSWER
A. Technician A
Question 13.
Technician A says piston pin offset locates the piston pin slightly closer to the thrust side of the engine. Technician B says piston side
thrust mainly occurs during the power stroke. Who is correct?
ANSWER
C. Both A and B
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