SSC JE Mechanical Engineering 23rd Jan 2018 Shift-1

Instructions

For the following questions answer them individually

Question 191

Which of the following advantages is/are possessed by a Kaplan turbine over a Francis turbine ?
1. Low frictional losses
2. Part load efficiency is considerably high
3. More compact and smaller in size

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Question 192

he stream function $$ \psi = x^{3}- y^{3}$$ is observed for a two dimensional flow field. What is the magnitude of the velocity at point (1, -1)?

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Question 193

Non uniform flow occurs when

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Question 194

The length of divergent portion of venturimeter in comparison to convergent portion is

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Question 195

In order that flow takes place between two points in a pipeline, the differential pressure between these points must be more than

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Question 196

Head developed by a centrifugal pump depends on ________.

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Question 197

- Low specific speed of turbine implies it is

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Question 198

The figure below shows the relation ship between power(P) and discharge (Q) for different vane exit angles of centrifugal pump .In the figure given below curve B holds good for?

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Question 199

The specific speed of a turbine is the speed of such a turbine, identical with a given turbine, which

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Question 200

In reaction turbine

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