Lakshya Education MCQs

Question: A process, in which the temperature of the working substance remains constant during its expansion or compression, is called
Options:
A. Adiabatic process
B. Isothermal process
C. Hyperbolic process
D. Polytropic process
Answer: Option B

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More Questions on This Topic :

Question 1. The ideal efficiency of a brayton cycle without regeneration, with increase in pressure ratio will
  1.     Increase
  2.     Decrease
  3.     Remain unchanged
  4.     Increase/decrease depending on application
Answer: Option A
Question 2. A cycle consisting of two constant pressure and two isentropic processes is known as
  1.     Carnot cycle
  2.     Stirling cycle
  3.     Otto cycle
  4.     None of these
Answer: Option D
Question 3. A cycle consisting of one constant pressure, one constant volume and two isentropic processes is known as
  1.     Otto cycle
  2.     Stirling cycle
  3.     Carnot cycle
  4.     Diesel cycle
Answer: Option D
Question 4. In a steady flow process, the ratio of
  1.     Heat transfer is constant
  2.     Work transfer is constant
  3.     Mass flow at inlet and outlet is same
  4.     All of these
Answer: Option D
Question 5. The temperature at which the volume of a gas becomes zero is called
  1.     Absolute scale of temperature
  2.     Absolute zero temperature
  3.     Absolute temperature
  4.     None of these
Answer: Option B
Question 6. Thermal power plant works on
  1.     Carnot cycle
  2.     Joule cycle
  3.     Rankine cycle
  4.     Otto cycle
Answer: Option C

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