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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

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  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

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  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

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  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

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  9. Knocking tendency in a petrol engine decreases with increasing

  10. A.

     Supercharging

    B.

     Compression ratio

    C.

     Wall temperature

    D.

     Engine speed

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  11. Glass reacts with

  12. A.

     H₂SO₃

    B.

     HF

    C.

     HNO₃

    D.

     K₂Cr₂O₇

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  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

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  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

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  17. Photographic plates are coated with

  18. A.

     Silver nitrate

    B.

     Silver halide

    C.

     Calcium silicate

    D.

     Metallic silver

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  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

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