
Surface Hardening Quiz
Quiz
•
Other
•
12th Grade
•
Practice Problem
•
Hard
Phil A
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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary aim of surface hardening, also known as case hardening?
To decrease the weight of metal components
To increase the electrical conductivity of metal components
To increase the hardness and wear resistance of the surface layer of a metal component
To enhance the magnetic properties of metal components
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is surface hardening particularly useful for components like gears, bearings, and shafts?
Because it enhances their optical properties
Because it increases their resistance to high temperatures
Because it increases their resistance to high wear and abrasion
Because it reduces their manufacturing costs
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of the nitriding process in metal treatment?
To decrease the metal's melting point
To increase surface hardness and wear resistance
To enhance the metal's electrical conductivity
To reduce the weight of the metal component
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During the nitriding process, what gas is used to treat the metal component?
Oxygen
Hydrogen
Nitrogen
Carbon dioxide
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What compounds are formed on the metal surface during the nitriding process?
Iron oxide and iron sulfide
Iron nitride (Fe3N) and iron carbonitride (Fe4N)
Iron phosphate and iron chloride
Iron carbide and iron silicide
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary method used in induction hardening to heat the metal component?
Convection heating
Electromagnetic induction
Direct flame application
Infrared radiation
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of quenching in the induction hardening process?
To heat the metal further
To clean the metal surface
To achieve rapid cooling
To paint the metal surface
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