7-28.
7-29.
7-30.
7-31.
7-32.
7-33.
Tube assemblies must be cleaned
after fabrication.
What is the
preferred cleaning material for
hydraulic lines?
1.
Isopropyl alcohol
2.
P-D-680, Type II
3.
MIL-T-81533
4.
MIL-C-81302
Special precautions required for
testing and cleaning oxygen tube
assemblies can be found in
MIL-STD-1359.
The interior tube assemblies of an
aircraft require what type of
protective finish?
1.
One coat of epoxy polyamide
primer
2.
Two coats of zinc chromate
primer
3.
One coat of aliphatic
polyurethane paint
4.
Two coats of nitrocellulose
acrylic lacquer paint
With some exceptions,
identification tapes are NOT
applied to lines less than what
maximum diameter?
1.
1 in.
2.
2 in.
3.
3 in.
4.
4 in.
The function of a line is
identified by a l-inch-wide tape
that contains words, colors, and
symbols.
When color codes are used
to identify the line function, at
what location are they found on the
tape?
1.
One-half the total width on the
left side of the tape
2.
One-half the total width on the
right side of the tape
3.
Three-fourths the total width
on the left side of the tape
4.
Three-fourths the total width
on the right side of the tape
What total number of general
classes of hazards are found in
connection fluid lines?
1. Seven
2.
Six
3.
Five
4.
Four
IN ANSWERING QUESTION 7-34, REFER TO TABLE
6-9 IN THE TEXTBOOK.
7-34.
7-35.
7-36.
7-37.
7-38.
7-39.
Which of the following hazards is
associated with the use of oils and
greases?
What type of lines alternately
carry pressure and return fluid
from an actuating unit?
1. Return lines
2.
Supply lines
3.
Pressure lines
4.
Operating lines
At the organizational level, you
are NOT allowed to perform which of
the following maintenance actions
on tube assemblies?
1.
Repair
2.
Inspection
3.
Fabrication
4.
Replacement
A tube assembly has a dent with a
depth of less than 20 percent of
the tubing diameter.
The dent is
unacceptable if it is in which of
the following locations?
A straight section of tubing
The heel of a short bend radius
A section of tubing with a
diameter of less than one-half
inch
A section of aluminum tubing
carrying pressures greater than
500 psi
An aluminum alloy tube assembly
that carries a pressure of 1,500
psi has a scratch greater than 15
percent of the wall thickness.
Which of the following maintenance
actions should you take?
1.
Replace the tube assembly
2.
Replace the scratch by welding
3.
Rework the scratch by machine-
burring
4.
Rework the scratch by
burnishing with hand tools
When installing a tube assembly,
you should cover disconnected
nonsealed joints with what type of
sealing material?
1. MIL-S-8802
2.
MIL-S-83430
3.
MIL-s-81733
4.
MIL-S-38249
35
