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Hydraulics And Fluid Mechanics
practice.

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Q161

Open question

Reynolds number is significant in

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Q162

Open question

Mach number is significant in

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Q163

Open question

A piece of metal of specific gravity 13.6 is placed in mercury of specific gravity 13.6, what fraction of it volume is under mercury?

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Q164

Open question

The viscosity of a gas

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Q165

Open question

The pressure at the summit of a syphon is

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Q166

Open question

In a free vortex motion, the radial component of velocity everywhere is

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Q167

Open question

A fluid in equilibrium can’t sustain

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Q168

Open question

The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to

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Q169

Open question

If velocity is zero over

\frac{1}{3}^{rd}

of a cross-section and is uniform over remaining

\frac{2}{3}^{rd}

of the cross-section, then the correction factor for kinetic energy is

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Q170

Open question

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

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Q171

Open question

If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.2 kg/cm², the pressure at a depth of 50 m below the oil surface will be

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Q172

Open question

The pressure in the air space above an oil (sp. gr. 0.8) surface in a tank is 0.1 kg/cm². The pressure at 2.5 m below the oil surface will be

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Q173

Open question

If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be

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Q174

Open question

The hydraulic grade line is

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Q175

Open question

During the opening of a valve in a pipe line, the flow is

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Q176

Open question

A balloon lifting in air follows the following principle

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Q177

Open question

Choose the wrong statement

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Q178

Open question

In a forced vortex motion, the velocity of flow is

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Q179

Open question

When the flow parameters at any given instant remain same at every point, then flow is said to be

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Q180

Open question

The atmospheric pressure with rise in altitude decreases

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Hydraulics And Fluid Mechanicspractice.

Hydraulics And Fluid Mechanics
practice.