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- Question
Silicon when added to copper improves
Options- A. machinability
- B. hardness
- C. hardness and strength
- D. strength and ductility
- Correct Answer
- hardness and strength
- 1. Nodular cast iron is produced by adding __________ to the molten cast iron.
Options- A. nickel
- B. chromium
- C. copper
- D. magnesium Discuss
- 2. The steel produced by bessemer or open hearth process is __________ to that produced by L-D process.
Options- A. superior
- B. inferior Discuss
- 3. The charge is fed into the blast furnace through the
Options- A. stack
- B. throat
- C. bosh
- D. tuyers Discuss
- 4. Which of the following process of steel making is in operation at Tata Iron and Steel Works, Jamshedpur?
Options- A. Bessemer process
- B. Open hearth process
- C. Duplex process
- D. Electric process Discuss
- 5. The hardness is the property of a material due to which it
Options- A. can be drawn into wires
- B. breaks with little permanent distortion
- C. can cut another metal
- D. can be rolled or hammered into thin sheets Discuss
- 6. The hardness of steel increases if it contains
Options- A. pearlite
- B. ferrite
- C. cementite
- D. martensite Discuss
- 7. Brass is an alloy of
Options- A. copper and zinc
- B. copper and tin
- C. copper, tin and zinc
- D. none of these Discuss
- 8. The cupola is used to manufacture
Options- A. pig iron
- B. cast iron
- C. wrought iron
- D. steel Discuss
- 9. Cast iron is manufactured in
Options- A. blast furnace
- B. cupola
- C. open hearth furnace
- D. bessemer converter Discuss
- 10. An alloy steel which is work hardenable and which is used to make the blades of bulldozers, bucket wheel excavators and other earth moving equipment contain iron, carbon and
Options- A. chromium
- B. silicon
- C. manganese
- D. magnesium Discuss
Engineering Materials problems
Search Results
Correct Answer: magnesium
Correct Answer: inferior
Correct Answer: throat
Correct Answer: Duplex process
Correct Answer: can cut another metal
Correct Answer: cementite
Correct Answer: copper and zinc
Correct Answer: cast iron
Correct Answer: cupola
Correct Answer: manganese
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