The line of action of the buoyant force passes through the centre of gravity of the (A) Submerged body (B) Displaced volume of the fluid (C) Volume of fluid vertically above the body (D) Horizontal projection of the body

The line of action of the buoyant force passes through the centre of
gravity of the
(A) Submerged body
(B) Displaced volume of the fluid
(C) Volume of fluid vertically above the body
(D) Horizontal projection of the body
by

1 Answer

Answer :

(B) Displaced volume of the fluid
by

Related questions

The line of action of the buoyant force acts through the (A) Centroid of the volume of fluid vertically above the body (B) Centre of the volume of floating body (C) Center of gravity of any submerged body (D) Centroid of the displaced volume of fluid

Description : The line of action of the buoyant force acts through the (A) Centroid of the volume of fluid vertically above the body (B) Centre of the volume of floating body (C) Center of gravity of any submerged body (D) Centroid of the displaced volume of fluid

Last Answer : Answer: Option D

The line of action of the buoyant force acts through the (A) Centroid of the displaced volume of fluid (B) Centre of gravity of a submerged body (C) Centroid of the volume of any floating body (D) None of these

Description : The line of action of the buoyant force acts through the (A) Centroid of the displaced volume of fluid (B) Centre of gravity of a submerged body (C) Centroid of the volume of any floating body (D) None of these

Last Answer : (A) Centroid of the displaced volume of fluid

The line of action of the buoyant force acts through the Centroid of the (A) Submerged body (B) Volume of the floating body (C) Volume of the fluid vertically above the body (D) Displaced volume of the fluid

Description : The line of action of the buoyant force acts through the Centroid of the (A) Submerged body (B) Volume of the floating body (C) Volume of the fluid vertically above the body (D) Displaced volume of the fluid

Last Answer : Answer: Option D

Buoyant force is (A) The resultant force acting on a floating body (B) The resultant force on a body due to the fluid surrounding it (C) Equal to the volume of liquid displaced (D) The force necessary to maintain equilibrium of a submerged body

Description : Buoyant force is (A) The resultant force acting on a floating body (B) The resultant force on a body due to the fluid surrounding it (C) Equal to the volume of liquid displaced (D) The force necessary to maintain equilibrium of a submerged body

Last Answer : Answer: Option B

Buoyant force is (A) Resultant force acting on a floating body (B) Equal to the volume of liquid displaced (C) Force necessary to keep a body in equilibrium (D) The resultant force on a body due to the fluid surrounding it

Description : Buoyant force is (A) Resultant force acting on a floating body (B) Equal to the volume of liquid displaced (C) Force necessary to keep a body in equilibrium (D) The resultant force on a body due to the fluid surrounding it

Last Answer : Answer: Option D

07. The line of action of the force of buoyancy acts through the centre of gravity of the volume of the liquid displaced. A) True B) False

Description : 07. The line of action of the force of buoyancy acts through the centre of gravity of the volume of the liquid displaced. A) True B) False

Last Answer : A

Choose the wrong statement (A) Any weight, floating or immersed in a liquid, is acted upon by a buoyant force (B) Buoyant force is equal to the weight of the liquid displaced (C) The point through which buoyant force acts, is called the center of buoyancy (D) Center of buoyancy is located above the center of gravity of the displaced liquid

Description : Choose the wrong statement (A) Any weight, floating or immersed in a liquid, is acted upon by a buoyant force (B) Buoyant force is equal to the weight of the liquid displaced (C) The ... the center of buoyancy (D) Center of buoyancy is located above the center of gravity of the displaced liquid

Last Answer : Answer: Option D

0 Pick up the correct statement from the following: (A) The point through which the resultant of the shear stresses passes is known as shear centre(B) In the standard rolled channels, the shear centre is on the horizontal line passing through and away from the C.G. beyond web (C) In equal angles, the shear centre is on the horizontal plane and away from the C.G., outside of the leg projection (D) All the above

Description : 0 Pick up the correct statement from the following: (A) The point through which the resultant of the shear stresses passes is known as shear centre (B) In the standard rolled channels, the shear centre ... horizontal plane and away from the C.G., outside of the leg projection (D) All the above

Last Answer : (D) All the above

Choose the wrong statement (A) The horizontal component of the hydrostatic force on any surface is equal to the normal force on the vertical projection of the surface (B) The horizontal component acts through the center of pressure for the vertical projection (C) The vertical component of the hydrostatic force on any surface is equal to the weight of the volume of the liquid above the area (D) The vertical component passes through the center of pressure of the volume

Description : Choose the wrong statement (A) The horizontal component of the hydrostatic force on any surface is equal to the normal force on the vertical projection of the surface (B) The horizontal component ... above the area (D) The vertical component passes through the center of pressure of the volume

