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Chemical Engineering Basics-2 - Section-1
  1. Steel produced from phosphatic iron is __________ in nature.

    2. A.

     Malleable
    B.

     Ductile
    C.

     Brittle
    D.

     Tough

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  2. Swaging is a/an __________ operation.

    3. A.

     Piercing
    B.

     Forging
    C.

     Extrusion
    D.

     Drawing

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  3. Thermal efficiency of an internal combustion engine is around __________ percent.

    4. A.

     8
    B.

     35
    C.

     65
    D.

     80

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  4. Pick out the wrong statement

    5. A.

     Processing of themosetting plastics is ideally done by injection moulding
    B.

     Processing of thermoplastics is ideally done by compression moulding
    C.

     Mass production of seamless pipes are done by electrical resistance welding (ERW)
    D.

     Stretch forming is a process of cold drawing

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  5. Transformation range for ferrous material is the temperature interval during which __________ is formed during its heating.

    6. A.

     Cementite
    B.

     Austenite
    C.

     Martensite
    D.

     Pearlite

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  6. The phenomenon of strain-ageing is generally experienced with

    7. A.

     Cast iron
    B.

     Low carbon steel
    C.

     High manganese steel
    D.

     High carbon steel

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  7. A highly elastic material is deformed least on loading and retains its original form on removal of the load. Which of the following is the most elastic material?

    8. A.

     Steel
    B.

     Glass
    C.

     Rubber
    D.

     Brass

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  8. Which of the following phenomenon/ phenomena is/are diffusion controlled ?

    9. A.

     Dislocation climb
    B.

     Cross-slip
    C.

     Twinning
    D.

     Recrystallisation

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  9. On increasing the yield strength of a steel from 450 to 650 MPa, its __________ will increase.

    10. A.

     Ultimate tensile strength (UTS)
    B.

     Modulus of toughness
    C.

     Percent elongation
    D.

     Modulus of resilience

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  10. With increase in steam pressure, its specific volume decreases

    11. A.

     Rapidly first and then slowly
    B.

     Linearly
    C.

     Slowly first and then rapidly
    D.

     Exponentially

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