A flow through an expanding tube at constant rate is called

Question

A flow through an expanding tube at constant rate is called

A. Steady uniform flow

B. Steady non-uniform flow

C. Unsteady uniform flow

D. Unsteady non-uniform flow

Share this question with your friends

Show all Fluid Mechanics MCQ

Comment

General energy equation holds for

A. Steady flow

B. Turbulent flow

C. Laminar flow

D. Non-uniform flow

Discuss this answer

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

Discuss this answer

Dimensions of surface tension are

A. ML°T⁻²

B. ML°T

C. ML r²

D. ML²T²

Discuss this answer

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

Discuss this answer

A flow in which the volume of a fluid and its density does not change during the flow is called _________ flow.

A. Incompressible

B. Compressible

C. Viscous

D. None of these

Discuss this answer

For pipes, turbulent flow occurs when Reynolds number is

A. Less than 2000

B. Between 2000 and 4000

C. More than 4000

D. Less than 4000

Discuss this answer

A tank of uniform cross-sectional area (A) containing liquid upto height (H1) has an orifice of cross-sectional area (a) at its bottom. The time required to bring the liquid level from H1 to H2 will be

A. 2A × √H₁/C_d × a × √(2g)

B. 2A × √H₂/C_d × a × √(2g)

C. 2A × (√H₁ - √H₂)/C_d × a × √(2g)

D. 2A × (√H^3/2 - √H3/2)/C_d × a × √(2g)

Discuss this answer

The Newton's law of resistance is based on the assumption that the

A. Planes of the body are completely smooth

B. Space around the body is completely filled with the fluid

C. Fluid particles do not exert any influence on one another

D. All of the above

Discuss this answer

An open vessel of water is accelerated up an inclined plane. The free water surface will

A. Be horizontal

B. Make an angle in direction of inclination of inclined plane

C. Make an angle in opposite direction to inclination of inclined plane

D. Any one of above is possible

Discuss this answer

In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to height of the liquid above the vena contracta.

A. Less than

B. More than

C. Equal to

D. None of these

Discuss this answer

Mercury does not wet glass. This is due to property of liquid known as

A. Adhesion

B. Cohesion

C. Surface tension

D. Viscosity

Discuss this answer

A channel is said to be of most economical cross-section, if

A. It gives maximum discharge for a given cross-sectional area and bed slope

B. It has minimum wetted perimeter

C. It involves lesser excavation for the designed amount of discharge

D. All of the above

Discuss this answer

The rise or depression of liquid in a tube due to surface tension will increase in size of tube will

A. Increase

B. Remain unaffected

C. May increase or decrease depending on the characteristics of liquid

D. Decrease

Discuss this answer

The total energy of a liquid particle in motion is equal to

A. Pressure energy + kinetic energy + potential energy

B. Pressure energy - (kinetic energy + potential energy)

C. Potential energy - (pressure energy + kinetic energy

D. Kinetic energy - (pressure energy + potential energy)

Discuss this answer

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

Discuss this answer

The hydraulic mean depth or the hydraulic radius is the ratio of

A. Area of flow and wetted perimeter

B. Wetted perimeter and diameter of pipe

C. Velocity of flow and area of flow

D. None of these

Discuss this answer

According to Bernoulli's equation

A. Z + p/w + v²/2g = constant

B. Z + p/w - v²/2g = constant

C. Z - p/w + v²/2g = constant

D. Z - p/w - v²/2g = constant

Discuss this answer

Gauge pressure at a point is equal to the absolute pressure __________ the atmospheric pressure.

A. Plus

B. Minus

C. Divide

D. Multiply

Discuss this answer

Capillary action is due to the

A. Surface tension

B. Cohesion of the liquid

C. Adhesion of the liquid molecules and the molecules on the surface of a solid

D. All of the above

Discuss this answer

The force per unit length is the unit of

A. Surface tension

B. Compressibility

C. Capillarity

D. Viscosity

Discuss this answer

In order to avoid tendency of separation at throat in a Venturimeter, the ratio of the diameter at throat to the diameter of pipe should be

A. 1/16 to 1/8

B. 1/8 to 1/4

C. 1/4 to 1/3

D. 1/3 to 1/2

Discuss this answer

At the center line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be

A. Minimum

B. Maximum

C. Zero

D. Could be any value

Discuss this answer

A flow in which the viscosity of fluid is dominating over the inertia force is called

