Materials and Construction MCQs with answers Page - 2

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A

Admin • 802.91K Points
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Q. Approximate value of the modulus of elasticity for steel is about __________ × 106 kg/cm2.

  • (A) 0.2
  • (B) 2
  • (C) 40
  • (D) 75

A

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Q. Which of the following constituents of cast iron is mainly responsible for imparting it an anti-corrosive property?

  • (A) Silicon
  • (B) Phosphorus
  • (C) Sulphur
  • (D) None of these

A

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Q. An alloy used as thermocouple material comprises of 40% nickel and 60% copper. It is called

  • (A) German silver
  • (B) Chromel
  • (C) Kanthal
  • (D) Constantan

A

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Q. Brinell Hardness Number (BHN) for talc is approximately in the range of

  • (A) 1-5
  • (B) 20-30
  • (C) 100 -150
  • (D) 200 - 250

A

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Q. Rubber lined vessels are corroded by the action of

  • (A) Aqua regia
  • (B) Chloroform
  • (C) Sulphuric acid (95%)
  • (D) All of the above

A

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Q. The addition of antimony in tin-based alloys improves its

  • (A) Rupture strength and hot hardness
  • (B) Impact strength and bonding strength
  • (C) Deformation resistance
  • (D) Wear resistance

A

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Q. The heat treatment process applied to cold formed steel parts is

  • (A) Normalising
  • (B) Tempering
  • (C) Artificial ageing
  • (D) Solution annealing

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Q. __________ can replace tungsten in high speed steel,

  • (A) Chromium
  • (B) Vanadium
  • (C) Cobalt
  • (D) Molybdenum

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Q. Which of the following undergoes granular fracture?

  • (A) Wrought iron
  • (B) Steel
  • (C) Cast iron
  • (D) None of these

A

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Q. Pipes for bi-cycle frames are made of __________ steel.

  • (A) Hot rolled
  • (B) Chrome carbon
  • (C) Cold rolled
  • (D) Stainless

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