2-48.
To scrape the top of a cylinder
bore before pulling the piston,
you should use which of the
following tools?
1.
A power grinder
2.
A file
3.
A metal scraper
4.
An emery cloth
2-49.
When using a brass drift to remove
a frozen piston ring, you must
avoid damaging which of the
following parts?
1.
The ring
2.
The drift
3.
The camshaft
4.
The land
2-50.
Piston ring gaps are measured (a)
with what tool and (b) in what
location?
1.
(a) A micrometer;
(b) on the piston
2.
(a) A feeler gauge;
(b) in the cylinder liner
3.
(a) A feeler gauge;
(b) in the vise
4.
(a) A micrometer;
(b) in the cylinder liner
2-51.
In addition to ring gap, what
other factor must you measure to
ensure correct ring fit?
1.
Ring end gap
2.
Ring-to-land clearance
3.
Ring width
4.
Ring circumference
2-52.
Operation of an internal
combustion engine above the
specified temperature limits may
result in which of the following
problems?
2-53.
If the oil flow to a piston is
restricted, where will the
deposits caused by oxidation or
the oil form?
1.
On the underside or the piston
crown
2.
Behind the compression rings
3.
On the piston walls
4.
On the topside of the piston
crown
2-54.
You are installing a new sleeve
bearing.
Which of the following
procedures will make it easier to
insert the new sleeve bearing?
1.
Apply plenty of grease to the
bushing
2.
Shrink the piston with dry ice
3.
Shrink the sleeve bearing with
dry ice
4.
Heat the sleeve bearing in the
oven
2-55.
What is the primary reason piston
pin bushings are reamed?
1.
To enlarge oil holes
2.
To obtain correct lubricating
flukes
3.
To obtain proper bore
clearance
4.
To correct oil hole
positioning
2-56.
To measure the clearance between a
piston pin and its bushing, which
of the following items should you
use?
1.
Micrometers
2.
Feeler gauges
3.
Leads
4.
Prussian blue
1.
Lack of lubrication of the
cylinder walls
2.
Low cylinder temperatures
3.
Increased oil viscosity
4.
Low oil temperatures
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