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Chemical Engineering :: Chemical Engineering Basics-2

  1. Minimum safe distance between two liquid fuel storage tanks is equal to (where, H = height of the tank)

  2. A.

     H

    B.

     H/2

    C.

     H/4

    D.

     H/6

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  3. Expansion device used in a window air-conditioner is a/an

  4. A.

     Automatic expansion valve

    B.

     Thermostatic expansion valve

    C.

     Float valve

    D.

     Capillary tube

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  5. With increase in annealing temperature, the following defect density decreases.

  6. A.

     Vacancy

    B.

     Dislocation

    C.

     Grain boundary

    D.

     All of the above

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  7. Which of the following has the least oili-ness ?

  8. A.

     Mineral oils

    B.

     Vegetable oils

    C.

     Greases

    D.

     Animal oils

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  9. Which of the following is a permanent fastening?

  10. A.

     Rivets

    B.

     Bolts

    C.

     Screws

    D.

     Keys

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  11. Which of the following is a synthetic abrasive ?

  12. A.

     Corundum

    B.

     Emery

    C.

     Pumice

    D.

     Silicon carbide

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  13. Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles (i.e., froth), which will hold the ore particles, but it does not affect the floatability of minerals. Which of the following is not used as a frother?

  14. A.

     Cresylic acid

    B.

     Xanthaies

    C.

     Pine oil

    D.

     All of the above

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  15. In __________ process, there is an increase in entropy with no degradation of energy.

  16. A.

     Isothermal expansion

    B.

     Isochoric heat addition

    C.

     Polytropic expansion

    D.

     Isobaric heat addition

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  17. Wrought iron does not have

  18. A.

     Uniform strength in all directions

    B.

     Ability to hold protective coating

    C.

     High ductility & corrosion resistance

    D.

     Easily weldable characteristics

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  19. Wrought iron does not have the

  20. A.

     Uniform strength in all directions

    B.

     Ability to hold protective coating

    C.

     High ductility & corrosion resistance

    D.

     Easily weldable characteristics

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