Engineering Materials MCQs with answers Page - 9

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. The loss of strength in compression which occurs when there is a gain in strength in the tension due to overloading is

  • (A) Iso-strain
  • (B) Hysteresis
  • (C) Bounhinger effect
  • (D) Relaxation

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Q. Electronic structure of a material is generally studied by

  • (A) Mossbauer studies
  • (B) Microscope
  • (C) Naked eye
  • (D) Spectroscope techniques

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Q. Steel castings

  • (A) Cannot withstand impact
  • (B) Are not weldable
  • (C) Are weldable
  • (D) Have poor endurance properties

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Q. Cold shuts are

  • (A) Saturation of pores in bricks
  • (B) Saturation of pores in metals by subsituting materials different from parent materials
  • (C) Defects in castings due to two streams of metal which are too cold to fuse properly
  • (D) Forging defects due to improper heating of materials

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Q. The property of metal when the recovery after unloading is complete but not instantaneous is

  • (A) Plsticity
  • (B) Visco elasticity
  • (C) An elasticity
  • (D) Inelasticity

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Q. Cast irons are generally specified by

  • (A) Hardness
  • (B) Carbon percentage
  • (C) Tensile strength
  • (D) Iron percentage

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Q. Identify the incorrect statement

  • (A) Hot working performed on the metals is in a plastic state
  • (B) Much greater pressures are needed for ot working than for cold working
  • (C) When material is cold worked the resulting change in material shape brings about marked changes in the grain structure
  • (D) Structural changes in cold working are grain fragmentation and lattice distortion

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Q. Galvanizing is generally done on

  • (A) Low carbon steels
  • (B) Cast iron
  • (C) Non-ferrous metals
  • (D) Non-metallic substances

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Q. A Babitt is

  • (A) A cutectic of iron and iron phosphide
  • (B) A gadget for measuring volume
  • (C) A measure of magnetic induction produced in a material
  • (D) None of these

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Q. Which of the following colour of light has the least wavelength?

  • (A) Violet
  • (B) Green
  • (C) Blue
  • (D) Orange

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