The time of oscillation of a floating body is (A) Longer, if Metacentric height is increased (B) Independent of the Metacentric height (C) Dependent on the buoyant forces only (D) None of these

The time of oscillation of a floating body is
(A) Longer, if Metacentric height is increased
(B) Independent of the Metacentric height
(C) Dependent on the buoyant forces only
(D) None of these
by

1 Answer

Answer :

(D) None of these
by

Related questions

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

The time oscillation of a floating body with increase in meatcentric height will be (A) Same (B) Higher (C) Lower (D) Lower/higher depending on weight of body

Description : The time oscillation of a floating body with increase in meatcentric height will be (A) Same (B) Higher (C) Lower (D) Lower/higher depending on weight of body

Last Answer : Answer: Option C

Due to energy dissipation by viscous forces in air, if simple harmonic variations of a pendulum die away after some time, then oscillation is said to be: A. undamped B. free C. damped D. dependent

Description : Due to energy dissipation by viscous forces in air, if simple harmonic variations of a pendulum die away after some time, then oscillation is said to be: A. undamped B. free C. damped D. dependent

Last Answer : damped

The Metacentric heights of two floating bodies A and B are 1 m and 1.5 m respectively. Select the correct statement. (A) The bodies A and B have equal stability (B) The body A is more stable than body B (C) The body B is more stable than body A (D) The bodies A and B are unstable

Description : The Metacentric heights of two floating bodies A and B are 1 m and 1.5 m respectively. Select the correct statement. (A) The bodies A and B have equal stability (B) The body A is more stable than body B (C) The body B is more stable than body A (D) The bodies A and B are unstable

Last Answer : Answer: Option C

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

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 (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

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

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

Metacentric height is given as the distance between (A) The center of gravity of the body and the metacentre (B) The center of gravity of the body and the center of buoyancy (C) The center of gravity of the body and the center of pressure (D) Center of buoyancy and metacentre

Description : Metacentric height is given as the distance between (A) The center of gravity of the body and the metacentre (B) The center of gravity of the body and the center of buoyancy (C) The center of gravity of the body and the center of pressure (D) Center of buoyancy and metacentre

Last Answer : Answer: Option 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

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

The distance between metacentre and __________ is called metacentric height. (A) Water surface (B) Centre of gravity(C) Centre of buoyancy(D) None of these

Description : The distance between metacentre and __________ is called metacentric height. (A) Water surface (B) Centre of gravity (C) Centre of buoyancy (D) None of these

Last Answer : (B) Centre of gravity

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

__________ 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)

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

Metacentric height is the distance between the metacentre and (A) Water surface(B) Center of pressure (C) Center of gravity (D) Center of buoyancy

Description : Metacentric height is the distance between the metacentre and (A) Water surface (B) Center of pressure (C) Center of gravity (D) Center of buoyancy

Last Answer : Answer: Option C

Which of the following statements about delivery-dependent oxygen consumption are true? A. Below the critical oxygen delivery (D(overdot)O 2crit), one would expect to see a decrease in the lactate-pyruvate ratio. B. D(overdot)O 2crit may be increased in patients with sepsis. C. A desirable goal in the treatment of shock is to achieve delivery-independent oxygen consumption. D. The oxygen extraction ratio remains constant as long as oxygen delivery remains above D(overdot)O 2crit.

Description : Which of the following statements about delivery-dependent oxygen consumption are true? A. Below the critical oxygen delivery (D(overdot)O 2crit), one would expect to see a decrease in the ... oxygen extraction ratio remains constant as long as oxygen delivery remains above D(overdot)O 2crit.

