Fluid Mechanics A stream line is A line connecting the mid points of flow cross-section Fixed in space in steady flow Drawn normal to the velocity vector at every point Always the path of particle A line connecting the mid points of flow cross-section Fixed in space in steady flow Drawn normal to the velocity vector at every point Always the path of particle ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Velocity distribution for flow between two fixed parallel plates Is constant over the entire cross-section Varies parabolically across the section None of these Is zero at the plates and increases linearly to the midplane Is constant over the entire cross-section Varies parabolically across the section None of these Is zero at the plates and increases linearly to the midplane ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The unit of velocity head is ft-lb/sec ft-lb/ft³ ft-lbf/lb ft-lbf/sec ft-lb/sec ft-lb/ft³ ft-lbf/lb ft-lbf/sec ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Uniform fluid flow occurs, when the derivative of the flow variables satisfy the following condition. ∂/∂t = constant ∂/∂s = 0 ∂/∂t = constant ∂/∂t = 0 ∂/∂t = constant ∂/∂s = 0 ∂/∂t = constant ∂/∂t = 0 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 Decreases as V² None of these Decreases linearly with V Increases linearly with V Decreases as V² None of these Decreases linearly with V Increases linearly with V ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Design of the casing of centrifugal pump should be such as to minimise the Loss of static head Loss of kinetic head None of these Back flow through impeller Loss of static head Loss of kinetic head None of these Back flow through impeller ANSWER DOWNLOAD EXAMIANS APP
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