Engineering Materials MCQs with answers Page - 2

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

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Q. Addition of silicon to aluminium results in

  • (A) improvement of casting characteristics
  • (B) improvement of corrosion resistance
  • (C) one of the best known age and precipitation-hardening systems
  • (D) improving machinability

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Q. Admiralty brass used for steam condenser tubes contains copper and zinc in the following ratio

  • (A) 50:50:00
  • (B) 30 : 70
  • (C) 70:30:00
  • (D) 40 : 60

A

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Q. Admiralty gun metal contains

  • (A) 63 to 67% nickel and 30% copper
  • (B) 88% copper, 10% tin and rest zinc
  • (C) alloy of tin, lead and cadmium
  • (D) iron scrap and zinc

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Q. Age-hardening is related with

  • (A) stainless steel
  • (B) gun metal
  • (C) german silver
  • (D) duralumin

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Q. Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio

  • (A) 50 : 20 : 20 : 10
  • (B) 40 : 30 : 20 : 10
  • (C) 50 : 20 : 10 : 20
  • (D) 50 : 10 : 20 : 20.

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Q. Aluminium bronze contains

  • (A) 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe
  • (B) 92.5% aluminium, 4% copper, 2% nickel, and 1.5% Mg
  • (C) 10% aluminium and 90% copper
  • (D) 90% magnesium and 9% aluminium with some copper

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Q. Aluminium bronze contains aluminium and copper in the ratio of

  • (A) 50:50:00
  • (B) 40 : 60
  • (C) 60:40:00
  • (D) 10 : 90

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Q. Amorphous material is one

  • (A) in which atoms align themselves in a geometric pattern upon solidification
  • (B) in which there is no definite atomic structure and atoms exist in a random pattern just as in a liquid
  • (C) which is not attacked by phosphorous
  • (D) which emits fumes on melting

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Q. An engineer’s hammer is made of

  • (A) cast iron
  • (B) forged steel
  • (C) mild steel
  • (D) high carbon steel

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