Home / Chemical Engineering / Chemical Engineering Basics-2 :: Section-1

Chemical Engineering :: Chemical Engineering Basics-2

  1. Machinability of hard alloys & tool steels is improved by

  2. A.

     Spherodising

    B.

     Annealing

    C.

     Tempering

    D.

     Normalising


  3. The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel.

  4. A.

     60 - 100

    B.

     400 - 700

    C.

     1200 -1500

    D.

     2000 - 2300


  5. Gas turbine normally employs a constant __________ cycle.

  6. A.

     Pressure

    B.

     Temperature

    C.

     Volume

    D.

     None of these


  7. The substance used as a smoke screen in warfare is

  8. A.

     C₂H₂

    B.

     SiCl₄

    C.

     P₂O₅

    D.

     PCl5


  9. Old cycle handles are coated with nickel using

  10. A.

     Cementation

    B.

     Spray coating

    C.

     Galvanising process

    D.

     Tinning process


  11. The activity of pure hydrogen gas at 1000°C and 5 atm pressure

  12. A.

     Is always less than 1

    B.

     Is always greater than 1

    C.

     Can be 5

    D.

     Depends on the choice of the standard state


  13. If a nuclear reactor produces more fissile nuclear fuel than it consumes, then it is called a __________ reactor.

  14. A.

     Critical

    B.

     Breeder

    C.

     Fertile

    D.

     Heterogenous


  15. Grey cast iron (used for making underground water pipes and manhole covers) as compared to steel has higher

  16. A.

     Ductility

    B.

     Impact strength

    C.

     Machinability

    D.

     Melting point


  17. A common disinfectant used in village wells for disinfection of water is

  18. A.

     Free chlorine

    B.

     Bromine

    C.

     Iodine

    D.

     Potassium permanganate


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

  20. A.

     Low vapour pressure

    B.

     Corrosive nature

    C.

     High vapour pressure

    D.

     High boiling point