Question

What factors does the speed of the machines depend upon?

(a) head

(b) blades

(c) type of turbine used

(d) head and type of turbine used

This question was posed to me by my college professor while I was bunking the class.

This intriguing question comes from Construction of Hydro-Generators in division Design of Synchronous Machines of Design of Electrical Machines

Answer 1

Correct option is (d) head and type of turbine used

The explanation is: The hydro-generators are generally low speed machines. The speed depends upon the head and the type of turbines used.