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Engine repair midterm Questions and Correct
Answers/ Latest Update / Already Graded
Which of the following is not a metal that is plated over a steel backing for use as
an engine bearing? A. Aluminum. B. Babbitt. C. Copper. D. Magnesium.
Ans: D
Which of the following methods is used to secure a full-floating piston pin in the
piston? A. Cotter pins. B. Snap rings. C. Staking. D. Threaded inserts.
Ans: B
The face of a compression ring may be _____ to speed the process of ring
seating. A. grooved B. chamfered C. tapered D. counterbored
Ans: A
A piston head can reach operating temperatures as high as ______ °F. А. 450 B.
500 C. 650 D. 700
Ans: C
The difference between piston ring width and ring groove width determines
______ A. ring gap B. ring side clearance C. ring wall thickness D. ring back
clearance
Ans: B
A customer returned to complain about a smoking problem with the vehicle's
newly-rebuilt engine. Technician A says the cause of the problem is the use of
rings with hard coatings. Technician B says the problem is caused by incorrect
ring side clearance. Who is right? A. A only. В. В only. C. Both A and B D.
Neither A nor B
© 2025/ 2026 | ® All rights reserved
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Ans: A
The most common type of cam drive on cam-in-block engines is the timing
______ A. belt B. chain C. reducer D. gear
Ans: B
The ______ is a heavy wheel mounted on a rubber ring and keved to the
erankshaft snout. A. dynamic tuner B. oscillation damper C. harmonic balancer D.
vibration snubber
Ans: C
Technician A says that timing marks are not necessary when a timing belt is used.
Technician B says that timing marks are unnecessary only with timing gears. Who
is right? A. A only. B. B only. C. Both A and B D. Neither A nor B.
Ans: D
Which of the items below is a measurement of the usable horsepower at the
engine crankshaft? A. Indicated horsepower. B. Net horsepower. C) Brake
horsepower. D. Gross horsepower.
Ans: C
Engine displacement is usually matched to what? A. Engine torque. B) Weight of
the vehicle. C. Horsepower of the vehicle. D. Type of fuel pump in the vehicle.
Ans: B
Which of the following is not a function of the lubrication system? A. Removing
contaminants from inside engine. B. Reducing friction and wear between moving
© 2025/ 2026 | ® All rights reserved
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parts. C. Cutting power loss; increasing fuel economy. D Maintaining smooth
power flow through drivetrain.
Ans: D
An oil pump that uses two star-shaped rotors to move and pressurize oil is
usually referred to as a ______ pump. A. centrifugal B. lobe C. rotary D. gear
Ans: C
The ______ protects the atmosphere from fumes by burning them inside the
engine. A. positive crankcase ventilation system B. low oil pressure safety circuit
C. filter bypass valve D. pressure relief valve
Ans: A
While discussing oil pump drive methods, Technician A says an oil pump can be
driven by a cogged belt. Technician B says an oil pump can be driven by an engine
timing gear. Who is right? A. A only. B. B only. C Both A and B. D. Neither A nor
B.
Ans: C
Oil pressure should be approximately _______ psi at cruising speeds. A. 15-20 B.
20-30 C) 40-60 D. 70-85
Ans: C
Oil dye is sometimes added to motor oil to ______ A. detect leaks B. detect
contaminants C. destroy corrosive chemicals D. determine frequency of oil
changes
Ans: A
© 2025/ 2026 | ® All rights reserved
Engine repair midterm Questions and Correct
Answers/ Latest Update / Already Graded
Which of the following is not a metal that is plated over a steel backing for use as
an engine bearing? A. Aluminum. B. Babbitt. C. Copper. D. Magnesium.
Ans: D
Which of the following methods is used to secure a full-floating piston pin in the
piston? A. Cotter pins. B. Snap rings. C. Staking. D. Threaded inserts.
Ans: B
The face of a compression ring may be _____ to speed the process of ring
seating. A. grooved B. chamfered C. tapered D. counterbored
Ans: A
A piston head can reach operating temperatures as high as ______ °F. А. 450 B.
500 C. 650 D. 700
Ans: C
The difference between piston ring width and ring groove width determines
______ A. ring gap B. ring side clearance C. ring wall thickness D. ring back
clearance
Ans: B
A customer returned to complain about a smoking problem with the vehicle's
newly-rebuilt engine. Technician A says the cause of the problem is the use of
rings with hard coatings. Technician B says the problem is caused by incorrect
ring side clearance. Who is right? A. A only. В. В only. C. Both A and B D.
Neither A nor B
© 2025/ 2026 | ® All rights reserved
, 2 | Page
Ans: A
The most common type of cam drive on cam-in-block engines is the timing
______ A. belt B. chain C. reducer D. gear
Ans: B
The ______ is a heavy wheel mounted on a rubber ring and keved to the
erankshaft snout. A. dynamic tuner B. oscillation damper C. harmonic balancer D.
vibration snubber
Ans: C
Technician A says that timing marks are not necessary when a timing belt is used.
Technician B says that timing marks are unnecessary only with timing gears. Who
is right? A. A only. B. B only. C. Both A and B D. Neither A nor B.
Ans: D
Which of the items below is a measurement of the usable horsepower at the
engine crankshaft? A. Indicated horsepower. B. Net horsepower. C) Brake
horsepower. D. Gross horsepower.
Ans: C
Engine displacement is usually matched to what? A. Engine torque. B) Weight of
the vehicle. C. Horsepower of the vehicle. D. Type of fuel pump in the vehicle.
Ans: B
Which of the following is not a function of the lubrication system? A. Removing
contaminants from inside engine. B. Reducing friction and wear between moving
© 2025/ 2026 | ® All rights reserved
, 3 | Page
parts. C. Cutting power loss; increasing fuel economy. D Maintaining smooth
power flow through drivetrain.
Ans: D
An oil pump that uses two star-shaped rotors to move and pressurize oil is
usually referred to as a ______ pump. A. centrifugal B. lobe C. rotary D. gear
Ans: C
The ______ protects the atmosphere from fumes by burning them inside the
engine. A. positive crankcase ventilation system B. low oil pressure safety circuit
C. filter bypass valve D. pressure relief valve
Ans: A
While discussing oil pump drive methods, Technician A says an oil pump can be
driven by a cogged belt. Technician B says an oil pump can be driven by an engine
timing gear. Who is right? A. A only. B. B only. C Both A and B. D. Neither A nor
B.
Ans: C
Oil pressure should be approximately _______ psi at cruising speeds. A. 15-20 B.
20-30 C) 40-60 D. 70-85
Ans: C
Oil dye is sometimes added to motor oil to ______ A. detect leaks B. detect
contaminants C. destroy corrosive chemicals D. determine frequency of oil
changes
Ans: A
© 2025/ 2026 | ® All rights reserved
