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Chemical Engineering :: Chemical Engineering Basics

  1. Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag.

  2. A.
    2
    B.
    3
    C.
    0.8
    D.
    6

  3. __________ is the hardest material out of the following.

  4. A.
    Boron carbide
    B.
    Tungsten carbide
    C.
    Hardened steel
    D.
    Silicon carbide

  5. The phenomenon of weld decay is found in case of

  6. A.
    gun metal
    B.
    brass
    C.
    stainless steel
    D.
    cast iron

  7. If a solid is compressed adiabatically in its elastic range, its __________ remains constat

  8. A.
    internal energy
    B.
    enthalpy
    C.
    entropy
    D.
    temperature

  9. 'GASOHOL' widely used in Brazil as a motor fuel is a mixture of alcohol and

  10. A.
    petrol.
    B.
    LPG.
    C.
    light hydrocarbon gases (e.g. butane or propane).
    D.
    none of these.

  11. On decreasing the grain size of a polycrys-talline material, the property most likely to deteriorate is

  12. A.
    creep
    B.
    toughness
    C.
    tensile strength
    D.
    fatigue

  13. It is possible to form martensite

  14. A.
    sometimes by cold working.
    B.
    sometimes without nucleation.
    C.
    sometimes by gas quenching.
    D.
    only in iron based alloys.

  15. Which of the following material handling equipments is not suitable for moving materials in varying paths ?

  16. A.
    Hand trolley
    B.
    Belt conveyor
    C.
    Crane
    D.
    Truck

  17. The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.

  18. A.
    wetness
    B.
    mass flow rate
    C.
    both 'a' & 'b'
    D.
    neither 'a' nor 'b'

  19. Thermal equivalent of electrical power in practical calculation is __________ kcal/kWh.

  20. A.
    746
    B.
    3000
    C.
    1000
    D.
    550