Hydraulics and Fluid Mechanics in ME
In case of flow through parallel pipes,

Both (A) and (B)
The head loss for all the pipes is same
The total head loss is the sum of head losses in the various pipes
The total discharge is equal to the sum of discharges in the various pipes

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Hydraulics and Fluid Mechanics in ME
The function of guide vanes in a reaction turbine is to

Allow the water to enter the runner without shock
Allow the required quantity of water to enter the turbine
Allow the water to flow over them, without forming eddies
All of the listed here

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Hydraulics and Fluid Mechanics in ME
A glass tube of smaller diameter is used while performing an experiment for the capillary rise of water because

Glass tube is cheaper than a metallic tube
It is easier to see through the glass tube
It is not possible to conduct this experiment with any other tube
All of these

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