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Question 1. The property of a working substance which increases or decreases as the heat is supplied or removed in a reversible manner, is known as
  1.     Enthalpy
  2.     Internal energy
  3.     Entropy
  4.     External energy
Answer: Option C

Question 2. The compression ratio is the ratio of
  1.     Total volume to swept volume
  2.     Swept volume to clearance volume
  3.     Swept volume to total volume
  4.     Total volume to clearance volume
Answer: Option D

Question 3. If a gas vapour is allowed to expand through a very minute aperture, then such a process is known as
  1.     Free expansion
  2.     Hyperbolic expansion
  3.     Adiabatic expansion
  4.     Throttling
Answer: Option D

Question 4. The thermodynamic difference between a rankine cycle working with saturated steam and the carnot cycle is that
  1.     Carnot cycle can't work with saturated steam
  2.     Heat is supplied to water at temperature below the maximum temperature of the cycle
  3.     A Rankine cycle receives heat at two places
  4.     Rankine cycle is hypothetical
Answer: Option B

Question 5. The ratio of specific heat at constant pressure (cp) and specific heat at constant volume (cv) is
  1.     Equal to one
  2.     Less than one
  3.     Greater than one
  4.     None of these
Answer: Option C

Question 6. The thermodynamic difference between a rankine cycle working with saturated steam and the carnot cycle is that
  1.     Carnot cycle can't work with saturated steam
  2.     Heat is supplied to water at temperature below the maximum temperature of the cycle
  3.     A Rankine cycle receives heat at two places
  4.     Rankine cycle is hypothetical
Answer: Option B