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MCQs

Total Questions : 96 | Page 2 of 10 pages
Question 11. Which type of Monel alloy is a hard-casting grade?
  1.    K Monel
  2.    R Monel
  3.    H Monel
  4.    S Monel
 Discuss Question
Answer: Option C. -> H Monel
Answer: (c).H Monel
Question 12. What is the melting point of Tin?
  1.    2270°C
  2.    1453°C
  3.    327°C
  4.    232°C
 Discuss Question
Answer: Option D. -> 232°C
Answer: (d).232°C
Question 13. How does a Monel perform compared to mild steel?
  1.    Brighter appearance
  2.    Stronger and tougher
  3.    Poor toughness
  4.    Poor strength
 Discuss Question
Answer: Option B. -> Stronger and tougher
Answer: (b).Stronger and tougher
Question 14. Which of the following is an application of Inconel?
  1.    Furnace chamber
  2.    Chemical storage tank
  3.    Pumps
  4.    Spray nozzles
 Discuss Question
Answer: Option A. -> Furnace chamber
Answer: (a).Furnace chamber
Question 15. Which nickel alloy is used as a substitute in tableware and jewelry?
  1.    Nickel-iron
  2.    Nickel-copper
  3.    Nickel-chromium
  4.    Nickel-silver
 Discuss Question
Answer: Option D. -> Nickel-silver
Answer: (d).Nickel-silver
Question 16. How are malleable cast irons designated for different grades?
  1.    By tensile strength
  2.    By six or seven-digit numbers
  3.    By five-digit numbers
  4.    By alphabets
 Discuss Question
Answer: Option C. -> By five-digit numbers
Answer: (c).By five-digit numbers
Question 17. What is the tensile strength of aluminum?
  1.    122.5 GPa
  2.    220 MPa
  3.    70.5 GPa
  4.    45 MPa
 Discuss Question
Answer: Option D. -> 45 MPa
Answer: (d).45 MPa
Question 18. What is the melting point of pure aluminum?
  1.    520-600°C
  2.    600°C
  3.    800°C
  4.    950°C
 Discuss Question
Answer: Option B. -> 600°C
Answer: (b).600°C
Question 19. What is the defining property of Wrought Irons?
  1.    High carbon
  2.    Low carbon
  3.    No carbon
  4.    Completely carbon-filled
 Discuss Question
Answer: Option B. -> Low carbon
Answer: (b).Low carbon
Question 20. What is the effect of Nickel on cast irons?
  1.    Stabilizes carbides
  2.    Increases hardness
  3.    Refines grain structure
  4.    Improves corrosion resistance
 Discuss Question
Answer: Option C. -> Refines grain structure
Answer: (c).Refines grain structure

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