Fluid Mechanics The hydraulic radius for flow in a rectangular duct of cross-sectional dimension H, W is √(HW/π) 2HW/(H + W)² HW/2(H + W)² HW/4(H + W)² √(HW/π) 2HW/(H + W)² HW/2(H + W)² HW/4(H + W)² 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 A lubricant 100 times more viscous than water would have a viscosity (in Pa.s) 10 1 0.01 0.1 10 1 0.01 0.1 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics What is the ratio of displacement thickness to nominal thickness for a linear distribution of velocity in the boundary layer on a flat plate? 1 1.5 0.5 2 1 1.5 0.5 2 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics A centrifugal pump is used to pump water through a horizontal distance of 150 m, and then raised to an overhead tank 10 m above. The pipe is smooth with an I.D of 50 mm. What head (m of water) must the pump generate at its exit (E) to deliver water at a flow rate of 0.001 m³/s? The Fanning friction factor, f is 0.0062. 11 m 20 m 10 m 12 m 11 m 20 m 10 m 12 m ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Steady uniform flow is represented by flow through a/an None of these Expanding tube at constant rate Long pipe at constant rate Long pipe at decreasing rate None of these Expanding tube at constant rate Long pipe at constant rate Long pipe at decreasing rate ANSWER DOWNLOAD EXAMIANS APP
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