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Chemical Engineering :: Chemical Engineering Basics

  1. The routing function in a production system design is concerned with the

  2. A.
    material flow optimisation through the plant.
    B.
    machine utilisation.
    C.
    quality control of the product.
    D.
    manpower utilisation.

  3. Filler material used in welding having the lowest melting point out of the following is

  4. A.
    aluminium
    B.
    soft solder
    C.
    silver solder
    D.
    brazing spelter

  5. Which of the following has the highest density and the lowest melting point ?

  6. A.
    Stainless steel
    B.
    Titanium
    C.
    Lead
    D.
    Aluminium

  7. Electrolytes conduct electric current by

  8. A.
    the movement of ions.
    B.
    the movement of molecules.
    C.
    allowing electrons to flow through them from cathode to anode.
    D.
    movement of electric charge through them.

  9. To improve the machinability of steel by its softening, it is subjected to

  10. A.
    cold working
    B.
    annealing
    C.
    shot blasting
    D.
    heating

  11. Heat transfer by radiation from a hot body will be most rapid, if its surface is __________ because of its higher emissivity.

  12. A.
    white & rough
    B.
    black & rough
    C.
    white & polished
    D.
    black & polished

  13. Reduction reaction involves the

  14. A.
    loss of electrons.
    B.
    increase in oxidation number.
    C.
    gain of electrons.
    D.
    addition of oxygen.

  15. Specific heat of an ideal gas depends upon its

  16. A.
    molecular weight
    B.
    pressure
    C.
    temperature
    D.
    volume

  17. In case of compression of one kg of air, the work done will be the least, when the value of polytropic index 'n' is

  18. A.
    1
    B.
    1.4
    C.
    1.5
    D.
    Y = Cp/Cv

  19. A __________ type pressure sensing element is commonly used in aneroid barometer.

  20. A.
    capsule
    B.
    bellow
    C.
    spiral tube
    D.
    flat diaphragm