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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. Which of the following fuels is the best for burning on chain grate stoker ?

    2. A.
    Non-caking coal
    B.
    Caking coal
    C.
    Coking coal
    D.
    Pulverised coal.

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  2. The cuprous chloride used in orsat apparatus can absorb

    3. A.
    only CO
    B.
    both CO and CO2
    C.
    both CO and O2
    D.
    all CO, CO2, and O2.

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  3. Coal tar fuels (CTF) as compared to petroleum based fuel oils have higher

    4. A.
    calorific value
    B.
    higher C/H ratio
    C.
    sulphur content
    D.
    difference in gross & net calorific value

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  4. Mott and Wheeler test is conducted on coke to find its

    5. A.
    reactivity with O2.
    B.
    abradability.
    C.
    phosphorus content.
    D.
    volatile matter content.

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  5. The pyragallol solution used in orsat apparatus can absorb

    6. A.
    only O2
    B.
    both O2 and CO2
    C.
    both O2 and CO
    D.
    all CO, CO2, and O2

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  6. Gray-King Assay and Roga Index of coal is a measure of its

    7. A.
    abradability.
    B.
    grindability.
    C.
    weathering properties.
    D.
    caking and swelling properties.

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  7. While the first commercial low temperature coal carbonisation plant is located at Neyveli (in Chennai), the second such plant has been built at

    8. A.
    Dankuni (West Bengal)
    B.
    Dhanbad
    C.
    Singreni (AP.)
    D.
    Raniganj

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  8. Low temperature oxidation of coal resulting from bad storage conditions does not decrease its

    9. A.
    caking power
    B.
    calorific value
    C.
    hydrogen content
    D.
    oxygen content

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  9. Main use of soft coke is as __________ fuel.

    10. A.
    domestic
    B.
    blastfurnace
    C.
    foundary
    D.
    none of these

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  10. Desirable "Micum Index" values of metal-lurical coke are

    11. A.
    M40 > 78% and M10 < 10%.
    B.
    M40 > 4% and M10 < 80%.
    C.
    M40 > 10% and M10 < 78%.
    D.
    M40 > 98% and M10 < 2%.

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