According to Bernoulli's equation for steady ideal fluid flow

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According to Bernoulli's equation for steady ideal fluid flow

A. Principle of conservation of mass holds

B. Velocity and pressure are inversely proportional

C. Total energy is constant throughout

D. The energy is constant along a streamline but may vary across streamlines

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The total energy line lies over the centre line of the pipe by an amount equal to

A. Pressure head

B. Velocity head

C. Pressure head + velocity head

D. Pressure head - velocity head

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The intensity of pressure on an immersed surface __________ with the increase in depth.

A. Does not change

B. Increases

C. Decreases

D. None of these

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According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to

A. The weight of the body

B. More than the weight of the body

C. Less than the weight of the body

D. Weight of the fluid displaced by the body

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In a depressed nappe

A. The pressure below the nappe is atmospheric

B. The pressure below the nappe is negative

C. The pressure above the nappe is atmospheric

D. The pressure above the nappe is negative

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A flow in which __________ force is dominating over the viscosity is called turbulent flow.

A. Elastic

B. Surface tension

C. Viscous

D. Inertia

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The celerity (velocity) of a pressure wave in a fluid is given by (where K = Bulk modulus, and ρ = Density of the fluid)

A. K.ρ

B. K/ρ

C. ρ/K

D. None of these

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The unit of kinematic viscosity in S. I. units is

A. N-m/s

B. N-s/m²

C. m²/s

D. N-m

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The discharge through an external mouthpiece is given by (where a = Cross-sectional area of the mouthpiece, and H = Height of liquid above the mouthpiece)

A. 0.855 a.√(2gH)

B. 1.855 aH.√(2g)

C. 1.585 a.√(2gH)

D. 5.85 aH.√(2g)

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The resultant of all normal pressures acts

A. At C.G. of body

B. At center of pressure

C. Vertically upwards

D. At metacentre

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In open channels, the specific energy is the

A. Total energy per unit discharge

B. Total energy measured with respect to the datum passing through the bottom of the channel

C. Total energy measured above the horizontal datum

D. Kinetic energy plotted above the free surface of water

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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

A. v₁²/2g

B. v₂²/2g

C. 0.5 v₁²/2g

D. 0.375 v₂²/2g

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The discharge over a rectangular weir, considering the velocity of approach, is (whereH1 = H + Ha = Total height of water above the weir, H = Height of water over the crest of the weir, and Ha = Height of water due to velocity of approach)

A. (2/3) Cd × L.√2g [H1 - Ha]

B. (2/3) Cd × L. √2g [H1 ^3/2 - Ha ^3/2]

C. (2/3) Cd × L.√2g [H1 ² - Ha ²]

D. (2/3) Cd × L. √2g [H1 ^5/2 - Ha ^5/2]

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The coefficient of discharge in case of internal mouthpiece is __________ that of external mouthpiece.

A. Less than

B. More than

C. Equal to

D. None of these

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The meatcentric height of a ship is 0.6 m and the radius of gyration is 4 m. The time of rolling of a ship is

A. 4.1 s

B. 5.2 s

C. 10.4 s

D. 14.1 s

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The power absorbed (in watts) in overcoming the viscous resistance of a footstep bearing is

A. μ π³ N² R² /1800 t

B. μ π³ N² R⁴ /1800 t

C. μ π³ N² R² /3600 t

D. μ π³ N² R⁴ /3600 t

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Barometer is used to measure

A. Pressure in pipes, channels etc.

B. Atmospheric pressure

C. Very low pressure

D. Difference of pressure between two points

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The Cipoletti weir is a __________ weir.

A. Rectangular

B. Triangular

C. Trapezoidal

D. Circular

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A point, in a compressible flow where the velocity of fluid is zero, is called

A. Critical point

B. Vena contracta

C. Stagnation point

D. None of these

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The center of gravity of the volume of the liquid displaced by an immersed body is called

A. Metacentre

B. Center of pressure

C. Center of buoyancy

D. Center of gravity

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The discharge through a channel of rectangular section will be maximum, if

A. Its depth is twice the breadth

B. Its breadth is twice the depth

C. Its depth is thrice the breadth

D. Its breadth is thrice the depth

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The discharge through a siphon spillway is

A. C_d × a × √(2gH)

B. C_d × a × √(2g) × H^3/2

C. C_d × a × √(2g) × H²

D. C_d × a × √(2g) × H^5/2

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Bernoulli's equation is applied to

A. Venturimeter

B. Orifice meter

C. Pitot tube

D. All of these

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When a body is immersed wholly or partially in a liquid, it is lifted up by a force equal to the weight of liquid displaced by the body. This statement is called

A. Pascal's law

B. Archimedess principle

C. Principle of floatation

D. Bernoulli's theorem

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The surface tension of mercury at normal temperature compared to that of water is

A. More

B. Less

C. Same

D. More or less depending on size of glass tube

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All the terms of energy in Bernoulli's equation have dimension of

A. Energy

B. Work

C. Mass

D. Length

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The loss of pressure head in case of laminar flow is proportional to

A. Velocity

B. (Velocity)²

C. (Velocity)³

D. (Velocity)⁴

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If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be

A. h

B. wh

C. w/h

D. h/w

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Metacentric height is the distance between the metacentre and

A. Water surface

B. Center of pressure

C. Center of gravity

D. Center of buoyancy

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The Francis formula for the discharge over Cipoletti weir is

A. 1.84 LH^1/2

B. 1.84 LH

C. 1.84 LH^3/2

D. 1.84 LH^5/2

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Water is a __________ fluid.

