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
0 h : 0 m : 1 s