Lakshya Education MCQs

Question: The natural draught is produced by
Options:
A. Steam jet
B. Centrifugal fan
C. Chimney
D. Both (A) and (B)
Answer: Option C
Explanation :

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More Questions on This Topic :

Question 1. The object of producing draught in a boiler is
  1.     To provide an adequate supply of air for the fuel combustion
  2.     To exhaust the gases of combustion from the combustion chamber
  3.     To discharge the gases of combustion to the atmosphere through the chimney
  4.     All of the above
Answer: Option D
Question 2. The natural draught is produced by
  1.     Steam jet
  2.     Centrifugal fan
  3.     Chimney
  4.     Both (A) and (B)
Answer: Option C
Explanation :
Question 3. In a throttling process
  1.     Steam temperature remains constant
  2.     Steam pressure remains constant
  3.     Steam enthalpy remains constant
  4.     Steam entropy remains constant
Answer: Option C
Question 4. The major axis of elliptical manholes on the shell should be provided
  1.     Longitudinally
  2.     Circumferentially
  3.     On dished end
  4.     Anywhere
Answer: Option B
Question 5. In a throttling process
  1.     Steam temperature remains constant
  2.     Steam pressure remains constant
  3.     Steam enthalpy remains constant
  4.     Steam entropy remains constant
Answer: Option C
Question 6. The natural draught is produced by
  1.     Steam jet
  2.     Centrifugal fan
  3.     Chimney
  4.     Both (A) and (B)
Answer: Option C
Explanation :

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