Fluid Mechanics Pressure drag does not depend upon the 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 Length of the body in flow direction ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics For water, when the pressure increases, the viscosity Decreases Also increases First decreases, and then increases Remains constant Decreases Also increases First decreases, and then increases Remains constant ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Steady fluid flow occurs, when the derivative of flow variables satisfy the following condition. ∂/∂t = 0 ∂/∂t = constant ∂/∂s = constant ∂/∂s = 0 ∂/∂t = 0 ∂/∂t = constant ∂/∂s = constant ∂/∂s = 0 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Priming of a centrifugal pump is done to Increase the mass flow rate of fluid Avoid chances of separation inside the impeller Develop effective pressure rise by the pump None of these Increase the mass flow rate of fluid Avoid chances of separation inside the impeller Develop effective pressure rise by the pump None of these ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Boundary layer separation occurs when the Velocity of sound is reached Cross-section of the channel is reduced Valve is closed in a pipeline Pressure reaches a minimum Velocity of sound is reached Cross-section of the channel is reduced Valve is closed in a pipeline Pressure reaches a minimum ANSWER DOWNLOAD EXAMIANS APP
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 Increases linearly with V None of these Decreases as V² Decreases linearly with V Increases linearly with V None of these Decreases as V² Decreases linearly with V ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS