Question

During the opening of a valve in a pipeline, the flow is what ?

Answer 1

During the opening of valve in a pipeline the flow of the fluid will be the  continuous and periodic so the flow will be the steady flow as the  as the there will be the constant pattern of flow.
Also, in case of the water flow as the flow  will be without any resistance so the flow will be called as non-viscous flow.
Also upon opening of valve the the the pressure of the fluid will be changed from higher to lower.

Answer 2

Answer:

the pressure will change from high to low.

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