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Chemical Engineering :: Chemical Engineering Basics-2

  1. Heat release during phase change is observed in case of a/an

  2. A.

     Boiler

    B.

     Condenser

    C.

     Evaporator

    D.

     All of the above


  3. For dynamic strain measurement, the wheatstone bridge used is of __________ type.

  4. A.

     Voltage sensitive null

    B.

     Voltage sensitive deflected

    C.

     Current sensitive deflected

    D.

     None of these


  5. Catalyst used in the 'catalytic converter' employed in automobile exhaust line for complete combustion/oxidation of carbon monoxide, nitrogen oxides and hydrocarbons is

  6. A.

     Alumina

    B.

     Platinum

    C.

     Vanadium pentoxide

    D.

     Iron oxide


  7. Ammonia leakage in the refrigeration system is detected by

  8. A.

     Sulphur stick, which on detection gives white smoke

    B.

     Using chemical reagents

    C.

     Its smell

    D.

     Soap solution


  9. Knocking tendency in a petrol engine decreases with increasing

  10. A.

     Supercharging

    B.

     Compression ratio

    C.

     Wall temperature

    D.

     Engine speed


  11. Glass reacts with

  12. A.

     H₂SO₃

    B.

     HF

    C.

     HNO₃

    D.

     K₂Cr₂O₇


  13. The conventional mechnical transducer, which converts pressure signal to displacement signal is

  14. A.

     Spring

    B.

     Manometer

    C.

     Strain gauge

    D.

     None of these


  15. A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is

  16. A.

     -0.8

    B.

     0.8

    C.

     +0.08

    D.

     -0.24


  17. Photographic plates are coated with

  18. A.

     Silver nitrate

    B.

     Silver halide

    C.

     Calcium silicate

    D.

     Metallic silver


  19. A fine grained grinding wheel should not be used for grinding __________ materials.

  20. A.

     Hard

    B.

     Brittle

    C.

     Soft & ductile

    D.

     None of these