Fluid Mechanics Purpose of relief valve in a reciprocating pump is to Protect the pump against developing excessive pressure Reduce the discharge pressure Facilitate unidirectional flow of liquid Control the rate of discharge Protect the pump against developing excessive pressure Reduce the discharge pressure Facilitate unidirectional flow of liquid Control the rate of discharge ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Shear stress in a fluid flowing in a round pipe Is zero at the centre and varies linearly with the radius Is zero at the wall and increases linearly to the centre Remains constant over the cross-section Varies parabolically across the cross-section Is zero at the centre and varies linearly with the radius Is zero at the wall and increases linearly to the centre Remains constant over the cross-section Varies parabolically across the cross-section 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 Remain same Decrease Increase Data insufficient to predict pressure drop Remain same Decrease Increase Data insufficient to predict pressure drop ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics While starting a centrifugal pump, its delivery valve should be kept Closed Opened Either opened or closed ; it does not make any difference Either opened or closed; depending on the fluid viscosity Closed Opened Either opened or closed ; it does not make any difference Either opened or closed; depending on the fluid viscosity ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Reynolds number for flow of water at room temperature through 2 cm dia pipe at an average velocity of 5 cm/sec is around 10 1000 100 2000 10 1000 100 2000 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The __________ is measured by a piezometric opening. Point velocity Static pressure Dynamic pressure Total pressure Point velocity Static pressure Dynamic pressure Total pressure ANSWER DOWNLOAD EXAMIANS APP
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