The flow in which the velocity vector is identical in magnitude and direction at every point, for any given instant, is known as (A) One dimensional flow (B) Uniform flow (C) Steady flow (D) Turbulent flow

The flow in which the velocity vector is identical in magnitude and direction at every point, for any
given instant, is known as
(A) One dimensional flow
(B) Uniform flow
(C) Steady flow
(D) Turbulent flow
by

1 Answer

Answer :

Answer: Option B
by

Related questions

The flow in which the particles of a fluid attain such velocities that varies from point to point in magnitude and direction as well as from instant to instant, is known as (A) One dimensional flow (B) Uniform flow (C) Steady flow (D) Turbulent flow

Description : The flow in which the particles of a fluid attain such velocities that varies from point to point in magnitude and direction as well as from instant to instant, is known as (A) One dimensional flow (B) Uniform flow (C) Steady flow (D) Turbulent flow

Last Answer : Answer: Option D

The flow which neglects changes in a transverse direction is known as (A) One dimensional flow (B) Uniform flow (C) Steady flow (D) Turbulent flow

Description : The flow which neglects changes in a transverse direction is known as (A) One dimensional flow (B) Uniform flow (C) Steady flow (D) Turbulent flow

Last Answer : Answer: Option A

The flow in which conditions do not change with time at any point, is known as (A) One dimensional flow (B) Uniform flow (C) Steady flow (D) Turbulent flow

Description : The flow in which conditions do not change with time at any point, is known as (A) One dimensional flow (B) Uniform flow (C) Steady flow (D) Turbulent flow

Last Answer : Answer: Option C

True one-dimensional flow occurs when (A) The direction and magnitude of the velocity at all points are identical (B) The velocity of successive fluid particles, at any point, is the same at successive periods of time (C) The magnitude and direction of the velocity do not change from point to point in the fluid (D) The fluid particles move in plane or parallel planes and the streamline patterns are identical in each plane

Description : True one-dimensional flow occurs when (A) The direction and magnitude of the velocity at all points are identical (B) The velocity of successive fluid particles, at any point, is the same ... fluid particles move in plane or parallel planes and the streamline patterns are identical in each plane

Last Answer : Answer: Option A

Steady flow occurs when (A) The direction and magnitude of the velocity at all points are identical (B) The velocity of successive fluid particles, at any point, is the same at successive periods of time (C) The magnitude and direction of the velocity do not change from point to point in the fluid (D) The fluid particles move in plane or parallel planes and the streamline patterns are identical in each plane

Description : Steady flow occurs when (A) The direction and magnitude of the velocity at all points are identical (B) The velocity of successive fluid particles, at any point, is the same at successive ... fluid particles move in plane or parallel planes and the streamline patterns are identical in each plane

Last Answer : Answer: Option B

Uniform flow occurs when (A) The direction and magnitude of the velocity at all points are identical (B) The velocity of successive fluid particles, at any point, is the same at successive periods of time (C) The magnitude and direction of the velocity do not change from point to point in the fluid ) The fluid particles move in plane or parallel planes and the streamline patterns are identical in each pleasure

Description : Uniform flow occurs when (A) The direction and magnitude of the velocity at all points are identical (B) The velocity of successive fluid particles, at any point, is the same at ... fluid particles move in plane or parallel planes and the streamline patterns are identical in each pleasure

Last Answer : Answer: Option C

Non uniform flow occurs when (A) The direction and magnitude of the velocity at all points are identical (B) The velocity of successive fluid particles, at any point, is the same at successive periods of time (C) Velocity, depth, pressure, etc. change from point to point in the fluid flow. (D) The fluid particles move in plane or parallel planes and the streamline patterns are identical in each plane

Description : Non uniform flow occurs when (A) The direction and magnitude of the velocity at all points are identical (B) The velocity of successive fluid particles, at any point, is the same at ... The fluid particles move in plane or parallel planes and the streamline patterns are identical in each plane

Last Answer : Answer: Option C

Two dimensional flows occurs when (A) The direction and magnitude of the velocity at all points are identical (B) The velocity of successive fluid particles, at any point, is the same at successive periods of time (C) The magnitude and direction of the velocity do not change from point to point in the fluid (D) The fluid particles move in plane or parallel planes and the streamline patterns are identical in each plan

Description : Two dimensional flows occurs when (A) The direction and magnitude of the velocity at all points are identical (B) The velocity of successive fluid particles, at any point, is the same at ... fluid particles move in plane or parallel planes and the streamline patterns are identical in each plan

