The length AB of a pipe ABC in which the liquid is flowing has diameter (d1) and is suddenly contracted to diameter (d2) at B which is constant for the length BC. The loss of head due to sudden contraction, assuming coefficient of contraction as 0.62, is

Hydraulics and Fluid Mechanics in ME
The length AB of a pipe ABC in which the liquid is flowing has diameter (d1) and is suddenly contracted to diameter (d2) at B which is constant for the length BC. The loss of head due to sudden contraction, assuming coefficient of contraction as 0.62, is

0.375 v₂²/2g

v₂²/2g

0.5 v₁²/2g

v₁²/2g

0.375 v₂²/2g

v₂²/2g

0.5 v₁²/2g

v₁²/2g

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Hydraulics and Fluid Mechanics in ME
The force exerted by a jet of water impinging normally on a plate which due to the impact of jet, moves in the direction of jet with a velocity v is

[wa (V - v)]/2g

[wa (V - v)²]/2g

[wa (V - v²)]/g

[wa (V - v)]/g

[wa (V - v)]/2g

[wa (V - v)²]/2g

[wa (V - v²)]/g

[wa (V - v)]/g

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Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the elastic force is called

Froude's number

Weber's number

Reynold's number

Mach number

Froude's number

Weber's number

Reynold's number

Mach number

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Hydraulics and Fluid Mechanics in ME
The horizontal component of buoyant force is

Negligible

Zero

Same as buoyant force

None of these

Negligible

Zero

Same as buoyant force

None of these

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Hydraulics and Fluid Mechanics in ME
Viscosity of water in comparison to mercury is

Same

Higher

Lower

Higher/lower depending on temperature

Same

Higher

Lower

Higher/lower depending on temperature

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Hydraulics and Fluid Mechanics in ME
With the same cross-sectional area and immersed in same turbulent flow, the largest total drag will be on

a circular disc of plate held normal to flow

a cylinder

a sphere

a streamlined body

a circular disc of plate held normal to flow

a cylinder

a sphere

a streamlined body

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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME The length AB of a pipe ABC in which the liquid is flowing has diameter (d1) and is suddenly contracted to diameter (d2) at B which is constant for the length BC. The loss of head due to sudden contraction, assuming coefficient of contraction as 0.62, is

Hydraulics and Fluid Mechanics in ME The force exerted by a jet of water impinging normally on a plate which due to the impact of jet, moves in the direction of jet with a velocity v is

Hydraulics and Fluid Mechanics in ME The ratio of the inertia force to the elastic force is called

Hydraulics and Fluid Mechanics in ME The horizontal component of buoyant force is

Hydraulics and Fluid Mechanics in ME Viscosity of water in comparison to mercury is

Hydraulics and Fluid Mechanics in ME With the same cross-sectional area and immersed in same turbulent flow, the largest total drag will be on

Hydraulics and Fluid Mechanics in ME
The length AB of a pipe ABC in which the liquid is flowing has diameter (d1) and is suddenly contracted to diameter (d2) at B which is constant for the length BC. The loss of head due to sudden contraction, assuming coefficient of contraction as 0.62, is

Hydraulics and Fluid Mechanics in ME
The force exerted by a jet of water impinging normally on a plate which due to the impact of jet, moves in the direction of jet with a velocity v is

Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the elastic force is called

Hydraulics and Fluid Mechanics in ME
The horizontal component of buoyant force is

Hydraulics and Fluid Mechanics in ME
Viscosity of water in comparison to mercury is

Hydraulics and Fluid Mechanics in ME
With the same cross-sectional area and immersed in same turbulent flow, the largest total drag will be on