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Chemical Engineering :: Chemical Engineering Basics

  1. Gross national product (GNP) means the total value of __________ in a country.

  2. A.
    goods produced
    B.
    gold reserve
    C.
    earning of the citizens
    D.
    taxes paid

  3. Energy to be supplied to the radioactive nucleus for the emission of a neutron is __________ MeV.

  4. A.
    0.8
    B.
    7.8
    C.
    200
    D.
    10000

  5. The co-ordination number in simple cubic structure is

  6. A.
    4
    B.
    6
    C.
    8
    D.
    12

  7. Out of the following surfaces, the emis-sivity will be minimum for

  8. A.
    aluminium foil
    B.
    concrete
    C.
    plaster
    D.
    smooth glass

  9. The property of material, by which a given amount of energy is absorbed by it without plastic deformation, is called the

  10. A.
    resilience
    B.
    toughness
    C.
    ductility
    D.
    impact strength

  11. The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void.

  12. A.
    equal to
    B.
    greater than
    C.
    less than
    D.
    either (a), (b) or (c); depends on the size of atom

  13. __________ the exhaust gas is an indication of the incomplete combustion of fuel.

  14. A.
    Low temperature of
    B.
    High temperature of
    C.
    High % of CO in
    D.
    High % of CO2 in

  15. Air/fuel ratio on molar (volume) basis for combustion of methane with theoretical quantity of air with be

  16. A.
    9.5:1
    B.
    12.5:1
    C.
    15.5 :1
    D.
    18.5 : 1

  17. Frost formation on the evaporator tubes in the domestic refrigerators

  18. A.
    can be prevented by proper design.
    B.
    decreased compressor power.
    C.
    causes heat loss due to poor heat transfer.
    D.
    is immaterial.

  19. Function of feed check valve in a boiler is to

  20. A.
    facilitate circulation of high pressure feed water.
    B.
    check the water level in the boiler drum.
    C.
    prevent the back flow of water.
    D.
    regulate the water flow to boiler.