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Chemical Engineering Basics-2 - Section-1
  1. The ultimate strength in tension for steel is __________ times the ultimate strength in shear.

    2. A.

     0.5
    B.

     0.9
    C.

     1.5
    D.

     2.5

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  2. Tesla metre per ampere (T. m/A) is the unit for the measurement of

    3. A.

     Magnetic succeptibility
    B.

     Magnetic moment
    C.

     Permeability of free space
    D.

     Flux density

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  3. Sheardising process is used for

    4. A.

     Surface coating
    B.

     Heat treatment of high speed steel
    C.

     Cold working on metals
    D.

     None of these

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  4. Malleabilisation heat treatment is performed on

    5. A.

     Cast steel
    B.

     Grey cast iron
    C.

     White cast iron
    D.

     Spheroidal graphite cast iron

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  5. Tin based white metals are used, where bearings are subjected to

    6. A.

     High pressure & load
    B.

     Low pressure & load
    C.

     High temperature
    D.

     Large surface wear

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  6. Which of the following materials does not form adherent oxide film on surface?

    7. A.

     Copper
    B.

     Nickel
    C.

     Aluminium
    D.

     Gold & silver

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  7. Broaching tools are usually made of

    8. A.

     Cermets
    B.

     High speed steel
    C.

     Tungsten carbide
    D.

     Stellite

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  8. Hooke's law

    9. A.

     Applies to elastic deformation
    B.

     Applies beyond limit of proportionality in stress-strain curve
    C.

     States that stress is inversely proportional to strain upto elastic limit
    D.

     Noneofthese

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  9. __________ is a special constituent of chlorophyll without which photosynthesis is not possible.

    10. A.

     Calcium
    B.

     Nitrogen
    C.

     Phosphorous
    D.

     Hydrogen

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  10. Air intake for an air compressor should be preferably taken from

    11. A.

     A site, where cooling towers are located nearby
    B.

     A site, where open coal yard in located nearby
    C.

     An air conditioned room maintained at a temperature of 18°C
    D.

     An outside atmosphere at 10°C

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