Hydraulics and Fluid Mechanics in ME Mechanical efficiency of a centrifugal pump is the ratio of Manometric head to the energy supplied by the impeller per kN of water Actual work-done by the pump to the energy supplied to the pump by the prime mover Energy supplied to the pump to the energy available at the impeller Energy available at the impeller to the energy supplied to the pump by the prime mover Manometric head to the energy supplied by the impeller per kN of water Actual work-done by the pump to the energy supplied to the pump by the prime mover Energy supplied to the pump to the energy available at the impeller Energy available at the impeller to the energy supplied to the pump by the prime mover ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In a lock-gate, the reaction between two gates is (where P = Resultant pressure on the lock gate, and α = Inclination of the gate with the normal to the side of the lock) 2p/sinα 2p/sin (α/2) p/2sinα p/sinα 2p/sinα 2p/sin (α/2) p/2sinα p/sinα ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The theoretical velocity of jet at vena contracta is (where H = Head of water at vena contracta) 2gH 2g × √H √(2gh) H × √(2g) 2gH 2g × √H √(2gh) H × √(2g) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch. Plus Divide None of these Minus Plus Divide None of these Minus ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A weir is said to be broad crested weir, if the width of the crest of the weir is ________ half the height of water above the weir crest. More than Less than None of these Equal to More than Less than None of these Equal to ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Which of the following has highest coefficient of discharge ? CipoUetti weir Borda’s mouthpiece running full sharp edged orifice venturimeter CipoUetti weir Borda’s mouthpiece running full sharp edged orifice venturimeter ANSWER DOWNLOAD EXAMIANS APP
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