Why is operating pressure of boiler designed ?
A. To maintain economic equivalence
B. For not decreasing efficiency
C. No such operating pressures are designed
D. None of the mentioned
Answer:A
Why is operating pressure of boiler designed ?
A. To maintain economic equivalence B. For not decreasing efficiency C. No such operating pressures are designed D. None of the mentioned
Explanation: If boiler pressure is increased efficiency also increases. But if we keep on increasing boiler pressure to increase efficiency, Boilers that work under high pressure as costly and so boiler operating pressures are designed so that for a particular boiler it does not work beyond that pressure and it maintains economical equivalence.