ENGINE REPAIR FINAL EXAM 2026/2027
QUESTIONS AND CORRECT ANSWERS GRADED
A+
The _______________absorb(s) rotational pulses generated by the sequential
firing of the cylinders.
A. Flywheel
B. Counterweights
C. Valve springs
D. Main bearings
A
In a 6 cylinder the crank pins are spaced __________ degrees apart.
A. 90
B. 120
C. 180
D. 60
B
Technician A says that some engine designs include additional rotating shafts with
counterweights that create equal but opposite dynamic forces to more effectively
cancel out engine vibration. Technician B says that to be effective, these balance
shafts must be properly timed to the crankshaft and to each other. Who is correct?
Both
,Technician A says that Toyota engines use two intake valves and two exhaust
valves per cylinder. Technician B says that cam lobes for each cylinder operate the
two intake valve assemblies simultaneously. Who is correct?
Both
Technician A says that how far the valve opens is determined by the cam's
duration. Technician B says that the lift of the valve opening is determined by the
width of the lobe. Who is correct?
Neither
Without this clearance, the cam could press down slightly on the lifter at all times
after engine warm-up, preventing the valve from closing fully. This clearance is
called_________.
A. Valve lash
B. Valve spacing
C. Camshaft clearance
D. Thrust clearance
A
_________ is the amount of torque necessary to turn a component.
A. High torque
B. Starting torque
C. Rotating torque
,D. Angle torque
C
A _________ is used to check the calibration of a torque wrench.
A. Torque angle meter
B. Pressure gauge
C. Comparator
D. Engine torque analyzer
C
A bolt stretched into its _________ will not return to its original shape and size
when removed.
A. Elastic range
B. Plastic range
C. Tensile range
D. Original range
B
Technician A says that the two types of dial indicator faces are balanced and
continuous read out. Technician B says that a continuous dial indicator face will
have a plus or minus reading. Which technician is correct?
Tech A
, Technician A says that horizontally opposed engine designs lower the vehicles
center of gravity. Technician B says that rotary engines have a better power to
weight ratio. Who is correct?
Both
Technician A says that gasoline engines can operate without stalling with air fuel
ratios ranging from 6:1 to 20:1. Technician B says that stoichiometry is achieved at
14.7:1. Who is correct?
Tech B
Feeler gauges can be used for all of the following measurements EXCEPT:
A. Thrust clearance
B. Piston ring side clearance
C. Cylinder head flatness
D. Connecting rod oil clearance
D
Technician A says that engine displacement is the volume of the cylinder at bottom
dead center multiplied by the number of cylinders. Technician B says that top dead
center is the highest point in the piston's stroke. Which technician is correct?
Both
The higher the ___________________, the more energy can be extracted from the
combustion process.
QUESTIONS AND CORRECT ANSWERS GRADED
A+
The _______________absorb(s) rotational pulses generated by the sequential
firing of the cylinders.
A. Flywheel
B. Counterweights
C. Valve springs
D. Main bearings
A
In a 6 cylinder the crank pins are spaced __________ degrees apart.
A. 90
B. 120
C. 180
D. 60
B
Technician A says that some engine designs include additional rotating shafts with
counterweights that create equal but opposite dynamic forces to more effectively
cancel out engine vibration. Technician B says that to be effective, these balance
shafts must be properly timed to the crankshaft and to each other. Who is correct?
Both
,Technician A says that Toyota engines use two intake valves and two exhaust
valves per cylinder. Technician B says that cam lobes for each cylinder operate the
two intake valve assemblies simultaneously. Who is correct?
Both
Technician A says that how far the valve opens is determined by the cam's
duration. Technician B says that the lift of the valve opening is determined by the
width of the lobe. Who is correct?
Neither
Without this clearance, the cam could press down slightly on the lifter at all times
after engine warm-up, preventing the valve from closing fully. This clearance is
called_________.
A. Valve lash
B. Valve spacing
C. Camshaft clearance
D. Thrust clearance
A
_________ is the amount of torque necessary to turn a component.
A. High torque
B. Starting torque
C. Rotating torque
,D. Angle torque
C
A _________ is used to check the calibration of a torque wrench.
A. Torque angle meter
B. Pressure gauge
C. Comparator
D. Engine torque analyzer
C
A bolt stretched into its _________ will not return to its original shape and size
when removed.
A. Elastic range
B. Plastic range
C. Tensile range
D. Original range
B
Technician A says that the two types of dial indicator faces are balanced and
continuous read out. Technician B says that a continuous dial indicator face will
have a plus or minus reading. Which technician is correct?
Tech A
, Technician A says that horizontally opposed engine designs lower the vehicles
center of gravity. Technician B says that rotary engines have a better power to
weight ratio. Who is correct?
Both
Technician A says that gasoline engines can operate without stalling with air fuel
ratios ranging from 6:1 to 20:1. Technician B says that stoichiometry is achieved at
14.7:1. Who is correct?
Tech B
Feeler gauges can be used for all of the following measurements EXCEPT:
A. Thrust clearance
B. Piston ring side clearance
C. Cylinder head flatness
D. Connecting rod oil clearance
D
Technician A says that engine displacement is the volume of the cylinder at bottom
dead center multiplied by the number of cylinders. Technician B says that top dead
center is the highest point in the piston's stroke. Which technician is correct?
Both
The higher the ___________________, the more energy can be extracted from the
combustion process.
