For single stage impulse turbine optimum sigma value lies between ______
A. 0.4 and 0.6
B. 0.2 and 0.4
C. 0.1 and 0.3
D. none of the mentioned
Answer:A
For single stage impulse turbine optimum sigma value lies between ______
A. 0.4 and 0.6 B. 0.2 and 0.4 C. 0.1 and 0.3 D. none of the mentioned
Explanation: 0.4 and 0.6 are the boundary values for sigma in single stage impulse turbine which can be found from graph plotted between sigma and efficiency.