Last Answer : Answer: Option D

The buoyant force acting on a floating body is dependent on the (A) Viscosity of the liquid (B) Weight of the liquid displaced (C) Depth of immersion of the body (D) Surface tension of the liquid

Description : The buoyant force acting on a floating body is dependent on the (A) Viscosity of the liquid (B) Weight of the liquid displaced (C) Depth of immersion of the body (D) Surface tension of the liquid

Last Answer : (B) Weight of the liquid displaced

Choose the wrong statement (A) The center of buoyancy is located at the center of gravity of the displaced liquid (B) For stability of a submerged body, the center of gravity of body must lie directly below the center of buoyancy (C) If C.G. and center of buoyancy coincide, the submerged body must lie at neutral equilibrium for all positions (D) All floating bodies are stable

Description : Choose the wrong statement (A) The center of buoyancy is located at the center of gravity of the displaced liquid (B) For stability of a submerged body, the center of gravity of body must ... the submerged body must lie at neutral equilibrium for all positions (D) All floating bodies are stable

Last Answer : Answer: Option D

A spring with a force constant of 20 newtons per meter is known to obey Hooke's Law. The spring is attached to a mass of 5 kilograms and placed on a horizontal, frictionless surface. The mass is displaced 3 meters from its equilibrium position and released. What is the kinetic energy of the mass as it passes through its equilibrium position?

Description : A spring with a force constant of 20 newtons per meter is known to obey Hooke's Law. The spring is attached to a mass of 5 kilograms and placed on a horizontal, frictionless surface. The ... and released. What is the kinetic energy of the mass as it passes through its equilibrium position? 

Last Answer : ANSWER: 90 JOULES

Volume of liquid displaced by a floating body is equivalent to its (A) Own weight (B) Submerged weight (C) Own volume (D) Submerged volume

Description : Volume of liquid displaced by a floating body is equivalent to its (A) Own weight (B) Submerged weight (C) Own volume (D) Submerged volume

Last Answer : (A) Own weight

The centre of gravity of the volume of the liquid displaced by an immersed body is called (A) Centre of gravity (B) Centre of pressure (C) Metacentre (D) Centre of buoyancy

Description : The centre of gravity of the volume of the liquid displaced by an immersed body is called (A) Centre of gravity (B) Centre of pressure (C) Metacentre (D) Centre of buoyancy

Last Answer : Answer: Option D

The depth of centre of pressure (h) for a vertically immersed surface from the liquid surface is given by (where IG = Moment of inertia of the immersed surface about horizontal axis through its centre of gravity, A = Area of immersed surface, and x = Depth of centre of gravity of the immersed surface from the liquid surface) (A) (IG/ ) - (B) (IG/ ) - (C) ( /IG) + (D) (IG/ ) +

Description : The depth of centre of pressure (h) for a vertically immersed surface from the liquid surface is given by (where IG = Moment of inertia of the immersed surface about horizontal axis through its centre of gravity, A = Area of immersed surface, ... (IG/ ) - (B) (IG/ ) - (C) ( /IG) + (D) (IG/ ) +

Last Answer : Answer: Option D

An odd shaped body weighing 7.5 kg and occupying 0.01 m3 volume will be completely submerged in a fluid having specific gravity of (A) 1 (B) 1.2 (C) 0.8 (D) 0.75

Description : An odd shaped body weighing 7.5 kg and occupying 0.01 m3 volume will be completely submerged in a fluid having specific gravity of (A) 1 (B) 1.2 (C) 0.8 (D) 0.75

Last Answer : Answer: Option D

The centre of pressure is (A) Always below the centroid of the area (B) Always above the centroid of the area (C) A point on the line of action of the resultant force (D) At the centroid of the submerged area

Description : The centre of pressure is (A) Always below the centroid of the area (B) Always above the centroid of the area (C) A point on the line of action of the resultant force (D) At the centroid of the submerged area

Last Answer : (C) A point on the line of action of the resultant force

__________ forces act on a particle moving through a stationary fluid(A) Gravity(B) Drag(C) Buoyant(D) All (A), (B), & (C)

Description : __________ forces act on a particle moving through a stationary fluid (A) Gravity (B) Drag (C) Buoyant (D) All (A), (B), & (C)

Last Answer : (D) All (A), (B), & (C)

A floating/submerged body is always stable, if its centre of gravity (A) Lies above its centre of buoyancy (B) And centre of buoyancy coincide (C) Lies below its centre of buoyancy (D) Lies above its metacentre

