For similarity, in addition to models being geometrically similar to prototype, the following in both cases should also be equal

Hydraulics and Fluid Mechanics in ME
For similarity, in addition to models being geometrically similar to prototype, the following in both cases should also be equal

ratio of inertial force to force due to surface tension

ratio of inertial force to force due to viscosity

ratio of inertial force to force due to gravitation

all the four ratios of inertial force to force due to viscosity, gravitation, surface tension, and elasticity

ratio of inertial force to force due to surface tension

ratio of inertial force to force due to viscosity

ratio of inertial force to force due to gravitation

all the four ratios of inertial force to force due to viscosity, gravitation, surface tension, and elasticity

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Hydraulics and Fluid Mechanics in ME
A square surface 3 m × 3 m lies in a vertical line in water pipe its upper edge at water surface. The hydrostatic force on square surface is

18,000 kg

27,000 kg

13,500 kg

9,000 kg

18,000 kg

27,000 kg

13,500 kg

9,000 kg

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Hydraulics and Fluid Mechanics in ME
A double overhung Pelton wheel has

Four runners

Four jets

Two runners

Two jets

Four runners

Four jets

Two runners

Two jets

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Hydraulics and Fluid Mechanics in ME
A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is

0.87

0.64

0.46

0.78

0.87

0.64

0.46

0.78

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Hydraulics and Fluid Mechanics in ME
Dynamic viscosity of most of the liquids with rise in temperature

Decreases

Increases

Remain unaffected

Unpredictable

Decreases

Increases

Remain unaffected

Unpredictable

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Hydraulics and Fluid Mechanics in ME
When a plate is immersed in a liquid parallel to the flow, it will be subjected to a pressure __________ that if the same plate is immersed perpendicular to the flow.

More than

Equal to

Less than

None of these

More than

Equal to

Less than

None of these

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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME For similarity, in addition to models being geometrically similar to prototype, the following in both cases should also be equal

Hydraulics and Fluid Mechanics in ME A square surface 3 m × 3 m lies in a vertical line in water pipe its upper edge at water surface. The hydrostatic force on square surface is

Hydraulics and Fluid Mechanics in ME A double overhung Pelton wheel has

Hydraulics and Fluid Mechanics in ME A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is

Hydraulics and Fluid Mechanics in ME Dynamic viscosity of most of the liquids with rise in temperature

Hydraulics and Fluid Mechanics in ME When a plate is immersed in a liquid parallel to the flow, it will be subjected to a pressure __________ that if the same plate is immersed perpendicular to the flow.

Hydraulics and Fluid Mechanics in ME
For similarity, in addition to models being geometrically similar to prototype, the following in both cases should also be equal

Hydraulics and Fluid Mechanics in ME
A square surface 3 m × 3 m lies in a vertical line in water pipe its upper edge at water surface. The hydrostatic force on square surface is

Hydraulics and Fluid Mechanics in ME
A double overhung Pelton wheel has

Hydraulics and Fluid Mechanics in ME
A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is

Hydraulics and Fluid Mechanics in ME
Dynamic viscosity of most of the liquids with rise in temperature

Hydraulics and Fluid Mechanics in ME
When a plate is immersed in a liquid parallel to the flow, it will be subjected to a pressure __________ that if the same plate is immersed perpendicular to the flow.