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AERM 1203 Shop Practices (Materials and process Test Review) Qs&As
Why are aircraft metals malleable? - ANSWER-Because it can be hammered, rolled, or pressed into
various shapes without cracking, breaking or leaving some other detrimental effect.
What does the first digit of 4130 indicate? - ANSWER-The basic alloying element.
What are firewalls made from? - ANSWER-Stainless steel and or titanium.
What two characteristics make aluminum skin easy to work with? - ANSWER-malleable and ductile
What type of aluminum is 1100? - ANSWER-99 % pure aluminum with one control over individual
impurities.
What does the first digit of 2026 aluminum indicate? - ANSWER-The major alloy type or element.
What do designations F and O mean? - ANSWER-F = as fabricated
O= annealed, recrystallized(wrought products only)
What are two test to identify titanium? - ANSWER-The spark test, and the moistened metal dragged
across glass making pencil like markings.
How do iron constantan thermocouples function? - ANSWER-Electrical conductivity of a metal as it
changes temperature.
What quenching treatment has the slowest cooling potential? - ANSWER-Oil
AERM 1203 Shop Practices Materials and process Test Review Qs&As
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