Last Answer : Answer: Option D

When the flow parameters at any given instant remain same at every point, then flow is said to be (A) Quasi-static (B) Steady state (C) Laminar (D) Uniform

Description : When the flow parameters at any given instant remain same at every point, then flow is said to be (A) Quasi-static (B) Steady state (C) Laminar (D) Uniform

Last Answer : Answer: Option D

In which type of fluid flow, the velocity of flow of fluid changes from point to point in the fluid at any instant? (A) Rotational (B) Unsteady (C) Turbulent (D) Non-uniform

Description : In which type of fluid flow, the velocity of flow of fluid changes from point to point in the fluid at any instant? (A) Rotational (B) Unsteady (C) Turbulent (D) Non-uniform

Last Answer : (D) Non-uniform

In one dimensional flow, the flow (A) Is steady and uniform (B) Takes place in straight line (C) Takes place in curve (D) Takes place in one direction

Description : In one dimensional flow, the flow (A) Is steady and uniform (B) Takes place in straight line (C) Takes place in curve (D) Takes place in one direction

Last Answer : Answer: Option B

The equation of continuity holds good when the flow (A) Is steady (B) Is one dimensional (C) Velocity is uniform at all the cross sections (D) All of the above

Description : The equation of continuity holds good when the flow (A) Is steady (B) Is one dimensional (C) Velocity is uniform at all the cross sections (D) All of the above

Last Answer : Answer: Option D

The flow in which each liquid particle has a definite path and their paths do not cross each other is called (A) One dimensional flow (B) Streamline flow (C) Steady flow (D) Turbulent flow

Description : The flow in which each liquid particle has a definite path and their paths do not cross each other is called (A) One dimensional flow (B) Streamline flow (C) Steady flow (D) Turbulent flow

Last Answer : Answer: Option B

One dimensional flow implies (A) Flow in a straight line (B) Steady uniform flow (C) Unsteady uniform flow (D) A flow which does not account for changes in transverse direction

Description : One dimensional flow implies (A) Flow in a straight line (B) Steady uniform flow (C) Unsteady uniform flow (D) A flow which does not account for changes in transverse direction

Last Answer : (D) A flow which does not account for changes in transverse direction

A flow in which each liquid particle has a definite path, and the paths of individual particles do not cross each other, is called (A) Steady flow (B) Uniform flow (C) Streamline flow (D) Turbulent flow

Description : A flow in which each liquid particle has a definite path, and the paths of individual particles do not cross each other, is called (A) Steady flow (B) Uniform flow (C) Streamline flow (D) Turbulent flow

Last Answer : Answer: Option C

General energy equation holds for (A) Steady flow (B) Turbulent flow (C) Laminar flow (D) Non-uniform flow

Description : General energy equation holds for (A) Steady flow (B) Turbulent flow (C) Laminar flow (D) Non-uniform flow

Last Answer : Answer: Option D

Pick out the wrong statement. (A) Surface tension of a liquid is because of the difference in magnitude of adhesive & cohesive forces(B) A hydrometer used for the determination of specific gravities of liquidsworks on the principle of buoyant forces(C) In case of unsteady fluid flow, the velocity at any given point does notchange with time(D) Turbulent fluid flow is characterised by the rapid fluctuation ofinstantaneous pressure & velocity at a poin

Description : Pick out the wrong statement. (A) Surface tension of a liquid is because of the difference in magnitude of adhesive & cohesive forces (B) A hydrometer used for the determination of ... Turbulent fluid flow is characterised by the rapid fluctuation of instantaneous pressure & velocity at a poin

Last Answer : (C) In case of unsteady fluid flow, the velocity at any given point does not change with time

A one dimensional flow is one which (A) Is uniform flow (B) Is steady uniform flow (C) Takes place in straight lines (D) Involves zero transverse component of flow

Description : A one dimensional flow is one which (A) Is uniform flow (B) Is steady uniform flow (C) Takes place in straight lines (D) Involves zero transverse component of flow

Last Answer : Answer: Option D

A stream line is (A) Fixed in space in steady flow (B) Always the path of particle (C) Drawn normal to the velocity vector at every point (D) A line connecting the mid points of flow cross-section

Description : A stream line is (A) Fixed in space in steady flow (B) Always the path of particle (C) Drawn normal to the velocity vector at every point (D) A line connecting the mid points of flow cross-section

