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Chemical Engineering :: Fuels and Combustion

Fuels and Combustion - Section 1
Fuels and Combustion - Section 2
Fuels and Combustion - Section 3
Fuels and Combustion - Section 4
Fuels and Combustion - Section 5
Fuels and Combustion - Section 6
Fuels and Combustion - Section 7
Fuels and Combustion - Section 8
Fuels and Combustion - Section 9
Fuels and Combustion - Section 10

  1. Volatile matter content of metallurgical coke may be around __________ percent.

    2. A.
    1-2
    B.
    10-15
    C.
    22-26
    D.
    30-33

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  2. Calorific value of bituminous coal may be around __________ Kcal/kg.

    3. A.
    500
    B.
    1500
    C.
    6500
    D.
    20000

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  3. Gobar gas is produced by the __________ of cown dung.

    4. A.
    fermentation
    B.
    oxidation
    C.
    hydrogenation
    D.
    none of these

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  4. In Orsat's apparatus, ammoniacal cuprous chloride is used for selectivity absorbing

    5. A.
    CO
    B.
    CO2
    C.
    O2
    D.
    H2O

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  5. Which of the following is not a manufactured fuel ?

    6. A.
    Coke breeze
    B.
    Soft coke
    C.
    Colloidal fuels
    D.
    Charcoal

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  6. Which of the following coke has the least percentage of ash ?

    7. A.
    Petroleum coke
    B.
    Beehive coke
    C.
    Foundary coke
    D.
    Metallurgical coke

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  7. Soft coke is not

    8. A.
    produced by low temperature carbonisation of coal.
    B.
    a domestic fuel.
    C.
    used in blast furnaces.
    D.
    none of these.

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  8. Mineral matter, 'M' and ash percentage 'A' in coal are roughly related as

    9. A.
    M = 1.8 A
    B.
    M = 0.5 A
    C.
    M = 1.1 A
    D.
    M = A

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  9. Blast furnace gas constitutes mainly of

    10. A.
    N2 & CH4
    B.
    N2 & H2
    C.
    N2 & CO
    D.
    CH4 & CO2

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  10. A good coking coal should have high __________ content.

    11. A.
    ash
    B.
    sulphur & phosphorus
    C.
    moisture
    D.
    none of these

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