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 Varies parabolically across the cross-section Remains constant over 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 Varies parabolically across the cross-section Remains constant over the cross-section ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Turbine impeller Produces only tangential current Does not produce tangential current Produces only radial current Is effective over wide range of viscosities Produces only tangential current Does not produce tangential current Produces only radial current Is effective over wide range of viscosities ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics For laminar flow of a shear thinning liquid in a pipe, if the volumetric flow rate is doubled, the pressure gradient will increase by a factor of >2 43832 2 >2 43832 2 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics If the head over the triangular notch is doubled, the discharge will increase by __________ times. 4 2.828 2 5.657 4 2.828 2 5.657 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 Either opened or closed; depending on the fluid viscosity Opened Closed Either opened or closed ; it does not make any difference Either opened or closed; depending on the fluid viscosity Opened ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Pressure drag does not depend upon the Length of the body in flow direction Roughness of surface of the body Pressure of main flow only All of these Length of the body in flow direction Roughness of surface of the body Pressure of main flow only All of these ANSWER DOWNLOAD EXAMIANS APP
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