Last Answer : (A) Fixed in space in steady flow

Bernoulli's equation for fluid flow is derived following certain assumptions. Out of the assumptions listed below, which set of assumptions is used in derivation of Bernoulli's equation? A. Fluid flow is frictionless & irrotational. B. Fluid flow is steady. C. Fluid flow is uniform & turbulent. D. Fluid is compressible. E. Fluid is incompressible. (A) A, C, D (B) B, D, E (C) A, B, E (D) A, D, E

Description : Bernoulli's equation for fluid flow is derived following certain assumptions. Out of the assumptions listed below, which set of assumptions is used in derivation of Bernoulli's equation? A. Fluid flow is frictionless & irrotational. B. Fluid flow is ... A, C, D (B) B, D, E (C) A, B, E (D) A, D, E

Last Answer : (C) A, B, E

Compare i) Steady and uniform flow ii) Laminar and turbulent flow

Description : Compare i) Steady and uniform flow ii) Laminar and turbulent flow

Last Answer : Steady flow:- The flow is said to be steady when the flow characteristics, such as velocity, pressure, density and temperature do not change with time. Water flowing through a tap at a constant rate is an ... called as turbulent flow. e.g. The flow of river at the time of flood is turbulent flow.

A streamline is (A) The line connecting the mid-points of flow cross-sections (B) Defined for uniform flow only (C) Drawn normal to the velocity vector at every point (D) Always the path of a particle

Description : A streamline is (A) The line connecting the mid-points of flow cross-sections (B) Defined for uniform flow only (C) Drawn normal to the velocity vector at every point (D) Always the path of a particle

Last Answer : (C) Drawn normal to the velocity vector at every point

One dimensional fluid flow implies the (A) Flow in straight lines only (B) Uniform flow (C) Steady uniform flow (D) Flow in which transverse components are zero

Description : One dimensional fluid flow implies the (A) Flow in straight lines only (B) Uniform flow (C) Steady uniform flow (D) Flow in which transverse components are zero

Last Answer : (D) Flow in which transverse components are zero

Steady flow occurs, when the (A) Conditions change steadily with time (B) Conditions are the same at the adjacent points at any instant (C) Conditions do not change with time at any point (D) Rate of the velocity change is constant

Description : Steady flow occurs, when the (A) Conditions change steadily with time (B) Conditions are the same at the adjacent points at any instant (C) Conditions do not change with time at any point (D) Rate of the velocity change is constant

Last Answer : (C) Conditions do not change with time at any point

When a cylindrical vessel, containing some liquid, is rotated about its vertical axis, the liquid surface is depressed down at the axis of its rotation and rises up near the walls of the vessel on all sides. This type of flow is known as (A) Steady flow (B) Turbulent flow (C) Vortex flow

Description : When a cylindrical vessel, containing some liquid, is rotated about its vertical axis, the liquid surface is depressed down at the axis of its rotation and rises up near the walls of the vessel on all sides. This type of flow is known as (A) Steady flow (B) Turbulent flow (C) Vortex flow

Last Answer : Answer: Option C

A helicopter is ascending vertically with a constant speed of 6 meters per second relative to the ground. At the instant the helicopter is 60 meters above the ground it releases a package. What is the magnitude and direction of the velocity of the package, relative to the ground, the instant the package is released by the helicopter?

Description : A helicopter is ascending vertically with a constant speed of 6 meters per second relative to the ground. At the instant the helicopter is 60 meters above the ground it releases a package. What is ... of the package, relative to the ground, the instant the package is released by the helicopter?

Last Answer : ANSWER: 6 METERS/SECOND UP

A boy is standing on an elevator which is traveling downward with a constant velocity of 30 meters per second. The boy throws a ball vertically upward with a velocity of 10 meters per second relative to the elevator. What is the velocity of the ball, MAGNITUDE AND DIRECTION, relative to the elevator shaft the instant the boy releases the ball?

Description : A boy is standing on an elevator which is traveling downward with a constant velocity of 30 meters per second. The boy throws a ball vertically upward with a velocity of 10 meters per second ... the ball, MAGNITUDE AND DIRECTION, relative to the elevator shaft the instant the boy releases the ball?

