The specific speed of a turbine is defined as the speed of a member of the same homologous series of a such a size that it.
Option (A)
Delivers unit Discharge at unit head.
Option (B)
Delivers unit discharge at unit power
Delivers unit power at unit discharge
Produces unit power under the unit head
Correct Option:
Question Solution:
Specific speed : It is defined as the speed of a similar turbine working under a head of 1 m to produce a power output of 1 kW . The specific speed is useful to compare the performance of various type of turbines. The specific speed differs per different types of turbines and is same for the model and actual turbine
Ns = (NÖP/H5/4)