A turbine is required to develop 1500 kW at 300 r.p.m. under a head of 150 m. Which of the following turbine should be used?
A. Pelton wheel with one nozzle
B. Pelton wheel with two or more nozzles
C. Kaplan turbine
D. Francis turbine
Answer: Option A

Francis turbine
Ns = N√P/H5/4 then find Ns around 30 rpm and option a right
Kaplan turbine