A turbine works at 20 m head and speed of 500 rpm. Its 1:2 scale model – McqOptions

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1.	A turbine works at 20 m head and speed of 500 rpm. Its 1:2 scale model to be tested at samehead should have a rotational speed of
A.	1000rpm
B.	750rpm
C.	500rpm
D.	250rpm
Answer» E.

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