Question
Download Solution PDFThe specific speed of a turbine is the speed of an imaginary turbine, identical with the given turbine, which
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
The specific speed of a turbine is defined as, the speed of a geometrically similar Turbine that would develop unit power when working under a unit head (1m head). Is prescribed by the relation \({N_s} = \frac{{N\sqrt P }}{{{H^{\frac{5}{4}}}}}\)
- Low specific speed turbine: The specific speed is less than 50. (varying from 10 to 35 for single jet and up to 50 for a double jet) Example: Pelton wheel turbine
- Medium-specific turbine: The specific speed varies from 50 to 250. Example: Francis turbine
- High specific turbine: the specific speed is more than 250. Example: Kaplan or propeller turbine
Last updated on May 30, 2025
-> The ISRO Technical Assistant recruitment 2025 notification has been released at the official website.
-> Candidates can apply for ISRO recruitment 2025 for Technical Assistant from June 4 to 18.
-> A total of 83 vacancies have been announced for the post of Technical Assistant.
-> The Selection process consists of a written test and a Skill test.
-> Candidates can also practice through ISRO Technical Assistant Electrical Test Series, ISRO Technical Assistant Electronics Test Series, and ISRO Technical Assistant Mechanical Test Series to improve their preparation and increase the chance of selection.