Home / Chemical Engineering / Chemical Engineering Basics :: Section 27

Chemical Engineering :: Chemical Engineering Basics

  1. Recrystallisation temperature of steel is __________ °C.

  2. A.
    50
    B.
    300
    C.
    500
    D.
    800

    View Answer

    Workspace

    Discuss Discuss in Forum


  3. Pressure required to increase the density of water by about 1% is __________ atmosphere.

  4. A.
    10
    B.
    50
    C.
    200
    D.
    1000

    View Answer

    Workspace

    Discuss Discuss in Forum


  5. Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded portion.

  6. A.
    annealing
    B.
    toughening
    C.
    work hardening
    D.
    tempering

    View Answer

    Workspace

    Discuss Discuss in Forum


  7. The maximum stress below which a material can withstand an infinite number of cycle of stress, is termed as the

  8. A.
    fatigue strength
    B.
    creep strength
    C.
    resilience
    D.
    endurance limit

    View Answer

    Workspace

    Discuss Discuss in Forum


  9. The best guide to judge the general quality of water is the measurement of its

  10. A.
    pH value.
    B.
    electrical conductivity.
    C.
    turbidity.
    D.
    dissolved oxygen content.

    View Answer

    Workspace

    Discuss Discuss in Forum


  11. Wrought iron is not

  12. A.
    ductile & resistant to corrosion/rusting.
    B.
    weldable easily.
    C.
    having uniform strength in all directions.
    D.
    having maximum tensile strength along the lines of slag distribution.

    View Answer

    Workspace

    Discuss Discuss in Forum


  13. Which of the following is the largest quantum of pressure?

  14. A.
    1 kg/cm2
    B.
    1 bar
    C.
    1 atmosphere
    D.
    1 kilo Pascal

    View Answer

    Workspace

    Discuss Discuss in Forum


  15. Which of the following is not a charge material for cupola ?

  16. A.
    Limestone
    B.
    Iron scrap
    C.
    Iron ore
    D.
    Pig iron

    View Answer

    Workspace

    Discuss Discuss in Forum


  17. Which of the following is an undesirable property of slag produced during the pyrometallurgical method of metal extraction from its ore ?

  18. A.
    High fusibility & fluidity.
    B.
    High thermal conductivity.
    C.
    Low density.
    D.
    High chemical activity.

    View Answer

    Workspace

    Discuss Discuss in Forum


  19. In __________ process, ions of salts react with water to produce acidity or alkalinity.

  20. A.
    hydration
    B.
    hydrolysis
    C.
    electrolysis
    D.
    dialysis

    View Answer

    Workspace

    Discuss Discuss in Forum