
QUIZ ACTIVITY - MODULE 4 & 5 _ IME_BESCK204D_B SECTION
Authored by Praveen Mech.
Engineering
Professional Development
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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Aerospace engineers need to design a lightweight aircraft wing that retains high strength and fatigue resistance. Which material would be most suitable and why?
Steel-reinforced polymer
Carbon fiber reinforced polymer (CFRP)
Aluminum alloy
Glass fiber reinforced epoxy
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Shape memory alloys (SMAs) are preferred for medical stents primarily because:
They are magnetic and easily detectable
They resist corrosion better than all other materials
They can expand and return to shape at body temperature
They are cheaper than stainless steel
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
You are asked to identify a ferrous material with 0.4% carbon content. What classification does it fall under?
Cast iron
Low carbon steel
Medium carbon steel
High carbon steel
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
An automotive company wants to reduce vehicle weight without compromising structural strength. Which composite would you recommend to replace steel in the chassis?
Wood-fiber composite
Carbon fiber reinforced plastic
Epoxy resin
Stainless steel composite
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
To join copper pipes for plumbing with minimal heat distortion and good mechanical strength, which method is best?
Electric arc welding
Soldering with tin-lead alloy
Brazing using brass (spelter)
Gas metal arc welding (GMAW)
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
In assembling electronic circuits, why is soldering more preferred over brazing?
It requires higher temperature
It offers stronger joints
It is suitable for delicate components
It avoids use of flux
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A welder is tasked with joining a metal that is highly sensitive to oxidation, such as aluminum. Which type of gas flame should be used during welding, and what is the reasoning behind its selection?
Neutral flame – to maintain balance between oxygen and acetylene
Oxidizing flame – to provide extra heat for faster welding
Reducing (Carburizing) flame – to prevent oxidation of the metal
Blue flame – to reduce thermal expansion
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