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- Question
Manganese bronze has
Options- A. good wearing qualities and high elasticity
- B. high yield point, high fatigue limit and excellent cold and hot corrosion resistance
- C. high resistance to corrosion
- D. valuable cold working property
- Correct Answer
- high resistance to corrosion
- 1. Muntz metal (Yellow brass) contains
Options- A. 70% copper and 30% zinc
- B. 60% copper and 40% zinc
- C. 59% copper, 40% zinc and 1% tin
- D. 60.45% copper, 35.2% zinc and 5.35% nickel Discuss
- 2. 18/8 stainless steel consists of
Options- A. 18% nickel and 8% chromium
- B. 18% chromium and 8% nickel
- C. 18% nickel and 18% chromium
- D. 8% nickel and 8% chromium Discuss
- 3. A steel is heated at about 875° C where the structure consists of entirely austenite. It is then cooled suddenly at a temperature of about 250° C to 525° C. This process of heat treatment is known as
Options- A. normalising
- B. annealing
- C. austempering
- D. martempering Discuss
- 4. Duplex process of steel making is a combination of
Options- A. basic bessemer and acid open hearth processes
- B. acid bessemer and basic open hearth processes
- C. acid bessemer and acid open hearth processes
- D. basic bessemer and basic open hearth processes Discuss
- 5. Which of the following gives the correct order of increasing hot hardness of cutting tool materials?
Options- A. Diamond, Carbide, High speed steel
- B. Carbide, Diamond, High speed steel
- C. High speed steel, Carbide, Diamond
- D. High speed steel, Diamond, Carbide Discuss
- 6. Aluminium bronze has high resistance to corrosion.
Options- A. True
- B. False Discuss
- 7. The property of a material necessary for forgings, in stamping images on coins and in ornamental work, is
Options- A. elasticity
- B. plasticity
- C. ductility
- D. malleability Discuss
- 8. The fuel used in a blast furnace is
Options- A. coal
- B. coke
- C. wood
- D. producer gas Discuss
- 9. During the operation of a bessemer converter, the white flame indicates that the silicon and managenese had burnt and carbon has started oxidising.
Options- A. Agree
- B. Disagree Discuss
- 10. The heat treatment process used for castings is
Options- A. carburising
- B. normalising
- C. annealing
- D. tempering Discuss
Engineering Materials problems
Search Results
Correct Answer: 60% copper and 40% zinc
Correct Answer: 18% chromium and 8% nickel
Correct Answer: austempering
Correct Answer: acid bessemer and basic open hearth processes
Correct Answer: High speed steel, Carbide, Diamond
Correct Answer: False
Correct Answer: plasticity
Correct Answer: coke
Correct Answer: Agree
Correct Answer: normalising
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