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. NPSH required BHP required by the pump All of these Head of the liquid pumped NPSH required BHP required by the pump All of these Head of the liquid pumped 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/π) HW/2(H + W)² HW/4(H + W)² 2HW/(H + W)² √(HW/π) HW/2(H + W)² HW/4(H + W)² ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The equivalent diameter for flow through a rectangular duct of width B and height H is HB/(H + B) HB/2(H + B) 2HB/(H + B) 4HB/(H + B) HB/(H + B) HB/2(H + B) 2HB/(H + B) 4HB/(H + B) ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Reciprocating pumps compared to centrifugal pumps Are not subject to air binding Deliver liquid at uniform pressure Can be operated with delivery valve closed Can handle slurries more efficiently Are not subject to air binding Deliver liquid at uniform pressure Can be operated with delivery valve closed Can handle slurries more efficiently ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics As per Newton's law of viscosity, the shear stress for a given rate of angular deformation of fluid is proportional to(where, μ = fluid viscosity) 1/μ² μ 1/μ μ² 1/μ² μ 1/μ μ² ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Reynolds number for water flow through a tube of I.D. 5 cm is 1500. If a liquid of 5 centipoise viscosity and 0.8 specific gravity flows in the same pipe at the same velocity, then the pressure drop will Data insufficient to predict pressure drop Decrease Increase Remain same Data insufficient to predict pressure drop Decrease Increase Remain same ANSWER DOWNLOAD EXAMIANS APP
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