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  1. The magnitude of water hammer caused in pipe flow is independent of the

  2. A.
    pipe length.
    B.
    fluid flow stoppage rate.
    C.
    fluid temperature.
    D.
    time of valve closure.

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  3. A metalloid possesses the characteristics of both the metals and non-metals. Which of the following is not a metalloid ?

  4. A.
    Arsenic
    B.
    Antimony
    C.
    Lead
    D.
    none of these

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  5. No cutting fluid is normally used, while machining

  6. A.
    cast iron
    B.
    aluminium
    C.
    mild steel
    D.
    stainless steel

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  7. Two solutions A1 & A2 have pH value of 2 & 6 respectively. It implies that the solution

  8. A.
    A1 is more alkaline than solution A2.
    B.
    A1 is highly acidic.
    C.
    A2 is very slightly acidic.
    D.
    both(b) & (c).

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  9. Which of the following is a disaccharide?

  10. A.
    Lactose
    B.
    Starch
    C.
    Cellulose
    D.
    Fructose

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  11. Hardness & tensile strength of austenitic stainless steel can be increased by

  12. A.
    martempering
    B.
    cold working
    C.
    normalising
    D.
    hardening

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  13. Which of the following metals occurs in nature in their free metallic state ?

  14. A.
    Au & Ag
    B.
    Pb & Zn
    C.
    Cu & Ni
    D.
    none of these

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  15. The most suitable material for a sewer for carrying storm water is

  16. A.
    asbestos cement
    B.
    cast iron
    C.
    mild steel
    D.
    cement concrete

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  17. In a totally irreversible isothermal expansion process for an ideal gas, ΔE = 0, ΔH = 0. Then ΔQ and ΔS will be

  18. A.
    ΔQ = 0, ΔS=0
    B.
    ΔQ = 0 , ΔS = +ve
    C.
    ΔQ = 0, ΔS = -ve
    D.
    ΔQ = +ve , ΔS= +ve

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  19. Sulphur is melted in the sulphuric acid plant most commonly by employing

  20. A.
    electrical heater
    B.
    steam heater
    C.
    direct fuel oil fired heater
    D.
    gas fired furnace

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