4-10.
What is the maximum presser foot lift
for the 111 W 155 sewing machine?
1.
One-half in.
2.
One-eighth in.
3.
Three-fourths in.
4.
Three-sixteenths in.
4-11.
What is the maximum presser foot lift for
the 111 W 151 sewing machine?
1.
One-half in.
2.
Three-eighths in.
3.
Three-fourths in.
4.
Three-sixteenths in.
4-12. The 111 W 155 and 111 W 151 are similar
In most features EXCEPT that the
111 W 151 has only one
1.
feed drive eccentric
2.
presser foot
3.
oiling point
4.
feed dog
4-13.
An accumulation of dust and lint will
cause the same sluggish operation problem
as a loose puny belt.
1.
True
2.
False
4-14.
New sewing machines should be cleaned to
remove corrosion preventive substances
that were applied at the factory.
What
substance is used to remove corrosion
preventive substances?
1.
Stoddard solvent
2.
Freon 113
3.
Diesel fuel
4. JP-5
4-15.
After using a sewing machine, you should
clean and oil it.
1.
True
2.
False
4-16.
Compressed air should never be used to
clean a sewing machine.
1.
True
2.
False
4-17.
An excessive amount of oil on the working
parts of any sewing machine will probably
result in which of the following
conditions?
1.
The oil will dry out and cause grease
to form on friction surfaces
2.
The oil will drip on materials being
sewn and soil the project
3.
The oil will accumulate in the drip
pan and overflow on the drive motor
4.
The oil will cause condensation that
will drip into the drive motor
4-18.
Hard to reach places on the sewing
machine may be cleaned with
1.
a medium soft bristle brush only
2.
low pressure air only
3.
a medium soft bristle brush and
low pressure air
4-19.
At what minimum interval should sewing
machines be given a through cleaning and
oiling?
1.
Every 3 mo
2.
Every 6 mO
3.
Every 12 mo
4.
Every 18 mo
4-20.
A clean dust cloth should be used to
clean all sewing machine parts EXCEPT
the
1.
head
2.
oil pan
3.
motor casing
4.
arm shaft
4-21.
If unable to obtain the recommended types
of oil required by the manufacturer, you
may use which of the following oils as a
substitute?
1.
Cod oil
2.
Turbine oil
3.
Mineral oil
4.
STP oil treatment
4-22.
Continual malfunction of a sewing machine
is most likely caused by which of the
following conditions?
1.
Electrical lead unplugged
2.
Out of timing sequence
3.
Lack of lubrication
4.
Drive motor wired backwards
16