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

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)?

Question 193

Non uniform flow occurs when


Question 194

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

Question 195

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

Question 196

Head developed by a centrifugal pump depends on ________.


Question 197

- Low specific speed of turbine implies it is

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?

Question 199

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


Question 200

In reaction turbine

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