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MCQs

Total Questions : 1058 | Page 92 of 106 pages
Question 911. The gas turbine cycle with regenerator improves
  1.    None of these
  2.    Work ratio
  3.    Avoid pollution
  4.    Thermal efficiency
 Discuss Question
Answer: Option D. -> Thermal efficiency
Question 912. Which of the following is the property of a system?
  1.    Enthalpy and entropy
  2.    All of these
  3.    Pressure and temperature
  4.    Volume and density
 Discuss Question
Answer: Option B. -> All of these
Question 913. Thermal power plant works on
  1.    Joule cycle
  2.    Otto cycle
  3.    Carnot cycle
  4.    Rankine cycle
 Discuss Question
Answer: Option D. -> Rankine cycle
Question 914. Which law states that the specific heat of a gas remains constant at all temperatures and pressures?
  1.    Joule's Law
  2.    Boyle's Law
  3.    Regnault's Law
  4.    Charles' Law
 Discuss Question
Answer: Option C. -> Regnault's Law
Question 915. The efficiency of a Carnot engine depends on
  1.    Size of engine
  2.    Temperatures of source and sink
  3.    Design of engine
  4.    Working substance
 Discuss Question
Answer: Option B. -> Temperatures of source and sink
Question 916. A cycle consisting of two adiabatic and two constant pressure processes is known as
  1.    Otto cycle
  2.    Ericsson cycle
  3.    Joule cycle
  4.    Stirling cycle
 Discuss Question
Answer: Option C. -> Joule cycle
Question 917. The temperature at which the volume of a gas becomes zero is called
  1.    None of these
  2.    Absolute temperature
  3.    Absolute zero temperature
  4.    Absolute scale of temperature
 Discuss Question
Answer: Option C. -> Absolute zero temperature
Question 918. In a steady flow process, the ratio of
  1.    Mass flow at inlet and outlet is same
  2.    Work transfer is constant
  3.    All of these
  4.    Heat transfer is constant
 Discuss Question
Answer: Option C. -> All of these
Question 919. Absolute zero pressure will occur
  1.    At a temperature of 273°K
  2.    At sea level
  3.    When molecular momentum of the system becomes zero
  4.    Under vacuum conditions
 Discuss Question
Answer: Option C. -> When molecular momentum of the system becomes zero
Question 920. A process, in which the temperature of the working substance remains constant during its expansion or compression, is called
  1.    Adiabatic process
  2.    Hyperbolic process
  3.    Isothermal process
  4.    Polytropic process
 Discuss Question
Answer: Option C. -> Isothermal process

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