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  • Question
  • The mass of excess air supplied is equal to


  • Options
  • A. The mass of excess air supplied is equal to x Mass of excess carbon x Mass of excess oxygen x Mass o x Mass of excess carbon
  • B. The mass of excess air supplied is equal to x Mass of excess carbon x Mass of excess oxygen x Mass o x Mass of excess oxygen
  • C. The mass of excess air supplied is equal to x Mass of excess carbon x Mass of excess oxygen x Mass o x Mass of excess carbon
  • D. The mass of excess air supplied is equal to x Mass of excess carbon x Mass of excess oxygen x Mass o x Mass of excess oxygen

  • Correct Answer
  • x Mass of excess oxygen 


  • Thermodynamics problems


    Search Results


    • 1. The mass of carbon per kg of flue gas is given by

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 2. If the carbon content in the bituminous coal is 78 to 81%, it is said to be coking bituminous coal.

    • Options
    • A. Agree
    • B. Disagree
    • Discuss
    • 3. It is __________ to make an engine working on a Carnot cycle.

    • Options
    • A. possible
    • B. impossible
    • Discuss
    • 4. When the gas is heated at constant pressure, the heat supplied

    • Options
    • A. increases the internal energy of the gas
    • B. increases the temperature of the gas
    • C. does some external work during expansion
    • D. Both (B) and (C)
    • Discuss
    • 5. The atomic mass of sulphur is

    • Options
    • A. 12
    • B. 14
    • C. 16
    • D. 32
    • Discuss
    • 6. A cycle consisting of two isothermal and two isentropic processes, is known as

    • Options
    • A. Carnot cycle
    • B. Stirling cycle
    • C. Ericsson cycle
    • D. Joule cycle
    • Discuss
    • 7. In an ideal gas turbine plant, it is assumed that the compression and expansion processes are

    • Options
    • A. isothermal
    • B. isentropic
    • C. polytropic
    • D. none of these
    • Discuss
    • 8. When wood is heated with a limited supply of air to a temperature not less than 280°C, the resulting fuel is

    • Options
    • A. coke
    • B. wood charcoal
    • C. bituminous coal
    • D. briquetted coal
    • Discuss
    • 9. The change of entropy, when heat is removed from the gas, is positive.

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 10. Steam coal is a

    • Options
    • A. pulverised coal
    • B. brown coal
    • C. coking bituminous coal
    • D. non-coking bituminous coal
    • Discuss


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