Materials and Construction MCQs with answers Page - 20

Here, you will find a collection of MCQ questions on Materials and Construction. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. Nitriding of steel is a process for

  • (A) Annealing
  • (B) Spheroidising
  • (C) Normalising
  • (D) Case hardening

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Q. Duralumin is an alloy of

  • (A) Aluminium, copper and manganese
  • (B) Aluminium, nickel and silicon
  • (C) Aluminium and nickel
  • (D) None of these

A

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Q. Duriron is

  • (A) Acid resistant, brittle and very hard
  • (B) High silicon iron
  • (C) Prone to breakage due to thermal expansion because of its very high co-efficient of thermal expansion
  • (D) All of the above

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Q. The temperature at which new grains are formed in the metal is called the __________ temperature.

  • (A) Eutectic
  • (B) Recrystallisation
  • (C) Upper critical
  • (D) Lower critical

A

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Q. A material capable of undergoing large permanent deformation, when subjected to compression is termed as

  • (A) Ductile
  • (B) Brittle
  • (C) Malleable
  • (D) None of these

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Q. Plasticisers are added to polymers to improve their

  • (A) Tensile strength
  • (B) Softness & flexibility
  • (C) Acid resistance
  • (D) Alkali resistance

A

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Q. DDT is shipped in

  • (A) Stainless steel containers
  • (B) Paper bags
  • (C) Fibre drums
  • (D) Either B or C

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Q. The ability of a material to offer resistance to scratching or indentation is a measure of its

  • (A) Brittleness
  • (B) Toughness
  • (C) Hardness
  • (D) Resilience

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Q. Cast iron has

  • (A) High ductility
  • (B) High malleability
  • (C) Very high tensile strength
  • (D) Its elastic limit very close to ultimate breaking strength

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Q. Hardest materials so far found is

  • (A) Diamond
  • (B) Graphite
  • (C) Carborundum
  • (D) Pumice stone

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