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Chemical Engineering :: Materials and Construction

Materials and Construction - Section 1
Materials and Construction - Section 2
Materials and Construction - Section 3
Materials and Construction - Section 4
Materials and Construction - Section 5
Materials and Construction - Section 6
Materials and Construction - Section 7
Materials and Construction - Section 8
Materials and Construction - Section 9
Materials and Construction - Section 10
Materials and Construction - Section 11

  1. Karbate is

    2. A.
    a mixture of iron dust and saw dust.
    B.
    carbon impregnated with resin (usually bakelite).
    C.
    an acid resistant material.
    D.
    both (b) and (c).

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  2. To improve the machinability of steel by its softening, it is subjected to

    3. A.
    cold working
    B.
    annealing
    C.
    shot blasting
    D.
    heating

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  3. Which one has the maximum tensile strength out of the following ?

    4. A.
    Nodular cast iron
    B.
    pig iron
    C.
    white cast iron
    D.
    grey cast iron

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  4. Material of construction of pipe generally used for conveying water in India is

    5. A.
    stainless steel
    B.
    cast iron
    C.
    wrought iron
    D.
    lead lined steel

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  5. Which of the following is the softest material ?

    6. A.
    Quartz
    B.
    Calcite
    C.
    Corrundum
    D.
    Flourite

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  6. Thermosetting polymers are

    7. A.
    injection moulded
    B.
    cast molded
    C.
    extruded
    D.
    none of these

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  7. Maximum consumption of lead is in the manufacture of

    8. A.
    storage batteries.
    B.
    solder alloys.
    C.
    electric cable sheathing.
    D.
    lead lined vessels.

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  8. Clock pendulums are usually made of __________ steel.

    9. A.
    high speed
    B.
    stainless
    C.
    heat resisting
    D.
    none of these

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  9. Which of the following is produced by addition polymerisation ?

    10. A.
    Polybutadiene
    B.
    Phenol formaldehyde
    C.
    Urea-formaldehyde
    D.
    Dacron

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  10. With increase in the carbon percentage in the steel, its

    11. A.
    hardness increases.
    B.
    ductility reduces.
    C.
    tensile strength increases.
    D.
    all (a), (b) and (c).

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