Last Answer : Answer: BC DISCUSSION: Oxygen consumption is said to be delivery dependent below a critical point, D(overdot)O 2crit, at which anaerobic metabolism supervenes. Above this point, oxygen ... the therapeutic benefit of trying to achieve supranormal oxygen delivery has not been firmly established

The period of oscillation of a particle undergoing simple harmonic motion is: w) independent of the amplitude of the motion x) directly proportional to the frequency of oscillation y) independent of the frequency of oscillation z) none of the above

Description : The period of oscillation of a particle undergoing simple harmonic motion is: w) independent of the amplitude of the motion x) directly proportional to the frequency of oscillation y) independent of the frequency of oscillation z) none of the above

Last Answer : ANSWER: W -- INDEPENDENT OF THE AMPLITUDE OF THE MOTION 

The two important forces for a floating body are (A) Buoyancy, gravity(B) Buoyancy, pressure (C) Buoyancy, inertial (D) Inertial, gravity

Description : The two important forces for a floating body are (A) Buoyancy, gravity (B) Buoyancy, pressure (C) Buoyancy, inertial (D) Inertial, gravity

Last Answer : Answer: Option A

If the length of a simple pendulum is halved then its period of oscillation is - (1) doubled (2) halved (3) increased by a factor √ 2 (4) decreased by a factor √ 2

Description : If the length of a simple pendulum is halved then its period of oscillation is - (1) doubled (2) halved (3) increased by a factor √ 2 (4) decreased by a factor √ 2

Last Answer : (4) decreased by a factor √ 2

Which of the following is associated with a La Niña event? (a) The Southern Oscillation Index (SOI) is strongly negative. (b) The ocean surface off the coast of South America is warmer than usual. (c) There is an increased chance of above average rainfall in eastern Australia. (d) All of the above.

Description : Which of the following is associated with a La Niña event? (a) The Southern Oscillation Index (SOI) is strongly negative. (b) The ocean surface off the coast of South America is warmer than usual. (c) There is an increased chance of above average rainfall in eastern Australia. (d) All of the above.

Last Answer : (c) There is an increased chance of above average rainfall in eastern Australia.

If the length of a simple pendulum is halved then its period of oscillation is (1) doubled (2) halved (3) increased by a factor 2 (4) decreased by a factor 2

Description : If the length of a simple pendulum is halved then its period of oscillation is (1) doubled (2) halved (3) increased by a factor root 2 (4) decreased by a factor root  2

Last Answer : decreased by a factor root 2

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

Description : 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

Last Answer : (B) Displaced volume of the fluid

Unsteady state heat conduction occurs, when (A) Temperature distribution is independent of time (B) Temperature distribution is dependent on time (C) Heat flows in one direction only (D) Three dimensional heat flow is concerned

Description : Unsteady state heat conduction occurs, when (A) Temperature distribution is independent of time (B) Temperature distribution is dependent on time (C) Heat flows in one direction only (D) Three dimensional heat flow is concerned

Last Answer : (B) Temperature distribution is dependent on time

The meatcentric height is the distance between the (A) Centre of gravity of the floating body and the centre of buoyancy (B) Centre of gravity of the floating body and the metacentre (C) Metacentre and centre of buoyancy (D) Original centre of buoyancy and new centre of buoyancy

Description : The meatcentric height is the distance between the (A) Centre of gravity of the floating body and the centre of buoyancy (B) Centre of gravity of the floating body and the metacentre (C) Metacentre and centre of buoyancy (D) Original centre of buoyancy and new centre of buoyancy

Last Answer : Answer: Option B

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

Most fish do not sink in water because of the presence of (1) air sinuses (2) buoyant scales on the body (3) swim bladder (4) swimmerets

Description : Most fish do not sink in water because of the presence of (1) air sinuses (2) buoyant scales on the body (3) swim bladder (4) swimmerets

Last Answer : swim bladder

What are the two forces acting on a hot air ballon that is floating?

Description : What are the two forces acting on a hot air ballon that is floating?

Last Answer : What is the answer ?

