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Chemical Engineering Basics - Section 1
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Chemical Engineering Basics - Section 5
Chemical Engineering Basics - Section 6
Chemical Engineering Basics - Section 7
Chemical Engineering Basics - Section 8
Chemical Engineering Basics - Section 9
Chemical Engineering Basics - Section 10
Chemical Engineering Basics - Section 11
Chemical Engineering Basics - Section 12
Chemical Engineering Basics - Section 13
Chemical Engineering Basics - Section 14
Chemical Engineering Basics - Section 15
Chemical Engineering Basics - Section 16
Chemical Engineering Basics - Section 17
Chemical Engineering Basics - Section 18
Chemical Engineering Basics - Section 19
Chemical Engineering Basics - Section 20
Chemical Engineering Basics - Section 21
Chemical Engineering Basics - Section 22
Chemical Engineering Basics - Section 23
Chemical Engineering Basics - Section 24
Chemical Engineering Basics - Section 25
Chemical Engineering Basics - Section 26
Chemical Engineering Basics - Section 27
Chemical Engineering Basics - Section 28

  1. The noble metals

    2. A.
    are exemplified by Na, K and Li.
    B.
    do not resist corrosion very strongly.
    C.
    are the lowermost in the electro-chemical series of metals.
    D.
    none of these.

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  2. Which of the following is an example of cathodic protection of metals against corrosion ?

    3. A.
    Painted steel
    B.
    Galvanised iron
    C.
    Case hardened steel
    D.
    Lead lined reactor

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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 correct combination about the role of various additives used in polymers.

    5. A.
    Plasticiser : increases the polymer strength.
    B.
    Heat stabiliser : increases the maximum service temperature.
    C.
    Fillers: Does not affect the property of polymer but increases its weight.
    D.
    Lubricants: increases the flexibility of polymers.

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  5. The lightest non-inflammable gas is

    6. A.
    H2
    B.
    He
    C.
    Ar
    D.
    O2

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  6. Silicon crystal can be converted to p-type semi-conductor by doping with

    7. A.
    phosphorous
    B.
    nitrogen
    C.
    carbon
    D.
    boron

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  7. Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint.

    8. A.
    flanged iron
    B.
    collar
    C.
    flexible
    D.
    expansion

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  8. Increase in the entropy of a system represents the

    9. A.
    degradation of energy.
    B.
    decrease in system pressure.
    C.
    increase in the availability of energy.
    D.
    increase in the temperature.

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  9. Property responsible for the talcum powder to cling to the skin is the

    10. A.
    capillary action
    B.
    adhesion
    C.
    cohesion
    D.
    surface tension

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  10. __________ has a negative co-efficient of linear expansion.

    11. A.
    Iron
    B.
    Copper
    C.
    Rubber
    D.
    Nickel

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