Lakshya Education MCQs

Question: The ideal efficiency of a brayton cycle with regeneration, with increase in pressure ratio will
Options:
A. Increase
B. Decrease
C. Remain unchanged
D. Increase/decrease depending on application
Answer: Option B

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More Questions on This Topic :

Question 1. In a free expansion process
  1.     Work done is zero
  2.     Heat transfer is zero
  3.     Both (A) and (B) above
  4.     Work done is zero but heat increases
Answer: Option C
Question 2. The ideal efficiency of a brayton cycle with regeneration, with increase in pressure ratio will
  1.     Increase
  2.     Decrease
  3.     Remain unchanged
  4.     Increase/decrease depending on application
Answer: Option B
Question 3. The ratio of two specific heats of air is equal to
  1.     0.17
  2.     0.24
  3.     0.1
  4.     1.41
Answer: Option D
Question 4. One kg of carbon produces ________ kg of carbon dioxide.
  1.     3/7
  2.     11/7
  3.     11/3
  4.     4/11
Answer: Option C
Question 5. The ratio of two specific heats of air is equal to
  1.     0.17
  2.     0.24
  3.     0.1
  4.     1.41
Answer: Option D
Question 6. Absolute zero pressure will occur
  1.     At sea level
  2.     When molecular momentum of the system becomes zero
  3.     Under vacuum conditions
  4.     At a temperature of 273°K
Answer: Option B

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