Engineering Materials problems
- 1. Which of the following is an amorphous material?
Options- A. Mica
- B. Silver
- C. Lead
- D. Glass Discuss
Correct Answer: Glass
- 2. Which of the following when used in ordinary low carbon steels, makes the metal ductile and of good bending qualities?
Options- A. Sulphur
- B. Phosphorus
- C. Manganese
- D. Silicon Discuss
Correct Answer: Manganese
- 3. Incoloy, Hastelloy and Vitallium are __________ temperature alloys.
Options- A. high
- B. low Discuss
Correct Answer: high
- 4. The coordination number of a face centred cubic space lattice is
Options- A. six
- B. twelve
- C. eighteen
- D. twenty Discuss
Correct Answer: twelve
- 5. The material widely used for making pendulums of clocks is
Options- A. stainless steel
- B. high speed steel
- C. heat resisting steel
- D. nickel steel Discuss
Correct Answer: nickel steel
- 6. The stiffness is the ability of a material to resist
Options- A. deformation under stress
- B. fracture due to high impact loads
- C. externally applied forces with breakdown or yielding
- D. none of the above Discuss
Correct Answer: deformation under stress
- 7. The steel widely used for motor car crankshafts is
Options- A. nickel steel
- B. chrome steel
- C. nickel-chrome steel
- D. silicon steel Discuss
Correct Answer: chrome steel
- 8. Grey cast iron has
Options- A. carbon in the form of free graphite
- B. high tensile strength
- C. low compressive strength
- D. all of these Discuss
Correct Answer: carbon in the form of free graphite
- 9. Spheroidal grey cast iron has graphite flakes.
Options- A. True
- B. False Discuss
Correct Answer: True
- 10. Which of the following steel making process is being adopted at Rourkela Steel Plant?
Options- A. Bessemer process
- B. Open-hearth process
- C. Electric process
- D. L-D process Discuss
Correct Answer: L-D process
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