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    Chemical Engineering Basics MCQ Practice Test - Set 01

    Practice Test: Question Set - 01


    1. Metal cutting by oxy-acetylene flame is accomplished by the __________ of the metal.
      (A) Burning
      (B) Intensive oxidation
      (C) Evaporation
      (D) None of these

    2. The only suitable method for hardening the low carbon steel is case hardening. Which of the following is a case hardening process?
      (A) Cyaniding
      (B) Sherardizing
      (C) Spheroidising
      (D) None of these

    3. Filler material used in welding should have __________ as compared to the parent metal to be welded.
      (A) Lower melting temperature
      (B) Same melting temperature
      (C) Same composition
      (D) Both 'b' & 'c'

    4. The temperature at which the magnetic property of iron disappears (i.e., it becomes non-magnetic) and its electrical conductivity & specific heat also changes, is called the 'Curie point', which is __________ °C.
      (A) 768
      (B) 908
      (C) 1400
      (D) 1539

    5. About __________ ton of coke is required in a cupola to produce one ton of casting.
      (A) 0.03
      (B) 0.3
      (C) 0.8
      (D) 1.5

    6. Referring to the periodic table of elements, it is found that with increasing atomic number. The atomic size in the same
      (A) Period increases
      (B) Period decreases
      (C) Group increases
      (D) Both 'b' & 'c'

    7. Satellites burn off during re-entry to earth's atmosphere, because of the
      (A) Combustion with air
      (B) Gravitational pull by earth
      (C) Friction with earth's atmosphere
      (D) Loss in weight of the satellite

    8. Joining of thin foils is preferred to be done by
      (A) Gamma rays
      (B) X-rays
      (C) Microwaves
      (D) Gas welding

    9. Which of the following is the correct nature of shear stress distribution along the cross section in a horizontal circular pipe under steady state fluid flow condition?
    Set 01 - Question No. 09



    10. With increase in temperature, the electrical conductivity of semiconductors
      (A) Increases
      (B) Decreases
      (C) Remain constant
      (D) Either (a) or (b), depends on the type of semi-conductor

    11. Laser welding is widely employed in the __________ industries.
      (A) Electronic
      (B) Structural
      (C) Process
      (D) Heavy

    12. Which of the following approaches the ideal gas behavior most closely?
      (A) Wet steam
      (B) Saturated steam
      (C) Superheated steam
      (D) Saturated water

    13. Lap joints are preferred over butt joints in soldering/brazing, because these joints are
      (A) Weaker in tension but stronger in shear
      (B) Weaker in shear but stronger in tension
      (C) Stronger in both shear and tension
      (D) The lap joints are easily made

    14. Normalising does not __________ of a metal.
      (A) Improve machinability & tensile strength
      (B) Remove internal stresses
      (C) Refine the structure
      (D) Remove strains caused by cold working

    15. Which of the following hardness tests does not measure the indentation hardness of metals and alloys?
      (A) Vickers hardness test
      (B) Shore scleroscope test
      (C) Brinell hardness test
      (D) Rockwell hardness test

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    Item Reviewed: Chemical Engineering Basics MCQ Practice Test - Set 01 Rating: 5 Reviewed By: Pranab Debnath
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