Fluid Mechanics As the velocity V and thus the Reynolds number of a flow past a sphere increases from very low value, the drag force for Re << 1 Decreases linearly with V Decreases as V² Increases linearly with V None of these Decreases linearly with V Decreases as V² Increases linearly with V None of these ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Specific speed of a centrifugal pump relates it with another pump having the Dynamic similarity Geometrical similarity Same speed Same efficiency Dynamic similarity Geometrical similarity Same speed Same efficiency 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) Vavg 1.2 Vavg 1.5 Vavg 1.8 Vavg Vavg 1.2 Vavg 1.5 Vavg 1.8 Vavg ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The equivalent diameter for flow through a rectangular duct of width B and height H is HB/2(H + B) HB/(H + B) 4HB/(H + B) 2HB/(H + B) HB/2(H + B) HB/(H + B) 4HB/(H + B) 2HB/(H + B) ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Cavitation in a centrifugal pump can be avoided by keeping the Inlet pressure low Outlet pressure low Inlet pressure high Outlet pressure high Inlet pressure low Outlet pressure low Inlet pressure high Outlet pressure high ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Interstage coolers are provided in a multistage compressor to None of these Achieve the exact delivery pressure Cool the delivered air Save power in compressing a given volume to a given pressure None of these Achieve the exact delivery pressure Cool the delivered air Save power in compressing a given volume to a given pressure ANSWER DOWNLOAD EXAMIANS APP
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