Last Answer : ANSWER: 20 METERS PER SECOND DOWN

The Euler's equation for the motion of liquids is based upon the assumption that (A) The fluid is non - viscous, homogeneous and incompressible (B) The velocity of flow is uniform over the section (C) The flow is continuous, steady and along the stream line (D) All of the above

Description : The Euler's equation for the motion of liquids is based upon the assumption that (A) The fluid is non - viscous, homogeneous and incompressible (B) The velocity of flow is uniform over the section (C) The flow is continuous, steady and along the stream line (D) All of the above

Last Answer : Answer: Option D

Pick out the wrong statement. (A) A fluid mass is free from shearing forces, when it is made to rotate with a uniform velocity(B) Newton's law of viscosity is not applicable to the turbulent flow of fluidwith linear velocity distribution(C) Laminar flow of viscous liquids is involved in the lubrication of varioustypes of bearings(D) Rise of water in capillary tubes reduces with the increasing diameter ofcapillary tubes

Description : Pick out the wrong statement. (A) A fluid mass is free from shearing forces, when it is made to rotate with a uniform velocit (B) Newton's law of viscosity is not applicable to the ... types of bearings (D) Rise of water in capillary tubes reduces with the increasing diameter of capillary tubes

Last Answer : (B) Newton's law of viscosity is not applicable to the turbulent flow of fluid with linear velocity distribution

A flow in which the quantity of liquid flowing per second is not constant, is called (A) Streamline flow (B) Turbulent flow (C) Steady flow (D) Unsteady flow

Description : A flow in which the quantity of liquid flowing per second is not constant, is called (A) Streamline flow (B) Turbulent flow (C) Steady flow (D) Unsteady flow

Last Answer : Answer: Option D

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

Description : 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

Last Answer : Answer: Option C

A flow in which the quantity of liquid flowing per second is constant, is called __________ flow. (A) Steady (B) Streamline (C) Turbulent (D) Unsteady

Description : A flow in which the quantity of liquid flowing per second is constant, is called __________ flow. (A) Steady (B) Streamline (C) Turbulent (D) Unsteady

Last Answer : Answer: Option A

A large Reynold number is indication of (A) Smooth and streamline flow (B) Laminar flow (C) Steady flow (D) Highly turbulent flow

Description : A large Reynold number is indication of (A) Smooth and streamline flow (B) Laminar flow (C) Steady flow (D) Highly turbulent flow

Last Answer : Answer: Option D

Pick out the wrong statement. (A) The form drag is dependent upon the occurrence of a wake (B) The shear stress at any given cross-section of a pipe for steady flow (either laminar or turbulent) varies linearly as the radial distance (C) An ideal fluid is the one, which has negligible surface tension and obeys the Newton's law of viscosity (D) Existence of the boundary layer in fluid flow is because of viscosity of the fluid

Description : Pick out the wrong statement. (A) The form drag is dependent upon the occurrence of a wake (B) The shear stress at any given cross-section of a pipe for steady flow (either laminar or turbulent ... of viscosity (D) Existence of the boundary layer in fluid flow is because of viscosity of the fluid

Last Answer : (C) An ideal fluid is the one, which has negligible surface tension and obeys the Newton's law of viscosity

Steady state one dimensional heat flow by conduction as given by Fourier's low does not assume that (A) There is no internal heat generation (B) Boundary surfaces are isothermal (C) Material is anisotropic (D) Constant temperature gradient exists

Description : Steady state one dimensional heat flow by conduction as given by Fourier's low does not assume that (A) There is no internal heat generation (B) Boundary surfaces are isothermal (C) Material is anisotropic (D) Constant temperature gradient exists

Last Answer : (C) Material is anisotropic

11. The velocity at which the turbulent flow starts is known as higher critical velocity. A) Yes B) No

Description : 11. The velocity at which the turbulent flow starts is known as higher critical velocity. A) Yes B) No

Last Answer : A

Which of the following statement is wrong? (A) A flow whose streamline is represented by a curve is called two dimensional flow. (B) The total energy of a liquid particle is the sum of potential energy, kinetic energy and pressure energy. (C) The length of divergent portion in a Venturimeter is equal to the convergent portion. (D) A pitot tube is used to measure the velocity of flow at the required point in a pipe.

Description : Which of the following statement is wrong? (A) A flow whose streamline is represented by a curve is called two dimensional flow. (B) The total energy of a liquid particle is the sum of potential energy, ... (D) A pitot tube is used to measure the velocity of flow at the required point in a pipe.

