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Steam Boilers - Interview Questions and Answers

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146. 100% efficiency of a thermal cycle cannot be achieved because of
A. frictional losses
B. it is not possible to achieve 0�K temperature
C. leakage
D. non-availability of ideal substance
E. none of the above.
Explanation:
147. Superheating of steam is done at
A. constant volume
B. constant temperature
C. constant pressure
D. constant entropy
E. constant enthaply.
Explanation:
148. Fire tube boilers are those in which
A. flue gases pass through tubes and water around it
B. water passes through the tubes and flue gases around it
C. forced circulation takes place
D. tubes are laid vertically
E. none of the above.
Explanation:
149. Lancashire boiler is of
A. stationary
B. horizontal type
C. natural circulation type
D. internally fired type
E. all of the above.
Explanation:
150. An ideal regenerative cycle is
A. equal to carnot cycle
B. less than carnot cycle
C. more than carnot cycle
D. could be anything
E. none of the above.
Explanation:
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