Fluid Mechanics Which of the following is used for very accurate measurement of flow of gas at low velocity? Hot wire annemometer Segmental orificemeter Pitot tube Rotameter Hot wire annemometer Segmental orificemeter Pitot tube Rotameter ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics While starting a centrifugal pump, its delivery valve should be kept Closed Either opened or closed ; it does not make any difference Opened Either opened or closed; depending on the fluid viscosity Closed Either opened or closed ; it does not make any difference Opened Either opened or closed; depending on the fluid viscosity ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Cavitation in a centrifugal pump results from High discharge pressure High discharge rate Low barometric pressure High discharge velocity High discharge pressure High discharge rate Low barometric pressure High discharge velocity ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics A stream line is Drawn normal to the velocity vector at every point Fixed in space in steady flow A line connecting the mid points of flow cross-section Always the path of particle Drawn normal to the velocity vector at every point Fixed in space in steady flow A line connecting the mid points of flow cross-section Always the path of particle ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Net positive suction head (NPSH) of a centrifugal pump must be Less than barometric pressure Less than the vapour pressure of the liquid Greater than the vapour pressure of the liquid Equal to the vapour pressure of the liquid Less than barometric pressure Less than the vapour pressure of the liquid Greater than the vapour pressure of the liquid Equal to the vapour pressure of the liquid ANSWER DOWNLOAD EXAMIANS APP
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
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