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MCQs

Total Questions : 1058 | Page 99 of 106 pages
Question 981. The compression ratio is the ratio of
  1.    Swept volume to clearance volume
  2.    Swept volume to total volume
  3.    Total volume to swept volume
  4.    Total volume to clearance volume
 Discuss Question
Answer: Option D. -> Total volume to clearance volume
Question 982. If a gas vapour is allowed to expand through a very minute aperture, then such a process is known as
  1.    Free expansion
  2.    Adiabatic expansion
  3.    Throttling
  4.    Hyperbolic expansion
 Discuss Question
Answer: Option C. -> Throttling
Question 983. In an irreversible process, there is a
  1.    Loss of heat
  2.    Gain of heat
  3.    No gain of heat
  4.    No loss of heat
 Discuss Question
Answer: Option A. -> Loss of heat
Question 984. The gas constant (R) is equal to the __________ of two specific heats.
  1.    Product
  2.    Ratio
  3.    Difference
  4.    Sum
 Discuss Question
Answer: Option C. -> Difference
Question 985. When the expansion or compression takes place according to the law pvn = C, the process is known as
  1.    Hyperbolic process
  2.    Polytropic process
  3.    Adiabatic process
  4.    Isothermal process
 Discuss Question
Answer: Option B. -> Polytropic process
Question 986. Second law of thermodynamics defines
  1.    Entropy
  2.    Work
  3.    Internal energy
  4.    Heat
 Discuss Question
Answer: Option A. -> Entropy
Question 987. Which of the following process can be made reversible with the help of a regenerator?
  1.    Constant volume process
  2.    All of these
  3.    Constant pvn process
  4.    Constant pressure process
 Discuss Question
Answer: Option B. -> All of these
Question 988. The value of 1 mm of Hg is equal to
  1.    1333 N/m2
  2.    13.33 N/m2
  3.    1.333 N/m2
  4.    133.3 N/m2
 Discuss Question
Answer: Option D. -> 133.3 N/m2
Question 989. Which of the following variables controls the physical properties of a perfect gas?
  1.    Pressure
  2.    All of these
  3.    Volume
  4.    Temperature
 Discuss Question
Answer: Option B. -> All of these
Question 990. Which of the following laws is applicable for the behaviour of a perfect gas?
  1.    Charles ‘law
  2.    Boyle's law
  3.    All of these
  4.    Gay Lussac’s law
 Discuss Question
Answer: Option C. -> All of these

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