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JSSC JE (ME) :QUIZ-20 || Hydraulic Turbines and Pump
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Question 1
When the jet strikes to the flat stationary plate, as the velocity of jet doubles, the force exerted by the jet normal to the plate is
Question 2
At what angle does the jet deflect after striking a stationery vertical plate?
Question 3
The force exerted by a horizontal jet of water (in a direction normal to flow) impinging on a fixed plate inclined at an angle θ with the jet is
Question 4
The pressure inside a Pelton turbine casing during working _______.
Question 5
A Power plant produces power by converting kinetic energy of falling water to electric energy using a turbine. The turbine used should be capable of handling variation of flow. The turbine installed for the purpose is;
Question 6
Flow of water on the runner of Kaplan turbine ______.
Question 7
The expression for maximum hydraulic efficiency of Pelton turbine is given by ___________? If k is the outlet blade angle.
Question 8
An impulse turbine with a diameter of 1.4 m runs at 120 rpm. If the blade speed ratio is 0.5, then the inlet velocity of steam will be
Question 9
The efficiency of a centrifugal pump with Volute casing is ______ than the efficiency when Vortex casing is provided.
Question 10
Identify the operating characteristic curves shown in the figure.
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