6.
What type of material is used in high pressure oxygen systems?
A.
Aluminum tubing.
B.
Copper tubing.
C.
Stainless steel tubing.
D.
High-pressure teflon hose.
7.
When installing a tube assembly on an aircraft,
you
should
tighten the fitting nut when the system is at--
A.
0 psi.
B.
500 psi.
C.
750 psi.
D.
1,000 psi
8.
How many
types
of
seals
or
packing
are
used
in
hydraulic
systems?
A.
Two.
B.
Three.
C.
Four.
D.
Seven
9.
When can
seals
be
reused
after
they
have
been
removed
from
service?
A.
After inspection when no defects are found.
B.
When you are told to by higher authority.
C.
In emergencies.
D.
Never.
10.
When cutting gaskets from bulk material, how much leeway are you
allowed to use between the thickness of the bulk material and
the original gasket?
A.
None.
B.
2 percent.
C.
3 percent.
D.
5 percent.
70
AL0907
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