Assignment 7
Textbook Assignment:
“Sewing Machines.”
Pages 9-1 through 9–39.
7-1.
7-2.
7–.3.
7–4.
7-5.
Learning Objective:
Identify
types, operating characteristics,
components, and functions of
sewing machines used by the PR.
Sewing machines are classified as
how many basic types?
1.
One
2.
Two
3.
Three
4.
Four
Which of the following parts of a
sewing machine forms the stitch?
1.
Rotary hook
2.
Oscillating shuttle
3.
Both 1 and 2 above
4.
Thread take-up lever
Which of the following types of
stitches is most commonly used
and made by sewing machines?
1.
Lock stitch
2.
Chain stitch
3.
Compound stitch
4.
Either 2 or 3 above,
depending on the model of
machine
Sewing machines have how many
basic parts?
1.
One
2.
Two
3.
Three
4.
Four
Material that is being sewn on a
sewing machine is held in posi-
tion by
parts?
1.
The
2.
The
3.
The
4.
The
which of the following
needle bar
pressure foot
feed dogs
pressure bar
7-6.
7-7.
7-8.
7–9.
7-10.
7-11.
Which of the following machines
is classified as an oscillating
machine?
1.
211 w 155
2.
111 w 151
3.
111 w 155
4.
31-15
What is the recommended stitches
per minute for the 31-15 machine?
1.
1,500
2.
2,000
3.
2,200
4.
1,800
What is the stitch range of the
31-15 machine?
1.
5-32 spi
2.
7-32 Spi
3.
3-15 spi
4.
4–22 spi
The 31–15 sewing machine can sew
canvas up to a maximum of how
many ounces?
1.
6
2 . 2
3.
8
4.
4
A sewing machine that is in
constant use should be oiled how
often?
1.
Once a day
2.
Twice a day
3.
Everytime the bobbin is
changed
4.
Every hour
What type oil is recommended for
oiling a sewing machine?
1.
10W mineral
2.
20W castor base
3.
3-in-1
4.
SAE 30
38
