A centrifugal pump is used to pump water at $50$oC from a reservoir. Pressure at

the reservoir surface is atmospheric pressure. Estimate NPSH available in

metres of water column if suction lift is $3$ m$,$ suction line pressure drop is $1$ m

and vapour pressure of water at $50$oC is $0\mathrm{.}5$ m of water. If NPSH requirement,

as given by the manufacturer, is $4$ m$,$ state whether this pump is suitable for the

situation. Give reason for your answer