When the exchange rate is determined by the market forces of demand and supply, it is known as : a) Real exchange rate b) Nominal exchange rate c) Superfluous exchange rate d) Floating exchange rate

Description : When the exchange rate is determined by the market forces of demand and supply, it is known as : a) Real exchange rate b) Nominal exchange rate c) Superfluous exchange rate d) Floating exchange rate

Last Answer : d) Floating exchange rate

When the exchange rate is determined by the market forces of demand and supply, it is known as : a) Real exchange rate b) Nominal exchange rate c) Superfluous exchange rate d) Floating exchange rate

Description : When the exchange rate is determined by the market forces of demand and supply, it is known as : a) Real exchange rate b) Nominal exchange rate c) Superfluous exchange rate d) Floating exchange rate

Last Answer : a) Real exchange rate

What is the feature of a metacentric chromosome? -Biology

Description : What is the feature of a metacentric chromosome? -Biology

Last Answer : answer:

What is Metacentric ?

Description : What is Metacentric ?

Last Answer : : The chromosomes whose centromeres are located in the very center are called mesenteric or metasentric chromosomes. They are shaped like the English letter V.

Arm ratio in metacentric condition is :-

Description : Arm ratio in metacentric condition is :-

Last Answer : Arm ratio in metacentric condition is :- A. `1 : 1` B. `1 : 2` C. `1 : 3` D. `2 : 3`

The chromosomes in which centromere is situated close to one end are (a) telocentric (b) sub-metacentric (c) metacentric (d) acrocentric

Description : The chromosomes in which centromere is situated close to one end are (a) telocentric (b) sub-metacentric (c) metacentric (d) acrocentric

Last Answer : (d) acrocentric.

Select the incorrect match. (a) Lampbrush – Diplotene bivalents chromosomes (b) Allosomes – Sex chromosomes (c) Sub-metacentric – L-shaped chromosomes chromosomes (d) Polytene – Oocytes of chromosomes amphibians

Description : Select the incorrect match. (a) Lampbrush – Diplotene bivalents chromosomes (b) Allosomes – Sex chromosomes (c) Sub-metacentric – L-shaped chromosomes chromosomes (d) Polytene – Oocytes of chromosomes amphibians

Last Answer : (d) Polytene – Oocytes of chromosomes amphibians

Chromosomes having equal or almost equal arms are called (a) Metacentric (b) Acrocentric (c) Polycentric (d) Acentric

Description : Chromosomes having equal or almost equal arms are called (a) Metacentric (b) Acrocentric (c) Polycentric (d) Acentric

Last Answer : (a) Metacentric

A chromosome whose centromere lies at one end. (A) Sum-metacentric (B) Metacentric (C) Telocentric (D) Acrocentric

Description : A chromosome whose centromere lies at one end. (A) Sum-metacentric (B) Metacentric (C) Telocentric (D) Acrocentric

Last Answer : (C) Telocentric

Chromosome with equal arms is called (A) Metacentric (B) Sub-metacentric (C) Acrocentric (D) Telocentric

Description : Chromosome with equal arms is called (A) Metacentric (B) Sub-metacentric (C) Acrocentric (D) Telocentric

Last Answer : (A) Metacentric

Which of the following relationship is valid for the equilibrium position of the float in a Rotameter? (Where, Df= Drag force on the float Bf = Buoyant force on the float Wf = Weight of the float). (A) Df + Bf = Wf (B) Df = Bf + Wf (C) Df + Bf + Wf =0 (D) None of these

Description : Which of the following relationship is valid for the equilibrium position of the float in a Rotameter? (Where, Df= Drag force on the float Bf = Buoyant force on the float Wf = Weight of the float). (A) Df + Bf = Wf (B) Df = Bf + Wf (C) Df + Bf + Wf =0 (D) None of these

Last Answer : (A) Df + Bf = Wf

The time taken by the body to complete one oscillation is called

Description : The time taken by the body to complete one oscillation is called

Last Answer : time period.

