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Chemical Engineering :: Chemical Engineering Basics

  1. Which of the following emissions in the exhaust gas of an I.C. engine causes the formation of photochemical smog?

  2. A.
    Nitrogen oxides
    B.
    Hydrocarbons
    C.
    both 'a' & 'b'
    D.
    Carbon monoxide

  3. If Reynolds number is greater than 1, then the

  4. A.
    viscous force is larger than the inertia force.
    B.
    inertia force is larger than the viscous force.
    C.
    inertia force is larger than the surface tension force.
    D.
    inertia force is larger than the gravitational force.

  5. The type of pump used for lifting large quantity of sewage is a __________ pump.

  6. A.
    gear
    B.
    centrifugal
    C.
    reciprocating
    D.
    plunger

  7. Which of the following metals is not subjected to electrolytic refinning/purification?

  8. A.
    Copper
    B.
    Zinc
    C.
    Tin
    D.
    Aluminium

  9. The most important function of a washer is to provide bearing area and washers are normally specified by their hole diameters. The diameter of washer as compared to the nut is

  10. A.
    more
    B.
    less
    C.
    same
    D.
    more but less than the diameter of bolt

  11. The underground well of a biogas plant is called the

  12. A.
    septic tank
    B.
    oxidation well
    C.
    digestor
    D.
    lagoon

  13. Use of water as a manometric liquid suffers from the disadvantage of its

  14. A.
    low vapour pressure.
    B.
    corrosive nature.
    C.
    high vapour pressure.
    D.
    high boiling point.

  15. The following thermocouple may be used for measuring temperature upto 1873°K.

  16. A.
    Chromel-alumel
    B.
    Copper-constantan
    C.
    Platinum-platinum rhodium
    D.
    Iron-constatan

  17. Thermodynamic cycle involved in the working of a thermal power plant is the __________ cycle.

  18. A.
    Joule
    B.
    Carnot
    C.
    Rankine
    D.
    Brayton

  19. Closeness of packing is maximum in case of __________ crystal lattice.

  20. A.
    face centred
    B.
    simple cubic
    C.
    body centred
    D.
    none of these