2-19.
As a precaution against error, it
is a good practice for two persons
to take the liner measurement and
then compare and check any
discrepancy between the two sets
of readings.
1.
True
2.
False
2-20.
Which of the following conditions
is NOT a cause of abnormal liner
wear?
1.
Insufficient lubrication
2.
Dirt in the lube oil
3.
Improper starting procedure
4.
High cooling water temperature
2-21.
Under which of the following
conditions are corrosive vapors
most likely to condense on the
cylinder liner walls of an engine?
1.
While operating at
temperatures exceeding normal
2.
While operating with the lube
oil pressure below normal
3.
While warming up after it is
first started
4.
While operating in such a way
that normal lube oil pressure
is exceeded
2-22.
You are removing a cylinder liner
from an engine. When fastening
the special liner puller to the
liner studs, why must you tighten
the cap nuts by hand instead of by
wrench?
1.
Because the nuts cannot be
reached with a wrench
2.
Because the cylinder liner
could be scratched with a
wrench
3.
Because threads on both nuts
and studs could be damaged by
a wrench
4.
Because there is some danger
that a wrench could be left in
the cylinder liner
2-23.
You are inspecting a cylinder head
for cracks.
Which of the
following is NOT a correct
procedure to use?
1.
Perform a compression test
2.
After bringing the piston of
each cylinder to top dead
center. apply compressed air
3.
Examine by sight or with
magnetic powder
4.
Perform the hydrostatic test
that is used on a
water-jacketed cylinder
2-24.
The gaskets, which are used
between the mating surfaces of the
head and the block of an engine,
give this joint which of the
following characteristics?
1.
Acid resistance
2.
Protection against leakage
3.
Rigidity
4.
Correct shape
2-25.
What should you do if you discover
a warped or distorted cylinder
head during an inspection?
1.
Machine the head to correct
tolerance
2.
Replace the head as soon as
possible
3.
Overtorque the head to
compensate for the warpage
4.
Reduce the load on the engine
2-26.
Which of the following symptoms
does NOT indicate fouling in the
combustion chambers?
1.
Excessive oil pumping
2.
Smoky exhaust
3.
Loss of power
4.
Low compression
2-27.
Which of the following valve
problems will cause a valve to
hang open?
1.
Burned valve
2.
Floating valve
3.
Sticking valve
4.
Bent valve
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