Description : A floating/submerged body is always stable, if its centre of gravity (A) Lies above its centre of buoyancy (B) And centre of buoyancy coincide (C) Lies below its centre of buoyancy (D) Lies above its metacentre

Last Answer : (C) Lies below its centre of buoyancy

A man carrying a load on his back bends forward because of one of the following reasons: (a) To adjust the centre of gravity of the system such that the vertical line through the centre of gravity passes within the base (b) The man feels lighter because of greater reaction (c) To prevent the load from slipping over and falling down (d) To keep the centre of gravity of the system outside the body

Description : A man carrying a load on his back bends forward because of one of the following reasons: (a) To adjust the centre of gravity of the system such that the vertical line through the centre of gravity ... slipping over and falling down (d) To keep the centre of gravity of the system outside the body

Last Answer : Ans:(a)

A rigid body is suspended vertically at a point and oscillates with a small amplitude under the action of the force of gravity. Such an arrangement is called a.Simple pendulum b.Rigid pendulum c.Second's pendulum d.Compound pendulum e.Newton's pendulum

Description : A rigid body is suspended vertically at a point and oscillates with a small amplitude under the action of the force of gravity. Such an arrangement is called a.Simple pendulum b.Rigid pendulum c.Second's pendulum d.Compound pendulum e.Newton's pendulum

Last Answer : d. Compound pendulum

When a rigid body is suspended vertically and it oscillates with a small amplitude under the action of the force of gravity, the body is known as * 1 point (A) simple pendulum (B) torsional pendulum (C) compound pendulum (D) second’s pendulum

Description : When a rigid body is suspended vertically and it oscillates with a small amplitude under the action of the force of gravity, the body is known as * 1 point (A) simple pendulum (B) torsional pendulum (C) compound pendulum (D) second’s pendulum

Last Answer : (C) compound pendulum

When a rigid body is suspended vertically and it oscillates with a small amplitude under the action of the force of gravity, the body is known as A. simple pendulum B. torsional pendulum C. compound pendulum D. second’s pendulum

Description : When a rigid body is suspended vertically and it oscillates with a small amplitude under the action of the force of gravity, the body is known as A. simple pendulum B. torsional pendulum C. compound pendulum D. second’s pendulum

Last Answer : C. compound pendulum

When a rigid body is suspended vertically and it oscillates with a small amplitude under the action of the force of gravity, the body is known as (A) simple pendulum B) torsional pendulum (C) compound pendulum (D) second’s pendulum

Description : When a rigid body is suspended vertically and it oscillates with a small amplitude under the action of the force of gravity, the body is known as (A) simple pendulum B) torsional pendulum (C) compound pendulum (D) second’s pendulum

Last Answer : (C) compound pendulum

A submerged body is said to be in a stable equilibrium, if its centre of gravity __________ the centre of buoyancy. (A) Coincides with (B) Lies below (C) Lies above (D) None of these

Description : A submerged body is said to be in a stable equilibrium, if its centre of gravity __________ the centre of buoyancy. (A) Coincides with (B) Lies below (C) Lies above (D) None of these

Last Answer : Answer: Option B

In a tug of war, five men pull a rope to the left at A and six moen pull the rope at B. A weight of 5 kg is hung vertically from the centre of the rope. In order that the rope AB be horizontal a.the force applied on A must be equal to that on B b.at least one man on side B should be removed c.infinite force will be required to be applied at both ends d.the force required on A must not be equal to that on B e.107 dynes

Description : In a tug of war, five men pull a rope to the left at A and six moen pull the rope at B. A weight of 5 kg is hung vertically from the centre of the rope. In order that the rope AB be horizontal ... to be applied at both ends d.the force required on A must not be equal to that on B e.107 dynes

Last Answer : c. infinite force will be required to be applied at both ends

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

Description : 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

Last Answer : Answer: Option C

Metacentre is the point of intersection of (A) Vertical upward force through e.g. of body and center line of body (B) Buoyant force and the center line of body (C) Midpoint between e.g. and center of buoyancy (D) All of the above

Description : Metacentre is the point of intersection of (A) Vertical upward force through e.g. of body and center line of body (B) Buoyant force and the center line of body (C) Midpoint between e.g. and center of buoyancy (D) All of the above

Last Answer : Answer: Option B

A tight-rope walker carries a long pole which he holds across his body. The purpose of this pole is to------? A. Prop him up if he falls B. Spread out his weight and reduce the pressure on the rope C. Add extra weight to keep the rope tightly stretched D. To keep the centre of gravity always vertically above the rope (Answer)

