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  1. Boiling point of water gets lowered at high altitudes (e.g., hills), because

  2. A.
    temperature is low.
    B.
    atmospheric pressure is low.
    C.
    atmospheric pressure is high.
    D.
    none of these.

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  3. With increase in temperature, the electrical conductivity of semiconductors

  4. A.
    increases.
    B.
    decreases.
    C.
    remain constant.
    D.
    either (a) or (b), depends on the type of semi-conductor.

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  5. Which of the, following is not associated with the functioning of a petrol engine ?

  6. A.
    Compression ignition system
    B.
    Spark plug
    C.
    Carburettor
    D.
    Otto cycle

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  7. Minimum number of members required to form a Public Limited Joint Stock Com-pany is

  8. A.
    7
    B.
    10
    C.
    12
    D.
    17

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  9. In an eutectic system, two elements are completely

  10. A.
    soluble in solid state.
    B.
    insoluble in liquid state.
    C.
    insoluble in both solid & liquid state.
    D.
    soluble in liquid state.

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  11. 'Cryogenics' is concerned with the generation & use of low temperature in the range of

  12. A.
    0°K to 123°K
    B.
    0°C to - 123°C
    C.
    0°C to - 273°C
    D.
    0°K to 273°K

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  13. The capacity of a spring to store energy is called the spring form co-efficient. Stiffness of a spring is measured by the

  14. A.
    ability to absorb shock.
    B.
    capacity to store energy.
    C.
    ratio of the wire & coil diameters.
    D.
    load to produce unit deflection.

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  15. Which of the following materials has the maximum shrinkage allowance ?

  16. A.
    Brass
    B.
    Cast iron
    C.
    Lead
    D.
    Aluminium alloy

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  17. Vibration upto 100 kilo hertz can be most accurately measured by a __________ type accelerometer.

  18. A.
    preloaded spring
    B.
    piezoelectric
    C.
    bonded strain gauge
    D.
    none of these

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  19. Normalising does not __________ of a metal.

  20. A.
    improve machinability & tensile strength
    B.
    remove internal stresses
    C.
    refine the structure
    D.
    remove strains caused by cold working

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