Q. In case of normalising heat treatment process hypereutectoid steels are heated above --------- temperature

  • (A) ac1
  • (B) ac3
  • (C) acm
  • (D) none of the above
πŸ’¬ Discuss
βœ… Correct Answer: (C) acm

Q. One of the following is a transformation product of austenite.

  • (A) austenite to ferrite
  • (B) austenite to ledeburite
  • (C) austenite to pearlite
  • (D) none of the above
πŸ’¬ Discuss
βœ… Correct Answer: (C) austenite to pearlite

Q. One of the following is a transformation product of austenite.

  • (A) austenite to ferrite
  • (B) austenite to ledeburite
  • (C) austenite to martensite
  • (D) none of the above
πŸ’¬ Discuss
βœ… Correct Answer: (C) austenite to martensite

Q. One of the following is a transformation product of austenite.

  • (A) austenite to ferrite
  • (B) austenite to ledeburite
  • (C) austenite to carbide
  • (D) none of the above
πŸ’¬ Discuss
βœ… Correct Answer: (C) austenite to carbide

Q. The Chemical formula for cementite is

  • (A) fe3c
  • (B) fec3
  • (C) fe2c3
  • (D) none of the above
πŸ’¬ Discuss
βœ… Correct Answer: (A) fe3c

Q. Following is one of the heat treatment process.

  • (A) melting
  • (B) solidification
  • (C) hardening
  • (D) none of the above
πŸ’¬ Discuss
βœ… Correct Answer: (C) hardening

Q. One of the following is a heat treatment process for metals

  • (A) annealing
  • (B) normalising
  • (C) hardening
  • (D) all of the above
πŸ’¬ Discuss
βœ… Correct Answer: (D) all of the above

Q. From the following process,one is not a heat treatment process

  • (A) annealing
  • (B) normalising
  • (C) hardening
  • (D) machining
πŸ’¬ Discuss
βœ… Correct Answer: (D) machining

Q. One of the following is a transformation product of austenite.

  • (A) austenite to pearlite
  • (B) austenite to bainite
  • (C) austenite to martensite
  • (D) all of the above
πŸ’¬ Discuss
βœ… Correct Answer: (D) all of the above

Q. Pearlite is madeup of alternate colonies or lamilies of ---------and -------

  • (A) ferrite and martensite
  • (B) ferrite and pearlite
  • (C) ferrite and cementite
  • (D) none of the above
πŸ’¬ Discuss
βœ… Correct Answer: (C) ferrite and cementite

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