Engine Repair Questions and Answers with Verified Solutions | Latest
2026 Update
Q: is right?
Answer:
A. A only B. B only C. Both A and B D. Neither A nor B A. A only
Q: 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?
Answer:
A. A only B. B only C. Both A and B D. Neither A nor B B. B only
Q: 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?
Answer:
A. Cooling fan problem. B. Radiator cap problem. C. Leaking radiator. D. Faulty
water pump. A. Cooling fan problem.
,Engine Repair Questions and Answers with Verified Solutions | Latest
2026 Update
Q: 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?
Answer:
Q: A. A only
Answer:
B. B only
C. Both A and B
D. Neither A nor B D. Neither A nor B
Q: An engine is being overhauled. After complete engine disassembly which of
these procedures should be performed first?
Answer:
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.
,Engine Repair Questions and Answers with Verified Solutions | Latest
2026 Update
Q: 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?
Answer:
A. A steel plate. B. An aluminum plate. C. A piece of cardboard. D. A piece of
wood. D. A piece of wood.
Q: Blue smoke is coming out of the tail pipe of a vehicle equipped with a gasoline
engine. This
Answer:
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.
, Engine Repair Questions and Answers with Verified Solutions | Latest
2026 Update
Q: 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?
Answer:
A. A only B. B only C. Both A and B D. Neither A nor B B. B only
Q: 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?
Answer:
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.
Q: 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?
Answer:
A. A only B. B only C. Both A and B D. Neither A nor B B. B only
2026 Update
Q: is right?
Answer:
A. A only B. B only C. Both A and B D. Neither A nor B A. A only
Q: 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?
Answer:
A. A only B. B only C. Both A and B D. Neither A nor B B. B only
Q: 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?
Answer:
A. Cooling fan problem. B. Radiator cap problem. C. Leaking radiator. D. Faulty
water pump. A. Cooling fan problem.
,Engine Repair Questions and Answers with Verified Solutions | Latest
2026 Update
Q: 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?
Answer:
Q: A. A only
Answer:
B. B only
C. Both A and B
D. Neither A nor B D. Neither A nor B
Q: An engine is being overhauled. After complete engine disassembly which of
these procedures should be performed first?
Answer:
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.
,Engine Repair Questions and Answers with Verified Solutions | Latest
2026 Update
Q: 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?
Answer:
A. A steel plate. B. An aluminum plate. C. A piece of cardboard. D. A piece of
wood. D. A piece of wood.
Q: Blue smoke is coming out of the tail pipe of a vehicle equipped with a gasoline
engine. This
Answer:
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.
, Engine Repair Questions and Answers with Verified Solutions | Latest
2026 Update
Q: 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?
Answer:
A. A only B. B only C. Both A and B D. Neither A nor B B. B only
Q: 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?
Answer:
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.
Q: 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?
Answer:
A. A only B. B only C. Both A and B D. Neither A nor B B. B only
