Discussion
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- Question
In the austempering process of heat treatment, austenite changes into
Options- A. martensite
- B. troostite
- C. sorbite
- D. bainite
- Correct Answer
- bainite
- 1. The high speed steel has __________ percentage of tungsten.
Options- A. maximum
- B. minimum Discuss
- 2. The percentage of phosphorus is phosphor bronze is
Options- A. 0.1
- B. 1
- C. 11.1
- D. 98 Discuss
- 3. In a unit cell of a body centred cubic space lattice, there are __________ atoms.
Options- A. six
- B. nine
- C. fourteen
- D. seventeen Discuss
- 4. A fine grained steel
Options- A. is less tough and has a greater tendency to distort during heat treatment
- B. is more ductile and has a less tendency to distort during heat treatment
- C. is less tough and has a less tendency to distort during heat treatment
- D. is more ductile and has a greater tendency to distort during heat treatment Discuss
- 5. Which of the following is a case hardening process?
Options- A. Carburising
- B. Cyaniding
- C. Nitriding
- D. all of these Discuss
- 6. Nichrome contains more iron than Inconel.
Options- A. Agree
- B. Disagree Discuss
- 7. The red flame during the operation of a bessemer converter indicates that the
Options- A. air is burning out silicon and manganese
- B. silicon and manganese has burned out and carbon has started oxidising
- C. converter must be tilted to remove the contents of the converter
- D. red flame does not occur during the operation of a bessemer converter Discuss
- 8. The cutting tools are made from
Options- A. nickel steel
- B. chrome steel
- C. nickel-chrome steel
- D. high speed steel Discuss
- 9. A steel alloy containing 36% nickel is called
Options- A. stainless steel
- B. high speed steel
- C. invar
- D. heat resisting steel Discuss
- 10. The machine tool guide ways are usually hardened by
Options- A. vacuum hardening
- B. martempering
- C. induction hardening
- D. flame hardening Discuss
Engineering Materials problems
Search Results
Correct Answer: maximum
Correct Answer: 0.1
Correct Answer: nine
Correct Answer: is more ductile and has a less tendency to distort during heat treatment
Correct Answer: all of these
Correct Answer: Agree
Correct Answer: red flame does not occur during the operation of a bessemer converter
Correct Answer: high speed steel
Correct Answer: invar
Correct Answer: flame hardening
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