A. Real

B. Ideal

C. Newtonian

D. Non-Newtonian

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Accepted Answer

D. The energy is constant along a streamline but may vary across streamlines

According to Bernoulli's equation for steady ideal fluid flow

Correct Answer :

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Related Questions

The total energy line lies over the centre line of the pipe by an amount equal to

The intensity of pressure on an immersed surface __________ with the increase in depth.

According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to

In a depressed nappe

A flow in which __________ force is dominating over the viscosity is called turbulent flow.

The celerity (velocity) of a pressure wave in a fluid is given by (where K = Bulk modulus, and ρ = Density of the fluid)

The unit of kinematic viscosity in S. I. units is

The discharge through an external mouthpiece is given by (where a = Cross-sectional area of the mouthpiece, and H = Height of liquid above the mouthpiece)

The resultant of all normal pressures acts

In open channels, the specific energy is the

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

The discharge over a rectangular weir, considering the velocity of approach, is (whereH1 = H + Ha = Total height of water above the weir, H = Height of water over the crest of the weir, and Ha = Height of water due to velocity of approach)

The coefficient of discharge in case of internal mouthpiece is __________ that of external mouthpiece.

The meatcentric height of a ship is 0.6 m and the radius of gyration is 4 m. The time of rolling of a ship is

The power absorbed (in watts) in overcoming the viscous resistance of a footstep bearing is

Barometer is used to measure

The Cipoletti weir is a __________ weir.

A point, in a compressible flow where the velocity of fluid is zero, is called

The center of gravity of the volume of the liquid displaced by an immersed body is called

The discharge through a channel of rectangular section will be maximum, if

The discharge through a siphon spillway is

Bernoulli's equation is applied to

When a body is immersed wholly or partially in a liquid, it is lifted up by a force equal to the weight of liquid displaced by the body. This statement is called

The surface tension of mercury at normal temperature compared to that of water is

All the terms of energy in Bernoulli's equation have dimension of

The loss of pressure head in case of laminar flow is proportional to

If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be

Metacentric height is the distance between the metacentre and

The Francis formula for the discharge over Cipoletti weir is

Water is a __________ fluid.

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According to Bernoulli's equation for steady ideal fluid flow

Correct Answer :

Show all Fluid Mechanics MCQ

Related Questions

The total energy line lies over the centre line of the pipe by an amount equal to

The intensity of pressure on an immersed surface __________ with the increase in depth.

According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to

In a depressed nappe

A flow in which __________ force is dominating over the viscosity is called turbulent flow.

The celerity (velocity) of a pressure wave in a fluid is given by (where K = Bulk modulus, and ρ = Density of the fluid)

The unit of kinematic viscosity in S. I. units is

The discharge through an external mouthpiece is given by (where a = Cross-sectional area of the mouthpiece, and H = Height of liquid above the mouthpiece)

The resultant of all normal pressures acts

In open channels, the specific energy is the

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

The discharge over a rectangular weir, considering the velocity of approach, is (whereH1 = H + Ha = Total height of water above the weir, H = Height of water over the crest of the weir, and Ha = Height of water due to velocity of approach)

The coefficient of discharge in case of internal mouthpiece is __________ that of external mouthpiece.

The meatcentric height of a ship is 0.6 m and the radius of gyration is 4 m. The time of rolling of a ship is

The power absorbed (in watts) in overcoming the viscous resistance of a footstep bearing is

Barometer is used to measure

The Cipoletti weir is a __________ weir.

A point, in a compressible flow where the velocity of fluid is zero, is called

The center of gravity of the volume of the liquid displaced by an immersed body is called

The discharge through a channel of rectangular section will be maximum, if

The discharge through a siphon spillway is

Bernoulli's equation is applied to

When a body is immersed wholly or partially in a liquid, it is lifted up by a force equal to the weight of liquid displaced by the body. This statement is called

The surface tension of mercury at normal temperature compared to that of water is

All the terms of energy in Bernoulli's equation have dimension of

The loss of pressure head in case of laminar flow is proportional to

If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be

Metacentric height is the distance between the metacentre and

The Francis formula for the discharge over Cipoletti weir is

Water is a __________ fluid.

Also checkout

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