During agitation of liquids, the (A) Froude number is independent for the curves between power number and Reynolds number in baffled system (B) Power number becomes independent of impellers Reynolds number at high Reynolds number, but is dependent on the geometry of the impeller (C) Froude number is used to account for the effect of surface (e.g., the centre vortex) on the power number (D) All (A), (B) and (C)

Description : During agitation of liquids, the (A) Froude number is independent for the curves between power number and Reynolds number in baffled system (B) Power number becomes independent of impellers Reynolds number at high Reynolds number, ... , the centre vortex) on the power number (D) All (A), (B) and (C)

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

The continuity equation (A) Is independent of the compressibility of the fluid (B) Is dependent upon the viscosity of the fluid (C) Represents the conservation of mass (D) None of these

Description : The continuity equation (A) Is independent of the compressibility of the fluid (B) Is dependent upon the viscosity of the fluid (C) Represents the conservation of mass (D) None of these

Last Answer : (C) Represents the conservation of mass

. Equivalent length of a pipe fitting is (A) Dependent on Reynolds number (B) Independent of Reynolds number (C) Dependent on the length of the pipe (D) None of these

Description : . Equivalent length of a pipe fitting is (A) Dependent on Reynolds number (B) Independent of Reynolds number (C) Dependent on the length of the pipe (D) None of these

Last Answer : (A) Dependent on Reynolds number

. It is desired to bring about a certain change in the state of a system by performing work on the system under adiabatic conditions. (A) The amount of work needed is path dependent (B) Work alone cannot bring out such a change of state (C) The amount of work needed is independent of path (D) More information is needed to conclude anything about the path dependence or otherwise of the work needed

Description : . It is desired to bring about a certain change in the state of a system by performing work on the system under adiabatic conditions. (A) The amount of work needed is path dependent (B) ... (D) More information is needed to conclude anything about the path dependence or otherwise of the work needed

Last Answer : (A) The amount of work needed is path dependent

A body in Simple Harmonic Motion will attain maximum velocity when it passes through a.Point of 0.75 amplitude b.Extreme point of the oscillation of L.H.S. c.Point of half amplitude d.Extreme point of the oscillation at R.H.S. e.Mean position

Description : A body in Simple Harmonic Motion will attain maximum velocity when it passes through a.Point of 0.75 amplitude b.Extreme point of the oscillation of L.H.S. c.Point of half amplitude d.Extreme point of the oscillation at R.H.S. e.Mean position

Last Answer : e. Mean position

The temperature at which ferromagnetic material can no longer be magnetised by the outside forces, is termed as the (A) Critical point (B) Curie temperature (C) Inversion temperature (D) Eutectic temperature

Description : The temperature at which ferromagnetic material can no longer be magnetised by the outside forces, is termed as the (A) Critical point (B) Curie temperature (C) Inversion temperature (D) Eutectic temperature

Last Answer : (B) Curie temperature

The lift of a balloon is (A) Increased, as it rises to a higher altitude (B) Due to the weight of the atmospheric air, that it displaces (C) Not dependent on the temperature of the atmosphere (D) None of these

Description : The lift of a balloon is (A) Increased, as it rises to a higher altitude (B) Due to the weight of the atmospheric air, that it displaces (C) Not dependent on the temperature of the atmosphere (D) None of these

Last Answer : (B) Due to the weight of the atmospheric air, that it displaces

At low Reynold's number, the power (P) required for agitating a fluid in a stirred tank becomes independent of inertial forces. In this limit, indicate which of the following relations is satisfied: Po = ρ/ρN3 D5 : Power number Re = ρ N D2 /μ: Reynold's number N is the impeller rotational speed, and D is the impeller diameter. (A) Po ∝ Re -1.0 (B) Po ∝ Re 0.0 (C) Po ∝ Re 0.5 (D) Po ∝ Re 1.0

Description : At low Reynold's number, the power (P) required for agitating a fluid in a stirred tank becomes independent of inertial forces. In this limit, indicate which of the following relations is satisfied: Po = ρ/ρN3 D5 : Power number Re = ρ N D2 ... Re -1.0 (B) Po ∝ Re 0.0 (C) Po ∝ Re 0.5 (D) Po ∝ Re 1.0

Last Answer : (B) Po ∝ Re 0.0 (C) Po ∝ Re 0.5