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Chemical Engineering :: Chemical Engineering Basics

  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.

  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

  5. No cutting fluid is normally used, while machining

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

  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).

  9. Which of the following is a disaccharide?

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

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

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

  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

  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

  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

  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