Menu
Home / Chemical Engineering / Fuels and Combustion :: Section 6

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 has the highest flame velocity ?

    2. A.
    H2
    B.
    CO
    C.
    CH4
    D.
    C2H6

    View Answer

    Workspace

    Discuss Discuss in Forum

  2. Which of the following constituents of a fuel does not contribute to its calorific value on combustion ?

    3. A.
    Hydrogen
    B.
    Sulphur
    C.
    Carbon
    D.
    None of these

    View Answer

    Workspace

    Discuss Discuss in Forum

  3. Lurgi gasifier (high pressure gasifier) as compared to Kopper Totzek gasifier (atmospheric pressure gasifier) produces

    4. A.
    higher amount of methane.
    B.
    lower amount of hydrogen.
    C.
    both (a) and (b).
    D.
    higher amount of both methane and hydrogen.

    View Answer

    Workspace

    Discuss Discuss in Forum

  4. For long flame and easy ignition, the coal used should have

    5. A.
    high volatile matter
    B.
    low ash
    C.
    high calorific value
    D.
    high ash

    View Answer

    Workspace

    Discuss Discuss in Forum

  5. Which of the following has the highest calorific value (kcal/Nm3) ?

    6. A.
    Carburetted water gas
    B.
    Gobar gas
    C.
    Natural gas
    D.
    LPG

    View Answer

    Workspace

    Discuss Discuss in Forum

  6. In flue gas analysis by Orsat's apparatus, oxygen is absorbed by

    7. A.
    potassium hydroxide.
    B.
    cuprous chloride.
    C.
    alkaline pyragllol solution.
    D.
    none of these.

    View Answer

    Workspace

    Discuss Discuss in Forum

  7. Natural draft created by the chimney depends upon

    8. A.
    temperature of the flue gas.
    B.
    its height.
    C.
    both (a) & (b).
    D.
    neither (a) nor (b).

    View Answer

    Workspace

    Discuss Discuss in Forum

  8. Coke oven gas after passing through return electrostatic tar precipitator (RETP) is used for the

    9. A.
    hot scarfing of steel slabs.
    B.
    mixing with blast furnace gas.
    C.
    coke oven battery heating.
    D.
    steel ladle drying.

    View Answer

    Workspace

    Discuss Discuss in Forum

  9. Calorific value of a typical dry anthracite coal may be around __________ Kcal/kg.

    10. A.
    1000
    B.
    4000
    C.
    8000
    D.
    15000

    View Answer

    Workspace

    Discuss Discuss in Forum

  10. The most matured coal out of the following is

    11. A.
    lignite
    B.
    semi-anthracite
    C.
    sub-bituminous
    D.
    bituminous

    View Answer

    Workspace

    Discuss Discuss in Forum

Java Programming Questions and Answers Interview Questions and Answers