logo

CuriousTab

CuriousTab

Discussion

Home ‣ Mechanical Engineering ‣ Thermodynamics Comments
  • Question

  • The calorific value of gaseous fuel is expressed in


  • Options
  • A. kJ
  • B. kJ/kg
  • C. kJ/m2
  • D. kJ/m3

  • Correct Answer
  • kJ/m3 

    • Thermodynamics problems

    Search Results

    • 1. The throttling process is an irreversible steady flow expansion process.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss
    • 2. The process is adiabatic, if the value of n in the equation pvn = C, is

    • Options
    • A. 0
    • B. 1
    • C. ?
    • D. ?
      • Discuss
    • 3. Coal gas consists mainly of hydrogen, carbon monoxide and various hydrocarbons.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 4. All perfect gases change in volume by 1 / 273th of its original volume at 0°C for every 1°C change in temperature, when the pressure remains constant. This statement is called

    • Options
    • A. Boyle's law
    • B. Charles' law
    • C. Gay-Lussac law
    • D. Joule's law
      • Discuss
    • 5. Which of the following is the correct statement?

    • Options
    • A. All the reversible engines have the same efficiency.
    • B. All the reversible and irreversible engines have the same efficiency.
    • C. Irreversible engines have maximum efficiency.
    • D. All engines are designed as reversible in order to obtain maximum efficiency.
      • Discuss
    • 6. One molecule of oxygen is __________ times heavier than the hydrogen atom.

    • Options
    • A. 12
    • B. 14
    • C. 16
    • D. 32
      • Discuss
    • 7. To ensure complete and rapid combustion of a fuel, some quantity of air, in excess of the theoretical or minimum air is supplied.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 8. According to Kelvin-Planck's statement, a perpetual motion of the __________ is impossible.

    • Options
    • A. first kind
    • B. second kind
      • Discuss
    • 9. Kerosene is distilled at

    • Options
    • A. 65° to 220°C
    • B. 220° to 345°C
    • C. 345° to 470°C
    • D. 470° to 550°C
      • Discuss
    • 10. High air-fuel ratio in gas turbines

    • Options
    • A. increases power output
    • B. improves thermal efficiency
    • C. reduces exhaust temperature
    • D. do not damage turbine blades
      • Discuss

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.