SSC JE Mechanical Engineering 25 Sep 2019 Shift 1 Paper

Question : 123 of 200

Marks: +1, -0

Identify the incorrect statement, from the following options:
The specific speed of a hydraulic turbine (given N = RPM, P = power output, H = input head to a turbine design,

N_S

is its specific speed)_____.

Gives RPM of a turbine with the same hydraulic efficiency as the original, i.e., same design
Is $N_S = NP\/H^2$
$N_S = NP^{0.5}\/H^{1.25}$
RPM of a geometrically and dynamically similar turbine which will develop 1 kW power under 1 m

Validate

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