Hydraulics and Fluid Mechanics in ME
The wake

always occurs after a separation point
is a region of high pressure intensity
always occurs before a separation point
None of these

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Hydraulics and Fluid Mechanics in ME
The purpose of a surge tank is

All of these
To control the pressure variations due to rapid changes in the pipe line flow
To regulate flow of water to turbines by providing necessary retarding head of water
To eliminate water hammer possibilities

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