Engine Construction & Installation Exam Questions & Answers.
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Engine Construction & Installation Exam Questions & Answers.
When the camshaft is located within the engine block, the valve train may consist of ____________.
A. valve lifters
B. push rods
C. rocker levers
D. All of the above - CORRECT ANSWER D. All of the above
If an engine is describ...
Engine Construction & Installation Exam
Questions & Answers.
When the camshaft is located within the engine block, the valve train may consist of ____________.
A. valve lifters
B. push rods
C. rocker levers
D. All of the above - CORRECT ANSWER D. All of the above
If an engine is described as square, which of the following would be true?
A. Must be a 90 degree V configuration
B. Bore and stroke dimensions are equal
C. Flat configuration
D. Must be an in-line 4 or 6 cylinder - CORRECT ANSWER B. Bore and stroke dimensions are equal
A camshaft may directly control the operation of ____________.
A. intake valves
B. exhaust valves
C. unit type injector
D. All of the above - CORRECT ANSWER D. All of the above
List the four strokes in order starting with the intake.
A. Intake, exhaust, power, and compression.
B. Intake, compression, exhaust, and power.
C. Intake, power, compression and exhaust.
D. Intake, compression, power, and exhaust. - CORRECT ANSWER D. Intake, compression, power, and
exhaust.
,Valve overlap helps with ____________.
A. cylinder scavenging
B. cooling the exhaust valve
C. cooling the piston crown
D. All of the above - CORRECT ANSWER D. All of the above
Swept volume is defined as the volume of air displaced ____________.
A. as piston moves from TDC to BDC
B. as a piston moves up on the exhaust stroke
C. as piston is located at overlap position
D. None of the above - CORRECT ANSWER A. as piston moves from TDC to BDC
A internal combustion engine that relies on atmospheric pressure to charge the cylinders with air, is
known as ____________.
A. turbocharged
B. super charged
C. naturally aspirated
D. boosted - CORRECT ANSWER C. naturally aspirated
Which of the following terms is used to describe the overall breathing efficiency of an engine?
A. volumetric efficiency
B. combustion efficiency
C. scavenging
D. thermal efficiency - CORRECT ANSWER A. volumetric efficiency
Which of the following is true of the term clearance volume?
A. Cylinder volume with piston at BDC
B. Cylinder volume with piston removed
C. Volume of a pre-combustion chamber
, D. Cylinder volume with piston at TDC - CORRECT ANSWER D. Cylinder volume with piston at TDC
Desired maximum cylinder pressure should occur?
A. 10-15 degrees BTDC
B. 10-15 degrees BBDC
C. 3 degrees ATDC
D. 10-15 degrees ATDC - CORRECT ANSWER D. 10-15 degrees ATDC
Which of the following does most to define the piston stroke dimension?
A. Clearance volume
B. Crank throw dimension
C. Connecting rod length
D. Swept volume - CORRECT ANSWER B. Crank throw dimension
How many crankshaft rotations are needed to complete all four strokes of a four stroke engine?
A. 4
B. 2
C. 1
D. 3 - CORRECT ANSWER B. 2
The compression stroke of a four-cycle diesel engine, begins when ____________.
A. the exhaust valve opens
B. the exhaust valves closes
C. the intake valve opens
D. the intake valve closes - CORRECT ANSWER D. the intake valve closes
In a block mounted camshaft engine, which component connects the roller type cam follower to the
rocker lever?
A. Valve guide
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