Description : A tight-rope walker carries a long pole which he holds across his body. The purpose of this pole is to------? A. Prop him up if he falls B. Spread out his weight and reduce the ... to keep the rope tightly stretched D. To keep the centre of gravity always vertically above the rope (Answer)

Last Answer : D. To keep the centre of gravity always vertically above the rope (Answer)

The horizontal component of buoyant force is (A) Negligible (B) Same as buoyant force (C) Zero (D) None of the above

Description : The horizontal component of buoyant force is (A) Negligible (B) Same as buoyant force (C) Zero (D) None of the above

Last Answer : Answer: Option C

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

Description : 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

Last Answer : Answer: Option D

Archimedes principle states that  a. when a body is inversed in a fluid, the fluid exerts a downward force on the body whose magnitude is equal to the weight of the displaced fluid  b. when a body is inversed in a fluid, the fluid exerts a upward force on the body whose magnitude is equal to the weight of the displaced fluid.  c. when a body is inversed in a fluid, the fluid exerts a downward force on the body whose magnitude is greater than the weight of the displaced fluid.  d. when a body is inversed in a fluid, the fluid exerts a downward force on the body whose magnitude is lower than the weight of the displaced fluid.

Description : Archimedes principle states that  a. when a body is inversed in a fluid, the fluid exerts a downward force on the body whose magnitude is equal to the weight of the displaced fluid  b. ... fluid exerts a downward force on the body whose magnitude is lower than the weight of the displaced fluid.

Last Answer : when a body is inversed in a fluid, the fluid exerts a upward force on the body whose magnitude is equal to the weight of the displaced fluid.

A hydrogen filled balloon rises in air because (a) The atmospheric pressure decreases with altitude (b) The acceleration due to gravity decreases with altitude (c) The density of air decreases with altitude (d) The buoyant force exerted by the air on the balloon is greater than the weight of the balloon

Description : A hydrogen filled balloon rises in air because (a) The atmospheric pressure decreases with altitude (b) The acceleration due to gravity decreases with altitude (c) The density of air decreases with ... The buoyant force exerted by the air on the balloon is greater than the weight of the balloon

Last Answer : Ans:(d)

If the length of a combined footing for two columns l metres apart is L and the projection on the left side of the exterior column is x, then the projection y on the right side of the exterior column, in order to have a uniformly distributed load, is (where is the distance of centre of gravity of column loads). (A) y = L - (l - ) (B) y = L/2 + (l - ) (C) y = L/2 - (l + ) (D) y = L/2 - (l - )

Description : If the length of a combined footing for two columns l metres apart is L and the projection on the left side of the exterior column is x, then the projection y on the right side of the exterior column, in order to have a uniformly distributed ... l - ) (C) y = L/2 - (l + ) (D) y = L/2 - (l - )

Last Answer : Answer: Option D

Centre of pressure of a plane surface of arbitrary shape immersed vertically in a static mass of fluid(A) Lies above the centroid of the plane surface(B) Is independent of the specific weight of the fluid(C) Is different for different fluids(D) Is at the centroid of the plane surface

Description : Centre of pressure of a plane surface of arbitrary shape immersed vertically in a static mass of fluid (A) Lies above the centroid of the plane surface (B) Is independent of the specific weight of the fluid (C) Is different for different fluids (D) Is at the centroid of the plane surface

Last Answer : (B) Is independent of the specific weight of the fluid

In a perfect prismatic compass (A) Magnetic axis and geometric axis of the needle coincide (B) Ends of the needle and pivot are in same vertical and horizontal planes (C) Pivot is vertically over the centre of the graduated circle (D) All the above

Description : In a perfect prismatic compass (A) Magnetic axis and geometric axis of the needle coincide (B) Ends of the needle and pivot are in same vertical and horizontal planes (C) Pivot is vertically over the centre of the graduated circle (D) All the above

Last Answer : (D) All the above

Center of buoyancy is the (A) Centroid of the displaced volume of fluid (B) Center of pressure of displaced volume (C) Does not exist (D) None of the above

Description : Center of buoyancy is the (A) Centroid of the displaced volume of fluid (B) Center of pressure of displaced volume (C) Does not exist (D) None of the above

Last Answer : Answer: Option A

If a object weighing 50 n displaces a volume of water weighing 10 n what is the buoyant force on the object?

Description : If a object weighing 50 n displaces a volume of water weighing 10 n what is the buoyant force on the object?

