1020.
At a swaged connection, what is
the maximum amount of broken wires
allowed before the swaged fitting
should be replaced?
1.
One
2.
Two
3.
Three
4.
Four
10-21.
When a hook has been bent by
overloading, the hook should
be straightened by heating the
hook with a torch.
1.
True
2.
False
10-22.
When an original shackle pin is
lost or does not fit properly,
the shackle should NOT be used.
1.
True
2.
False
Learning Objective:
Recognize
the principles and components
of fiber line and chains.
1023.
Which of the following types of
fiber line comes from the leaf
stems of the stalk of the abaca
plant?
1.
Sisal
2.
Manila
3.
Cotton
4.
Hemp
10-24.
Which of the following types of
fiber line is principally used
in fittings, such as ratline,
marline, and spun yarn?
1.
Sisal
2.
Manila
3.
Cotton
4.
Hemp
1025.
The snapback of a nylon rope can
be as deadly as a bullet.
10-26.
What percentage of extension in
length is the critical point of
loading for a nylon rope?
1.
10%
2.
20%
3.
30%
4.
40%
10-27.
What type of fiber line has
characteristics similar to that of
nylon line, but does not snapback
when it parts?
1.
Sisal
2.
Hemp
3.
Kevlar
4.
Manila
10-28.
For some jobs, which of the
following properties make chain
more suited for use than wire
rope?
1.
Resistant to abrasion
2.
Resistant to corrosion
3.
Resistant to heat
4.
All of the above
10-29.
Which of the following conditions
affects the strength of a chain?
1.
Knotting the chain
2.
Overloading the chain
3.
Heating the chain to
temperatures above 500°F
4.
All of the above
10-30.
Chains should be removed from
service when any link shows wear
that exceeds what percentage of
the thickness of the metal?
1.
10%
2.
15%
3.
20%
4.
25%
1.
True
2.
False
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