A. Steady flow

B. Unsteady flow

C. Laminar flow

D. Turbulent flow

Discuss this answer

Manometer is used to measure

A. Pressure in pipes, channels etc.

B. Atmospheric pressure

C. Very low pressure

D. Difference of pressure between two points

Discuss this answer

The two important forces for a floating body are

A. Buoyancy, gravity

B. Buoyancy, pressure

C. Buoyancy, inertial

D. Inertial, gravity

Discuss this answer

The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called

A. Newton's law of motion

B. Newton's law of cooling

C. Newton's law of viscosity

D. Newton's law of resistance

Discuss this answer

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

Discuss this answer

A liquid would wet the solid, if adhesion forces as compared to cohesion forces are

A. Less

B. More

C. Equal

D. Less at low temperature and more at high temperature

Discuss this answer

Specific weight of sea water is more that of pure water because it contains

A. Dissolved air

B. Dissolved salt

C. Suspended matter

D. All of the above

Discuss this answer

The velocity of jet of water travelling out of opening in a tank filled with water is proportional to

A. Head of water (h)

B. h²

C. V/T

D. h/2

Discuss this answer

Accepted Answer

B. Steady non-uniform flow

A flow through an expanding tube at constant rate is called

Correct Answer :

Show all Fluid Mechanics MCQ

Related Questions

General energy equation holds for

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

Dimensions of surface tension are

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

A flow in which the volume of a fluid and its density does not change during the flow is called _________ flow.

For pipes, turbulent flow occurs when Reynolds number is

A tank of uniform cross-sectional area (A) containing liquid upto height (H1) has an orifice of cross-sectional area (a) at its bottom. The time required to bring the liquid level from H1 to H2 will be

The Newton's law of resistance is based on the assumption that the

An open vessel of water is accelerated up an inclined plane. The free water surface will

In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to height of the liquid above the vena contracta.

Mercury does not wet glass. This is due to property of liquid known as

A channel is said to be of most economical cross-section, if

The rise or depression of liquid in a tube due to surface tension will increase in size of tube will

The total energy of a liquid particle in motion is equal to

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

The hydraulic mean depth or the hydraulic radius is the ratio of

According to Bernoulli's equation

Gauge pressure at a point is equal to the absolute pressure __________ the atmospheric pressure.

Capillary action is due to the

The force per unit length is the unit of

In order to avoid tendency of separation at throat in a Venturimeter, the ratio of the diameter at throat to the diameter of pipe should be

At the center line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be

A flow in which the viscosity of fluid is dominating over the inertia force is called

Manometer is used to measure

The two important forces for a floating body are

The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called

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

A liquid would wet the solid, if adhesion forces as compared to cohesion forces are

Specific weight of sea water is more that of pure water because it contains

The velocity of jet of water travelling out of opening in a tank filled with water is proportional to

Also checkout

A flow through an expanding tube at constant rate is called

Correct Answer :

Show all Fluid Mechanics MCQ

Related Questions

General energy equation holds for

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

Dimensions of surface tension are

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

A flow in which the volume of a fluid and its density does not change during the flow is called _________ flow.

For pipes, turbulent flow occurs when Reynolds number is

A tank of uniform cross-sectional area (A) containing liquid upto height (H1) has an orifice of cross-sectional area (a) at its bottom. The time required to bring the liquid level from H1 to H2 will be

The Newton's law of resistance is based on the assumption that the

An open vessel of water is accelerated up an inclined plane. The free water surface will

In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to height of the liquid above the vena contracta.

Mercury does not wet glass. This is due to property of liquid known as

A channel is said to be of most economical cross-section, if

The rise or depression of liquid in a tube due to surface tension will increase in size of tube will

The total energy of a liquid particle in motion is equal to

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

The hydraulic mean depth or the hydraulic radius is the ratio of

According to Bernoulli's equation

Gauge pressure at a point is equal to the absolute pressure __________ the atmospheric pressure.

Capillary action is due to the

The force per unit length is the unit of

In order to avoid tendency of separation at throat in a Venturimeter, the ratio of the diameter at throat to the diameter of pipe should be

At the center line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be

A flow in which the viscosity of fluid is dominating over the inertia force is called

Manometer is used to measure

The two important forces for a floating body are

The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called

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

A liquid would wet the solid, if adhesion forces as compared to cohesion forces are

Specific weight of sea water is more that of pure water because it contains

The velocity of jet of water travelling out of opening in a tank filled with water is proportional to

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