Discussion
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- Question
The property of a material essential for spring materials is
Options- A. stiffness
- B. ductility
- C. resilience
- D. plasticity
- Correct Answer
- resilience
- 1. The type of space lattice found in alpha-iron is
Options- A. face centred cubic space lattice
- B. body centred cubic space lattice
- C. close packed hexagonal space lattice
- D. none of these Discuss
- 2. 18-4-1 high speed steel contains
Options- A. vanadium 4%, chromium 18% and tungsten 1%
- B. vanadium 1%, chromium 4% and tungsten 18%
- C. vanadium 18%, chromium 1% and tungsten 4%
- D. none of the above Discuss
- 3. Hindalium is an alloy of aluminium and magnesium with a small quantity of chromium.
Options- A. Agree
- B. Disagree Discuss
- 4. A steel with carbon above 0.8% is known as hyper-eutectoid steel.
Options- A. Agree
- B. Disagree Discuss
- 5. The toughness of a material __________ when it is heated.
Options- A. remains same
- B. decreases
- C. increases Discuss
- 6. Combined carbon in iron makes the metal
Options- A. soft and gives coarse grained crystalline structure
- B. soft and gives a fine grained crystalline structure
- C. hard and gives a coarse grained crystalline structure
- D. hard and gives a fine grained crystalline structure Discuss
- 7. The machinability of steel is improved by adding
Options- A. nickel
- B. chromium
- C. nickel and chromium
- D. sulphur, lead and phosphorus Discuss
- 8. The aluminium alloy, mainly used, for anodized utensil manufacture, is
Options- A. duralumin
- B. Y-alloy
- C. magnalium
- D. hindalium Discuss
- 9. The blade of a power saw is made of
Options- A. boron steel
- B. high speed steel
- C. stainless steel
- D. malleable cast iron Discuss
- 10. The alloying element which can replace tungsten in high speed steels is
Options- A. nickel
- B. vanadium
- C. cobalt
- D. molybdenum Discuss
Engineering Materials problems
Search Results
Correct Answer: body centred cubic space lattice
Correct Answer: vanadium 1%, chromium 4% and tungsten 18%
Correct Answer: Agree
Correct Answer: Agree
Correct Answer: decreases
Correct Answer: hard and gives a fine grained crystalline structure
Correct Answer: sulphur, lead and phosphorus
Correct Answer: hindalium
Correct Answer: high speed steel
Correct Answer: molybdenum
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