1. Explain briefly the concept of linear momentum equation for a control volume. 2. What do you understand by the term velocity triangle as used in the analysis of hydraulic machines? Write the velocity triangles for the inlet and outlet of a flow of a jet of water over a moving curved vane and explain the various notations used. 3. A jet of water from a nozzle impinges on a moving curved vane tangentially at one edge and exits at the other end. How is the efficiency of power transmission of this system defined?
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