Fluid Mechanics While starting an axial flow pump, its delivery valve should be kept None of these Either open or closed Closed Open None of these Either open or closed Closed Open ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The hydraulic radius for flow in a rectangular duct of cross-sectional dimension H, W is 2HW/(H + W)² HW/4(H + W)² √(HW/π) HW/2(H + W)² 2HW/(H + W)² HW/4(H + W)² √(HW/π) HW/2(H + W)² ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics In case of turbulent flow of a Newtonion fluid in a straight pipe, the maximum velocity is equal to (where, Vavg = average fluid velocity) 1.5 Vavg 1.8 Vavg Vavg 1.2 Vavg 1.5 Vavg 1.8 Vavg Vavg 1.2 Vavg ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Consider a centrifugal pump having a specific impeller diameter, fixed impeller speed pumping a liquid of constant density at a particular discharge capacity. With decrease in the capacity of the pump, the __________ decreases. Head of the liquid pumped BHP required by the pump All of these NPSH required Head of the liquid pumped BHP required by the pump All of these NPSH required ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Shear stress in a fluid flowing in a round pipe Varies parabolically across the cross-section Is zero at the centre and varies linearly with the radius Remains constant over the cross-section Is zero at the wall and increases linearly to the centre Varies parabolically across the cross-section Is zero at the centre and varies linearly with the radius Remains constant over the cross-section Is zero at the wall and increases linearly to the centre ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics A centrifugal pump used to pump water is used to pump an oil with specific gravity of 0.8 at the same rate. The power consumption will now Remain same Data insufficient to predict Decrease Increase Remain same Data insufficient to predict Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
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