AUTO REPAIR TECHNICIAN LESSON 3 QUESTIONS AND
CORRECT DETAILED ANSWERS [VERIFIED ANSWERS]
|LATEST UPLOAD |ALREADY GRADED A+
Technician A says that if a valve is open when a piston rises to the very top of a
cylinder, the piston may actually strike the valve head and cause serious engine
damage. Technician B says if the camshaft is located in the engine block, then the
engine is called an overhead valve engine, OHV engine, or an in-block camshaft
Who is right?
a.) Neither A nor B
b.) B only
c.) A only
d.) Both A and B - ANS -Both A and B
Which of the following components serves as both a cover for the bottom of the
engine block and a reservoir for engine oil?
a.) Valve cover
b.) Front cover
c.) Oil pan
d.) Lubrication retainer - ANS -Oil pan
What engine component is shown in the above Figure?
a.) End bearing
b.) Thrust bearing
c.) Camshaft bearing
, d.) Main bearing - ANS -Camshaft bearing - A typical camshaft bearing is shown
here. Most engines use full-circle bearings to support their camshafts. Note that
this bearing contains oil holes to allow lubrication by the oil pump system.
Fill in the blank label in the above figure.
a.) Bridge
b.) Cleave
b.) Margin
c.) Gap - ANS -Margin - The small area between the valve head and valve face is
called the valve margin. The valve margin is important to the operation of the
valve. If the valve margin is too thin, the intense heat inside the engine will simply
melt the margin away and prevent the valve from sealing. A melted or burned
valve margin is commonly called a burnt valve.
Look at the engine shown in the figure. What type of valve system does the
engine shown in this figure contain?
a.) An overhead valve design with hydraulic lifters
b.) An overhead camshaft design with solid lifters (WRONG)
c.) An overhead valve design with solid lifters
d.) An overhead camshaft design with hydraulic lifters - ANS -An overhead valve
design with solid lifters - An Adjustable Rocker Arm Assembly
In most engines, the head of the intake valve is _____ the head of the exhaust
valve.
a.) the same size as
b.) a different shape than
c.) much smaller than
CORRECT DETAILED ANSWERS [VERIFIED ANSWERS]
|LATEST UPLOAD |ALREADY GRADED A+
Technician A says that if a valve is open when a piston rises to the very top of a
cylinder, the piston may actually strike the valve head and cause serious engine
damage. Technician B says if the camshaft is located in the engine block, then the
engine is called an overhead valve engine, OHV engine, or an in-block camshaft
Who is right?
a.) Neither A nor B
b.) B only
c.) A only
d.) Both A and B - ANS -Both A and B
Which of the following components serves as both a cover for the bottom of the
engine block and a reservoir for engine oil?
a.) Valve cover
b.) Front cover
c.) Oil pan
d.) Lubrication retainer - ANS -Oil pan
What engine component is shown in the above Figure?
a.) End bearing
b.) Thrust bearing
c.) Camshaft bearing
, d.) Main bearing - ANS -Camshaft bearing - A typical camshaft bearing is shown
here. Most engines use full-circle bearings to support their camshafts. Note that
this bearing contains oil holes to allow lubrication by the oil pump system.
Fill in the blank label in the above figure.
a.) Bridge
b.) Cleave
b.) Margin
c.) Gap - ANS -Margin - The small area between the valve head and valve face is
called the valve margin. The valve margin is important to the operation of the
valve. If the valve margin is too thin, the intense heat inside the engine will simply
melt the margin away and prevent the valve from sealing. A melted or burned
valve margin is commonly called a burnt valve.
Look at the engine shown in the figure. What type of valve system does the
engine shown in this figure contain?
a.) An overhead valve design with hydraulic lifters
b.) An overhead camshaft design with solid lifters (WRONG)
c.) An overhead valve design with solid lifters
d.) An overhead camshaft design with hydraulic lifters - ANS -An overhead valve
design with solid lifters - An Adjustable Rocker Arm Assembly
In most engines, the head of the intake valve is _____ the head of the exhaust
valve.
a.) the same size as
b.) a different shape than
c.) much smaller than
