3-25.
Hi-torque bolts are installed with
what tool?
1.
An Allen wrench
2.
A socket wrench
3.
A special driver adapter
4.
A Reed-and-Prince screwdriver
IN ANSWERING QUESTIONS 3-26 THROUGH 3-28,
SELECT FROM COLUMN B THE STATEMENTS THAT
EXPLAIN THE LETTERS OR NUMBERS OF THE BOLT
DESIGNATION AN4CH-20 LISTED IN COLUMN A.
NOT ALL ITEMS IN COLUMN B WILL BE USED.
A.
LETTERS/
B.
STATEMENTS
NUMBERS
3-26.
4
1.
The bolt is
2 1/32 in.
3-27. C
long
3-28. H
2.
The bolt
diameter is
1/4 inch
3.
The bolt
head is
drilled for
safetying
4.
The bolt is
made of
corrosion-
resistant
steel
3-29.
Aircraft nuts are divided into what
two general groups?
1.
Self-1ocking and nonself-
locking
2.
Metal insert and fiber insert
3.
High temperature and common
4.
Ferrous and nonferrous
3-30.
Which of the following is an
example of an all-metal self-
locking nut?
1.
A wing nut
2.
A flexloc nut
3.
An elastic stop nut
4.
An internal-wrenching nut
3-31.
Which of the following types of
nuts are designed to be used with
cotter pins or safety wire?
1.
Check nuts
2.
Plate nuts
3.
Castle nuts
4.
Barrel nuts
3-32.
3-33.
3-34.
3-35.
3-36.
3-37.
3-38.
When an assembly is frequently
removed, which of the following
types of nuts should be used?
1.
Wing nuts
2.
Shear nuts
3.
Klincher locknuts
4.
Sheet spring nuts
Which of the following types of
nuts are used to ensure a permanent
and vibrationproof connection?
1.
Wing nuts
2.
Shear nuts
3.
Klincher locknuts
4.
Sheet spring nuts
What three types of screws are most
commonly used in aircraft
construction?
1.
Machine, structural, and self-
tapping screws
2.
Brazier-head, round-head, and
common screws
3.
Self-tapping, Phillips, and
common screws
4.
Structural, machine, and pan-
head screws
Which of the following types of
screws are as strong as bolts of
the
1.
2.
3.
4.
same size?
Setscrews
Machine screws
Structural screws
Self-tapping screws
Flush-head machine screws are
available in what degree(s) of head
angle?
1.
82° only
2.
82° and 100° only
3. 82°, 100°, and 125° only
4. 82°, 100°, 125°, and 145°
When replacing an original screw in
a structure, you should NOT use
which of the following screws?
1.
A setscrew
2.
A machine screw
3.
A structural screw
4.
A self-tapping screw
You should use ball socket and seat
washers in which of the following
situations?
1.
With studs
2.
Under taper pin nuts
3.
With sheet spring nuts
4.
When bolts are installed at an
angle to the surface
13
