Materials and Construction MCQs with answers Page - 3

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Q. Nickel and copper are the basic constituents of

  • (A) Hastelloy
  • (B) Monel metal
  • (C) German silver
  • (D) Inconel

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Q. Nickel and molybdenum are the basic constituents of

  • (A) Hastealloy
  • (B) German silver
  • (C) Inconel
  • (D) Solder

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Q. Nickel as a material of construction

  • (A) Is used as an alloying element for both ferrous & non-ferrous alloys
  • (B) Is paramagnetic below 415°C (its Curie temperature)
  • (C) Dimagnetic
  • (D) Has a body centred cubic (bcc) crystal lattice structure

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Q. The increase in hardness of metal due to its cold working is termed as the __________ hardening.

  • (A) Flame
  • (B) Induction
  • (C) Age
  • (D) Work

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Q. Lead alone is not used in storing equipment, because it

  • (A) Is very costly
  • (B) Corrodes easily
  • (C) Is having low creep strength
  • (D) None of these

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Q. Tubes of multiple effect evaporator used for concentration of sugar cane juice are made of

  • (A) Copper
  • (B) Nickel
  • (C) Brass
  • (D) Stainless steel

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Q. High speed steel tools retain their hardness upto a temperature of __________ °C.

  • (A) 500
  • (B) 750
  • (C) 900
  • (D) 1100

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Q. The material of construction of pressure mills used for squeezing out the juice from sugar cane is

  • (A) Stainless steel
  • (B) Cast iron
  • (C) Mild steel
  • (D) Monel

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Q. Which of the following has the least carbon percentage?

  • (A) Low carbon steel
  • (B) Mild steel
  • (C) Wrought iron
  • (D) White cast iron

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Q. Balls in a ball mill are usually made of

  • (A) Steel
  • (B) Cast iron
  • (C) Stainless steel
  • (D) Bronze

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