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  • Question
  • A process of heating crude oil to a high temperature under a very high pressure to increase the yield of lighter distillates, is known as


  • Options
  • A. cracking
  • B. carbonisation
  • C. fractional distillation
  • D. full distillation

  • Correct Answer
  • cracking 


  • Thermodynamics problems


    Search Results


    • 1. Which of the following process can be made reversible with the help of a regenerator?

    • Options
    • A. Constant pressure process
    • B. Constant volume process
    • C. Constant pvn process
    • D. all of these
    • Discuss
    • 2. A cycle consisting of two constant pressure and two isothermal processes is known as Ericsson cycle.

    • Options
    • A. True
    • B. False
    • Discuss
    • 3. If in the equation pvn = C, the value of n = 1, then the process is called isothermal process.

    • Options
    • A. True
    • B. False
    • Discuss
    • 4. The specific volume of a system is an __________ property.

    • Options
    • A. extensive
    • B. intensive
    • Discuss
    • 5. A definite area or a space where some thermodynamic process takes place is known as

    • Options
    • A. thermodynamic system
    • B. thermodynamic cycle
    • C. thermodynamic process
    • D. thermodynamic law
    • Discuss
    • 6. The amount of heat required to raise the temperature of __________ water through one degree is called kilojoule.

    • Options
    • A. 1 g
    • B. 10 g
    • C. 100 g
    • D. 1000 g
    • Discuss
    • 7. A molecule consisting of one atom is known as

    • Options
    • A. monoatomic
    • B. diatomic
    • C. triatomic
    • D. polyatomic
    • Discuss
    • 8. In a reaction turbine

    • Options
    • A. the steam is allowed to expand in the nozzle, where it gives a high velocity before it enters the moving blades
    • B. the expansion of steam takes place partly in the fixed blades and partly in the moving blades
    • C. the steam is expanded from a high pressure to a condenser pressure in one or more nozzles
    • D. the pressure and temperature of steam remains constant
    • Discuss
    • 9. The critical pressure ratio for gases is

    • Options
    • A. 0.528
    • B. 0.546
    • C. 0.577
    • D. 0.582
    • Discuss
    • 10. The velocity of steam at throat of the nozzle is __________ the velocity of sound.

    • Options
    • A. equal to
    • B. less than
    • C. more than
    • Discuss


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