Home / Chemical Engineering / Chemical Engineering Basics :: Section 14

Chemical Engineering :: Chemical Engineering Basics

  1. Unit molar solution of __________ is the best conductor of electricity.

  2. A.
    sodium chloride
    B.
    acetic acid
    C.
    sulphuric acid
    D.
    sucrose

    View Answer

    Workspace

    Discuss Discuss in Forum


  3. A coal with high __________ content will ignite most easily.

  4. A.
    hydrogen
    B.
    oxygen
    C.
    volatile matter
    D.
    fixed carbon

    View Answer

    Workspace

    Discuss Discuss in Forum


  5. The weight of a body at the centre of the earth is

  6. A.
    infinite.
    B.
    zero.
    C.
    same as on the surface of the earth.
    D.
    none of these.

    View Answer

    Workspace

    Discuss Discuss in Forum


  7. For the same heat input & compression ratio, efficiency of Otto cycle is higher than that of diesel cycle, because in Otto cycle.

  8. A.
    heat rejection is lower.
    B.
    expansion & compression are isentropic.
    C.
    maximum temperature is higher.
    D.
    combustion is at constant volume.

    View Answer

    Workspace

    Discuss Discuss in Forum


  9. The single most imortant requirement for a turbine blade material is

  10. A.
    damping
    B.
    resilience
    C.
    creep resistaned
    D.
    DBTT

    View Answer

    Workspace

    Discuss Discuss in Forum


  11. In cold working of metal as compared to its hot working

  12. A.
    cracks and blow holes are eliminated.
    B.
    ductility and impact strength improves.
    C.
    appreciable strain hardening is produced.
    D.
    yield stress, hardness and fatigue strength is not at all affected.

    View Answer

    Workspace

    Discuss Discuss in Forum


  13. __________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength.

  14. A.
    Lancing
    B.
    Shot peening
    C.
    Slugging
    D.
    Spinning

    View Answer

    Workspace

    Discuss Discuss in Forum


  15. Mho's scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.

  16. A.
    scratch
    B.
    indentation
    C.
    dynamic
    D.
    rebound

    View Answer

    Workspace

    Discuss Discuss in Forum


  17. Which of the following is a weak acid ?

  18. A.
    HF
    B.
    HCl
    C.
    HI
    D.
    HBr

    View Answer

    Workspace

    Discuss Discuss in Forum


  19. Pig iron is a product of

  20. A.
    electric arc furnace
    B.
    cupola
    C.
    blast furnace
    D.
    open hearth furnace

    View Answer

    Workspace

    Discuss Discuss in Forum