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Quiz 1
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Q.1
Continuous cooling transformation diagrams are mainly drawn for _________
a) Iron
b) Manganese
c) Any alloy
d) steel
Q.2
In continuous cooling transformation diagrams, which of the following is true?
a) The material is cooled rapidly
b) The material is first heated and then cooled rapidly
c) The material is cooled at a certain rate
d) The material is kept at a constant temperature
Q.3
How many types of CCT diagram are there?
a) 1
b) 2
c) 3
d) 4
Q.4
Which physical property is normally measured to determine a CCT diagram?
a) Hardness
b) Magnetic permeability
c) Pressure
d) Ductility
Q.5
Slope change in a CCT diagram signify _________
a) Change in temperature
b) Change in pressure
c) Change in phase
d) Change in state
Q.6
Jominy end quench test is used for type 2 CCT diagram.
a) True
b) False
Q.7
Which of the following scientist gave a method to calculate the transformation temperature during continuous cooling?
a) Scheil’s
b) Newton
c) Jominy
d) Einstein
Q.8
Critical cooling rate required is less in CCT than in TTT diagrams.
a) True
b) False
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