4-59.
Dissimilar metals in contact in a corrosive
medium, such as salt water.
1. B
2.
D
3.
E
4.
H
4-60.
Lifting up of the metal surface caused by
the force of expanding corrosion products
occurring at the grain boundaries just below
the metal surface.
1. E
2.
F
3.
G
4.
H
4-61.
To identify all the corrosion-prone areas of
your squadron’s aircraft, you should refer to
which of the following publications?
1.
Applicable NATOPS manual
2.
Applicable periodic maintenance
information cards (PMICS)
3.
Aircraft Cleaning and Corrosion
Control Manual
4.
Maintenance requirements cards
(MRCs)
4-62.
When avionic and structural corrosion is
compared, which of the following effects is
the main difference between avionic and
structural corrosion?
1.
Avionics systems do not have as many
areas in which moisture can be trapped
2.
Corrosion is not as difficult to detect in
avionic systems
3.
Small amounts of corrosion can make
avionic systems inoperable
4.
Avionic components are more
corrosion resistant
4-63.
Before performing any maintenance on
avionic or electrical systems, you should
make sure that you have completed which
of the following actions?
1.
Ground the aircraft
2.
Check and tie down the aircraft
3.
Secure all external electrical power
4.
Install all covers and shrouds
4-64.
What type of corrosion is usually found
around electrical bonding and grounding
straps?
1. Filiform
2. Galvanic
3. Microbiological
4. Stress
4-65.
You are inspecting an aircraft ejection seat.
It is very important that even the slightest
indication of corrosion be found for which
of the following reasons?
1.
Corrosion can weaken the structural
soundness of the seat
2.
Slight amounts of corrosion may
indicate other problems that are not
visible
3.
Slight amounts of corrosion may cause
the seat to be inoperable
4.
Each of the above
4-66.
When inspecting engine frontal areas and
cooling air vents, what type of
discrepancy(ies) are you likely to find?
1.
Galvanic corrosion
2.
Stress corrosion cracking
3.
Dirt, dust, gravel, and rain erosion
4.
Intergranular, filiform, and fatigue
corrosion
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