Last Answer : Answer: Option C

f = 16/NRe , is valid for (A) Turbulent flow (B) Laminar flow through an open channel(C) Steady flow(D) None of these

Description : f = 16/NRe , is valid for (A) Turbulent flow (B) Laminar flow through an open channel (C) Steady flow (D) None of these

Last Answer : (D) None of these

Potential function is applicable only for __________ flow. (A) Irrotational (B) Turbulent (C) Steady (D) None of these

Description : Potential function is applicable only for __________ flow. (A) Irrotational (B) Turbulent (C) Steady (D) None of these

Last Answer : (A) Irrotational

The flow of water through the hole in the bottom of a wash basin is an example of (A) Steady flow (B) Uniform flow (C) Free vortex (D) Forced vortex

Description : The flow of water through the hole in the bottom of a wash basin is an example of (A) Steady flow (B) Uniform flow (C) Free vortex (D) Forced vortex

Last Answer : Answer: Option C

Uniform flow occurs when (A) The flow is steady (B) The flow is streamline (C) Size and shape of the cross section in a particular length remain constant (D) Size and cross section change uniformly along length

Description : Uniform flow occurs when (A) The flow is steady (B) The flow is streamline (C) Size and shape of the cross section in a particular length remain constant (D) Size and cross section change uniformly along length

Last Answer : Answer: Option C

Normal depth in open channel flow is the depth of flow corresponding to (A) Steady flow (B) Unsteady flow (C) Laminar flow (D) Uniform flow

Description : Normal depth in open channel flow is the depth of flow corresponding to (A) Steady flow (B) Unsteady flow (C) Laminar flow (D) Uniform flow

Last Answer : Answer: Option D

When the flow in an open channel is gradually varied, the flow is said to be (A) Steady uniform flow (B) Steady non-uniform flow (C) Unsteady uniform flow (D) Unsteady non-uniform flow

Description : When the flow in an open channel is gradually varied, the flow is said to be (A) Steady uniform flow (B) Steady non-uniform flow (C) Unsteady uniform flow (D) Unsteady non-uniform flow

Last Answer : Answer: Option B

During the opening of a valve in a pipe line, the flow is (A) Steady (B) Unsteady (C) Uniform (D) Laminar

Description : During the opening of a valve in a pipe line, the flow is (A) Steady (B) Unsteady (C) Uniform (D) Laminar

Last Answer : Answer: Option B

A flow through a long pipe at decreasing rate is called __________ uniform flow. (A) Steady (B) Unsteady (C) Both A and B (D) None of these

Description : A flow through a long pipe at decreasing rate is called __________ uniform flow. (A) Steady (B) Unsteady (C) Both A and B (D) None of these

Last Answer : Answer: Option B

A flow through a long pipe at constant rate is called (A) Steady uniform flow (B) Steady non-uniform flow (C) Unsteady uniform flow (D) Unsteady non-uniform flow

Description : A flow through a long pipe at constant rate is called (A) Steady uniform flow (B) Steady non-uniform flow (C) Unsteady uniform flow (D) Unsteady non-uniform flow

Last Answer : Answer: Option A

Gradually varied flow is (A) Steady uniform (B) Non-steady non-uniform (C) Non-steady uniform (D) Steady non-uniform

Description : Gradually varied flow is (A) Steady uniform (B) Non-steady non-uniform (C) Non-steady uniform (D) Steady non-uniform

Last Answer : Answer: Option D

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

Description : 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

Last Answer : Answer: Option B

The velocity at which the flow changes from laminar flow to turbulent flow is called (A) Critical velocity (B) Velocity of approach (C) Sub-sonic velocity (D) Super-sonic velocity

Description : The velocity at which the flow changes from laminar flow to turbulent flow is called (A) Critical velocity (B) Velocity of approach (C) Sub-sonic velocity (D) Super-sonic velocity

Last Answer : Answer: Option A

. In case of turbulent flow of fluid through a circular pipe, the (A) Mean flow velocity is about 0.5 times the maximum velocity (B) Velocity profile becomes flatter and flatter with increasing Reynolds number (C) Point of maximum instability exists at a distance of 2r/3 from the pipe wall (r = pipe radius) (D) Skin friction drag, shear stresses, random orientation of fluid particles and slope of velocity profile at the wall are more

Description : . In case of turbulent flow of fluid through a circular pipe, the (A) Mean flow velocity is about 0.5 times the maximum velocity (B) Velocity profile becomes flatter and flatter with ... , shear stresses, random orientation of fluid particles and slope of velocity profile at the wall are more

Last Answer : (D) Skin friction drag, shear stresses, random orientation of fluid particles and slope of velocity profile at the wall are more