CDC 2A755 Vol 1; URE Questions &
Answers
When mixing sealant to bond radar-absorbing material (RAM), a hot mixture is indicated by
what color? (sec 4) Correct Ans-black
What is the result of a hot sealant mix? (sec 4) Correct Ans-premature bond failure
What type of materials is used to provide a smooth transition between two surfaces that have
mismatched height? (sec 4) Correct Ans-fairing
Which metal is ferrous? (sec 4) Correct Ans-cast iron
A metal that can be hammered, rolled, or pressed into various shapes without breaking has a high
degree of...? (sec 4) Correct Ans-mallleability
A metal that can withstand tearing or shearing, and that may be stretched of otherwise deformed
without breaking has a high degree of...? (sec 4) Correct Ans-toughness
What metal property is defined as the resistance of a metal to being pulled apart by a slowly
applied load?
(sec 4) Correct Ans-tensile strength
, Which stress is a combination stress in an aircraft? (sec 4) Correct Ans-bending
What stresses occur when you bend a piece of metal in a cornice brake? (sec 4) Correct Ans-
tension and compression
The most important reasons for using aluminum alloys in aircraft construction are because of
their high strength-to-wreight ratio and...? (sec 4) Correct Ans-ease of fabrication
If you had to select an aluminum alloy where extra high strength and hardness is required, which
alloy would you select? (sec 4) Correct Ans-7075
If you had to select an aluminum alloy that is high in strength without a substantial loss in
workability, which alloy would you select? (sec 4) Correct Ans-5052
Alpha-beta titanium alloys are used when...? (sec 4) Correct Ans-a compromise of
performance is acceptable
One way to identify titanium is to look for a dark line when a sample piece of titanium moistened
with water is used to draw on a piece of...? (sec 4) Correct Ans-glass
What is the worlds lightest strucural metal? (sec 4) Correct Ans-magnesium
Answers
When mixing sealant to bond radar-absorbing material (RAM), a hot mixture is indicated by
what color? (sec 4) Correct Ans-black
What is the result of a hot sealant mix? (sec 4) Correct Ans-premature bond failure
What type of materials is used to provide a smooth transition between two surfaces that have
mismatched height? (sec 4) Correct Ans-fairing
Which metal is ferrous? (sec 4) Correct Ans-cast iron
A metal that can be hammered, rolled, or pressed into various shapes without breaking has a high
degree of...? (sec 4) Correct Ans-mallleability
A metal that can withstand tearing or shearing, and that may be stretched of otherwise deformed
without breaking has a high degree of...? (sec 4) Correct Ans-toughness
What metal property is defined as the resistance of a metal to being pulled apart by a slowly
applied load?
(sec 4) Correct Ans-tensile strength
, Which stress is a combination stress in an aircraft? (sec 4) Correct Ans-bending
What stresses occur when you bend a piece of metal in a cornice brake? (sec 4) Correct Ans-
tension and compression
The most important reasons for using aluminum alloys in aircraft construction are because of
their high strength-to-wreight ratio and...? (sec 4) Correct Ans-ease of fabrication
If you had to select an aluminum alloy where extra high strength and hardness is required, which
alloy would you select? (sec 4) Correct Ans-7075
If you had to select an aluminum alloy that is high in strength without a substantial loss in
workability, which alloy would you select? (sec 4) Correct Ans-5052
Alpha-beta titanium alloys are used when...? (sec 4) Correct Ans-a compromise of
performance is acceptable
One way to identify titanium is to look for a dark line when a sample piece of titanium moistened
with water is used to draw on a piece of...? (sec 4) Correct Ans-glass
What is the worlds lightest strucural metal? (sec 4) Correct Ans-magnesium