Last Answer : Need answer

For a stable equilibrium of a submerged body (where, G and B are centres of gravity & buoyancy respectively). (A) G is above B (B) B is above G (C) B & G coincide (D) None of these

Description : For a stable equilibrium of a submerged body (where, G and B are centres of gravity & buoyancy respectively). (A) G is above B (B) B is above G (C) B & G coincide (D) None of these

Last Answer : (B) B is above G

Buoyant force (A) For non-symmetrical bodies is not vertical (B) Depends on the depth of the submergence of the floating body (C) Depends on the weight of the floating body (D) None of these

Description : Buoyant force (A) For non-symmetrical bodies is not vertical (B) Depends on the depth of the submergence of the floating body (C) Depends on the weight of the floating body (D) None of these

Last Answer : (C) Depends on the weight of the floating body

Pick out the wrong statement. (A) Fluid movement under the influence of buoyant forces resulting from change in density takes place in case of natural convection (B) The ratio NNu /NRe . Npr is called the Stanton number (C) The Peclet number is a measure of the ratio of energy transport by convection to that by conduction (D) The Colburn jH factor for heat transfer is given by Nst Npr

Description : Pick out the wrong statement. (A) Fluid movement under the influence of buoyant forces resulting from change in density takes place in case of natural convection (B) The ratio NNu /NRe . Npr is ... convection to that by conduction (D) The Colburn jH factor for heat transfer is given by Nst Npr

Last Answer : (D) The Colburn jH factor for heat transfer is given by Nst Npr

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

Forces acting on a particle settling in fluid are __________ forces. (A) Gravitational & buoyant (B) Centrifugal & drag (C) Gravitational or centrifugal buoyant drag (D) External, drag & viscous

Description : Forces acting on a particle settling in fluid are __________ forces. (A) Gravitational & buoyant (B) Centrifugal & drag (C) Gravitational or centrifugal buoyant drag (D) External, drag & viscous

Last Answer : (C) Gravitational or centrifugal buoyant drag

The resultant upward pressure of a fluid on a floating body is equal to the weight of the fluid displaced by the body. This definition is according to (A) Buoyancy (B) Equilibrium of a floating body (C) Archimedes' principle (D) Bernoulli's theorem

Description : The resultant upward pressure of a fluid on a floating body is equal to the weight of the fluid displaced by the body. This definition is according to (A) Buoyancy (B) Equilibrium of a floating body (C) Archimedes' principle (D) Bernoulli's theorem

Last Answer : Answer: Option C

Which principle states that when a body is partially or totally immersed in a fluid, it experiences an upward thrust equal to the weight of the fluid displaced by it?

Description : Which principle states that when a body is partially or totally immersed in a fluid, it experiences an upward thrust equal to the weight of the fluid displaced by it?

Last Answer : Archimedes

The resultant upward pressure of the fluid on an immersed body due to its tendency to uplift the submerged body is called (A) Up-thrust (B) Reaction (C) Buoyancy (D) Metacentre

Description : The resultant upward pressure of the fluid on an immersed body due to its tendency to uplift the submerged body is called (A) Up-thrust (B) Reaction (C) Buoyancy (D) Metacentre

Last Answer : Answer: Option C

Pick out the correct statement. (A) Human blood is a Newtonian fluid (B) A Newtonian fluid obeys Newton's law of cooling (C) For a non-Newtonian fluid, a straight line passes through the origin in a plot between shear stress and shear gradien

Description : Pick out the correct statement. (A) Human blood is a Newtonian fluid (B) A Newtonian fluid obeys Newton's law of cooling (C) For a non-Newtonian fluid, a straight line passes through the origin in a plot between shear stress and shear gradien

Last Answer : (B) A Newtonian fluid obeys Newton's law of cooling

When horizontal range of a projectile equal to the distance through which projectile will rise, then the angle of projection of the particle will be equal to a.36? b.24? c.48? d.107 dynes e.76?

Description : When horizontal range of a projectile equal to the distance through which projectile will rise, then the angle of projection of the particle will be equal to a.36? b.24? c.48? d.107 dynes e.76?

Last Answer : e. 76?

In case of laminar flow of fluid through a circular pipe, the (A) Shear stress over the cross-section is proportional to the distance from the surface of the pipe (B) Surface of velocity distribution is a paraboloid of revolution, whose volume equals half the volume of circumscribing cylinder (C) Velocity profile varies hyperbolically and the shear stress remains constant over the cross-section (D) Average flow occurs at a radial distance of 0.5 r from the centre of the pipe (r = pipe radius)

Description : In case of laminar flow of fluid through a circular pipe, the (A) Shear stress over the cross-section is proportional to the distance from the surface of the pipe (B) Surface of velocity distribution is a ... occurs at a radial distance of 0.5 r from the centre of the pipe (r = pipe radius)

Last Answer : (B) Surface of velocity distribution is a paraboloid of revolution, whose volume equals half the volume of circumscribing cylinder