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Engine Repair Final Exam Questions and
Correct Answers/ Latest Update / Already
Graded
Which one of the following is NOT a stroke of the four-stroke cycle?
A) intake
B) compression
C) ignition
D) exhaust
Ans: C) ignition
What is compression ratio?
A) the diameter of the cylinder
B) cylinder arrangement
C) the ratio of the air to fuel mixture
D) none of these answers is correct
Ans: D) none of these answers is correct
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To complete a four-stroke cycle in one cylinder, the crankshaft must
rotate _____ degrees.
A) 180
B) 360
C) 540
D) 720
Ans: D) 720
On a 4-cylinder engine that has a firing order of 1342, if number 1
cylinder is on the exhaust stroke, what stroke is number 3 cylinder on?
A) intake
B) compression
C) power
D) exhaust
Ans: C) power
The stroke of an engine is _____ that of a crankshaft throw.
All rights reserved © 2025/ 2026 |
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A) half
B) twice
C) four times
D) equal to
Ans: B) twice
The volume of the combustion chamber when the piston is at BDC
divided by the volume of the chamber when the piston is at TDC is
called _____.
A) displacement
B) compression ratio
C) volumetric efficiency
D) mechanical efficiency
Ans: B) compression ratio
Which of the following engine problems may be indicated by good
results from a compression test and a cylinder leakage test but poor
results from a cylinder power balance test?
A) incorrect valve timing
All rights reserved © 2025/ 2026 |
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B) collapsed lifter
C) burnt intake valve
D) worn piston rings
Ans: B) collapsed lifter
The component connected to the crankshaft that serves to store some
of the engine's power is the _____.
A) flywheel
B) connecting rod
C) piston
D) main bearing
Ans: A) flywheel
Which V-type engine valve train design may use four camshafts?
A) OHC
B) DOHC
C) OHV
D) DOHV
All rights reserved © 2025/ 2026 |
Engine Repair Final Exam Questions and
Correct Answers/ Latest Update / Already
Graded
Which one of the following is NOT a stroke of the four-stroke cycle?
A) intake
B) compression
C) ignition
D) exhaust
Ans: C) ignition
What is compression ratio?
A) the diameter of the cylinder
B) cylinder arrangement
C) the ratio of the air to fuel mixture
D) none of these answers is correct
Ans: D) none of these answers is correct
All rights reserved © 2025/ 2026 |
, Page |2
To complete a four-stroke cycle in one cylinder, the crankshaft must
rotate _____ degrees.
A) 180
B) 360
C) 540
D) 720
Ans: D) 720
On a 4-cylinder engine that has a firing order of 1342, if number 1
cylinder is on the exhaust stroke, what stroke is number 3 cylinder on?
A) intake
B) compression
C) power
D) exhaust
Ans: C) power
The stroke of an engine is _____ that of a crankshaft throw.
All rights reserved © 2025/ 2026 |
, Page |3
A) half
B) twice
C) four times
D) equal to
Ans: B) twice
The volume of the combustion chamber when the piston is at BDC
divided by the volume of the chamber when the piston is at TDC is
called _____.
A) displacement
B) compression ratio
C) volumetric efficiency
D) mechanical efficiency
Ans: B) compression ratio
Which of the following engine problems may be indicated by good
results from a compression test and a cylinder leakage test but poor
results from a cylinder power balance test?
A) incorrect valve timing
All rights reserved © 2025/ 2026 |
, Page |4
B) collapsed lifter
C) burnt intake valve
D) worn piston rings
Ans: B) collapsed lifter
The component connected to the crankshaft that serves to store some
of the engine's power is the _____.
A) flywheel
B) connecting rod
C) piston
D) main bearing
Ans: A) flywheel
Which V-type engine valve train design may use four camshafts?
A) OHC
B) DOHC
C) OHV
D) DOHV
All rights reserved © 2025/ 2026 |
