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 as V² Decreases linearly with V Increases linearly with V None of these Decreases as V² Decreases linearly with V Increases linearly with V None of these ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Foot valves are provided in the suction line of a centrifugal pump to Control the liquid discharge Minimise the fluctuation in discharge Avoid priming, every time we start the pump Remove the contaminant present in the liquid Control the liquid discharge Minimise the fluctuation in discharge Avoid priming, every time we start the pump Remove the contaminant present in the liquid ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Steady uniform flow is represented by flow through a/an Long pipe at decreasing rate Long pipe at constant rate None of these Expanding tube at constant rate Long pipe at decreasing rate Long pipe at constant rate None of these Expanding tube at constant rate ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Cavitation in a centrifugal pump results from Low barometric pressure High discharge rate High discharge velocity High discharge pressure Low barometric pressure High discharge rate High discharge velocity High discharge pressure ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics A lubricant 100 times more viscous than water would have a viscosity (in Pa.s) 1 0.01 10 0.1 1 0.01 10 0.1 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics If three pipes of different diameters, lengths & friction factors are connected in parallel, then (where, Q = flow rate, V= fluid velocity f = friction factor). V₁ = V₂ = V₃ Q₁ = Q₂ = Q₃ F = f₁ + f₂ + f₃ Q = Q₁ + Q₂ + Q₃ V₁ = V₂ = V₃ Q₁ = Q₂ = Q₃ F = f₁ + f₂ + f₃ Q = Q₁ + Q₂ + Q₃ ANSWER DOWNLOAD EXAMIANS APP
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