Engine Repair Exam Questions with Correct Answers 100% Verified|
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Tech A says that an engine should be at ambient temperature before removing the cylinder
head. Tech B says that cylinder head bolts should be removed in a left-to-right sequence. Who
is right?
A. A only
B. B only
C. Both A and B
D. Neither A nor B A. A only
A vehicle is towed into the shop because of a no-start condition. The cranking vacuum is 0 in.
Hg. Tech A says that a partially restricted catalytic converter could be the cause. Tech B says
that a broken timing belt/chain could be the cause. Who is right?
A. A only
B. B only
C. Both A and B
D. Neither A nor B B. B only
A customer complains that the engine coolant temperature light comes on when the car idles in
heavy traffic, but goes off under normal driving conditions. Which of these could be the cause?
A. Cooling fan problem.
B. Radiator cap problem.
C. Leaking radiator.
D. Faulty water pump. A. Cooling fan problem.
While performing a cylinder leakage test, air can be heard coming out of the throttle body. Tech
A says that a leaking manifold could be the cause.Tech B says that worn piston rings could be
the cause. Who is right?
,A. A only
B. B only
C. Both A and B
D. Neither A nor B D. Neither A nor B
An engine is being overhauled. After complete engine disassembly which of these procedures
should be performed first?
A. Measure the cylinder taper.
B. Clean the engine block.
C. Hone the cylinder walls.
D. Measure the main bore alignment. B. Clean the engine block.
A technician is replacing engine mounts using the setup in the illustration shown. Which of
these should be placed between the jack and the engine pan?
A. A steel plate.
B. An aluminum plate.
C. A piece of cardboard.
D. A piece of wood. D. A piece of wood.
Blue smoke is coming out of the tail pipe of a vehicle equipped with a gasoline engine. This
could be caused by:
A. A leaking fuel injector.
B. A leaking water pump.
C. A worn camshaft.
D. Worn piston rings. D. Worn piston rings.
, An engine equipped with multi-port fuel injection has a misfire. Secondary ignition and
compression are OK. Tech A says that an open primary ignition circuit could be the cause. Tech
B says that a clogged fuel injector could be the cause. Who is right?
A. A only
B. B only
C. Both A and B
D. Neither A nor B B. B only
The valve cover gasket on the left side of a V-8 engine continues to leak after several
replacements. Which of these could be the cause?
A. A plugged PVC valve.
B. A broken rocker arm.
C. A plugged oil return hole in the head.
D. A plugged crank case breather. C. A plugged oil return hole in the head.
It is determined that engine oil has contaminated the coolant. Tech A says that a failed oil filter
could be the cause. Tech B says that a failed head gasket could be the cause. Who is right?
A. A only
B. B only
C. Both A and B
D. Neither A nor B B. B only
A vehicles excessive oil consumption is being diagnosed. Tech A says that worn valve seals could
be the cause. Tech B says worn turbocharger seals could be the cause. Who is right?
A. A only
B. B only
C. Both A and B
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Tech A says that an engine should be at ambient temperature before removing the cylinder
head. Tech B says that cylinder head bolts should be removed in a left-to-right sequence. Who
is right?
A. A only
B. B only
C. Both A and B
D. Neither A nor B A. A only
A vehicle is towed into the shop because of a no-start condition. The cranking vacuum is 0 in.
Hg. Tech A says that a partially restricted catalytic converter could be the cause. Tech B says
that a broken timing belt/chain could be the cause. Who is right?
A. A only
B. B only
C. Both A and B
D. Neither A nor B B. B only
A customer complains that the engine coolant temperature light comes on when the car idles in
heavy traffic, but goes off under normal driving conditions. Which of these could be the cause?
A. Cooling fan problem.
B. Radiator cap problem.
C. Leaking radiator.
D. Faulty water pump. A. Cooling fan problem.
While performing a cylinder leakage test, air can be heard coming out of the throttle body. Tech
A says that a leaking manifold could be the cause.Tech B says that worn piston rings could be
the cause. Who is right?
,A. A only
B. B only
C. Both A and B
D. Neither A nor B D. Neither A nor B
An engine is being overhauled. After complete engine disassembly which of these procedures
should be performed first?
A. Measure the cylinder taper.
B. Clean the engine block.
C. Hone the cylinder walls.
D. Measure the main bore alignment. B. Clean the engine block.
A technician is replacing engine mounts using the setup in the illustration shown. Which of
these should be placed between the jack and the engine pan?
A. A steel plate.
B. An aluminum plate.
C. A piece of cardboard.
D. A piece of wood. D. A piece of wood.
Blue smoke is coming out of the tail pipe of a vehicle equipped with a gasoline engine. This
could be caused by:
A. A leaking fuel injector.
B. A leaking water pump.
C. A worn camshaft.
D. Worn piston rings. D. Worn piston rings.
, An engine equipped with multi-port fuel injection has a misfire. Secondary ignition and
compression are OK. Tech A says that an open primary ignition circuit could be the cause. Tech
B says that a clogged fuel injector could be the cause. Who is right?
A. A only
B. B only
C. Both A and B
D. Neither A nor B B. B only
The valve cover gasket on the left side of a V-8 engine continues to leak after several
replacements. Which of these could be the cause?
A. A plugged PVC valve.
B. A broken rocker arm.
C. A plugged oil return hole in the head.
D. A plugged crank case breather. C. A plugged oil return hole in the head.
It is determined that engine oil has contaminated the coolant. Tech A says that a failed oil filter
could be the cause. Tech B says that a failed head gasket could be the cause. Who is right?
A. A only
B. B only
C. Both A and B
D. Neither A nor B B. B only
A vehicles excessive oil consumption is being diagnosed. Tech A says that worn valve seals could
be the cause. Tech B says worn turbocharger seals could be the cause. Who is right?
A. A only
B. B only
C. Both A and B
