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Chemical Engineering Basics-2 - Section-1
  1. Galvanic corrosion can not be prevented by

    2. A.

     Cathodic protection
    B.

     Anodic protection
    C.

     Usage of largest possible anodic area
    D.

     Any one of these

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  2. Wrought iron is never shaped by

    3. A.

     Casting
    B.

     Cold working
    C.

     Forging
    D.

     Welding

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  3. The function of a nozzle provided in steam turbine is to

    4. A.

     Throttle down (i.e., reduce) the pressure of steam
    B.

     Convert internal energy into kinetic energy
    C.

     Increase the velocity of steam
    D.

     All of the above

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  4. Biological shield in a nuclear reactor is generally provided to protect against the

    5. A.

     α-rays
    B.

     β-rays
    C.

     Gamma rays & neutrons
    D.

     Electrons

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  5. Ingrannular corrosion occurs __________ stainless steel.

    6. A.

     In all types of steels except
    B.

     At the surface of
    C.

     Along grain boundaries of
    D.

     In the core of

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  6. The standard instrument used for calibrating the load applied by universal testing machine is called

    7. A.

     Extensometer
    B.

     Spring balace
    C.

     Dynamometer
    D.

     None of these

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  7. Resilience of a material is important, when it is subjected to

    8. A.

     Creep
    B.

     Fatigue
    C.

     Shock loading
    D.

     Galvanising

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  8. Dry saturated steam can be converted into superheated steam by

    9. A.

     Increasing its cross-sectional area of flow
    B.

     Passing it through a pressure reducing valve
    C.

     Forcing it downwards through a vertical tube
    D.

     None of these

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  9. L.D. converters are generally lined with

    10. A.

     Magnesite
    B.

     Fireclay
    C.

     Chrome magnesite
    D.

     Silica

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  10. The ability of a substance to assume two or more crystalline structure is called

    11. A.

     Isomorphism
    B.

     Polymorphism
    C.

     Amorphism
    D.

     Isomerism

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