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
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
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
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
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
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
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
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
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
Description : When a body floating in a liquid, is displaced slightly, it oscillates about (A) C.G. of body (B) Center of pressure (C) Center of buoyancy (D) Metacentre
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
Description : A body partially floats in water when (a) The volume of the displaced liquid is equal to the volume of the body (b) The volume of the displaced liquid is greater than the volume of the body (c) ... the weight of the body (d) The weight of the displaced water is greater than the weight of the body
Last Answer : Ans:(a)
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
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
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
Description : The force of buoyancy is always __________ the weight of the liquid displaced by the body. (A) Equal to (B) Less than (C) More than (D) None of these
Last Answer : Answer: Option A
Description : The body will float if the force of buoyancy is __________ the weight of the liquid displaced. (A) Equal to (B) Less than (C) More than (D) None of these
Description : The body will sink down if the force of buoyancy is __________ the weight of the liquid displaced. (A) Equal to (B) Less than (C) More than (D) None of these
Description : 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) (C) Principle of floatation (D) Bernoulli's theorem
Description : Benthoic animals are those, which (a) are submerged in area (b) float on the sea surface (c) are deep dweller in sea (d) are floating (free) organisms.
Last Answer : (c) are deep dweller in sea
Description : Pneumatophores occur in (a) halophytes (b) free-floating hydrophytes (c) carnivorous plants (d) submerged hydrophytes.
Last Answer : (a) halophytes
Description : Eichhornia crassips is a representative of a). Free floating b). Rooted floating c). Rooted submerged d). Emergent
Last Answer : a). Free floating
Description : Pneumatophores occur in (1) Halophytes (2) Free-floating hydrophytes (3) Carnivorous plants (4) Submerged hydrophytes
Last Answer : (1) Halophytes
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
Description : "Upthrust = Weight of the liquid displaced" is known as A. Bernoulli's Principle B. Archimedes' Principle C. Pascal's Law D. Coulomb's law
Last Answer : Archimedes' Principle
Description : The buoyancy depends upon the (A) Weight of the liquid displaced (B) Pressure with which the liquid is displaced (C) Viscosity of the liquid (D) Compressibility of the liquid
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
Description : 12. The tendency of a liquid to uplift a submerged body, because of the upward thrust of the liquid, is known as buoyancy. A) Agree B) Disagree
Description : For a body floating in water, the apparent weight is equal to - (1) Actual weight of the body (2) Zero (3) Weight of the body minus weight of the liquid (4) Weight of the body plus upward thrust
Last Answer : (3) Weight of the body minus weight of the liquid
Description : In case of __________ boiling, the bubbles formed on a submerged hot surface get absorbed in the mass of the liquid. (A) Nucleate (B) Pool (C) Low pressure (D) None of these
Last Answer : (B) Pool
Description : Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an (A) Blast furnace (B) Steam boiler (C) Salt bath furnace (D) Annealing furnace
Last Answer : (C) Salt bath furnace
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
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
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.
Description : A cylindrical block of wood floats in water with four-fifth of its volume submerged in water. The relative density of wood is (a) 0.8 (b) 0.9 (c) 1.0 (d) 1.2
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
Description : Piston displacement is the volume displaced by the piston during one stroke and is usually expressed in 1. Cubic meter 2.cubic inches 3. Both of these 4. none of these
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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
Description : A floating body always displaces liquid equal to its which thing? -Do You Know?
Last Answer : answer:
Description : A floating body always displaces liquid equal to its which thing?
Last Answer : Weight
Description : 11. If a body floating in a liquid does not return back to its original position and heels farther "away when given a small angular displacement, the body is said to be in neutral equilibrium. A) Yes B) No
Last Answer : B
Description : 06. A body floating in a liquid is said to be not in equilibrium if its metacentre lies below its centre of gravity. A) Agree B) Disagree
Description : 04. A body floating in a liquid is said to be in a stable equilibrium, if its metacentre coincides with its centre of gravity. A) True B) False
Description : If a body floating in a liquid returns back to its original position, when given a small angular displacement, the body is said to be in (A) Neutral equilibrium (B) Stable equilibrium (C) Unstable equilibrium (D) None of these
Description : A body floating in a liquid is said to be in neutral equilibrium, if its metacentre (A) Coincides with its centre of gravity (B) Lies above its centre of gravity C) Lies below its centre of gravity (D) Lies between the centre of buoyancy and centre of gravity
Description : When a body, floating in a liquid, is given a small angular displacement, it starts oscillating about a point known as (A) Centre of pressure (B) Centre of gravity (C) Centre of buoyancy (D) Metacentre
Description : If a body floating in a liquid occupies a new position and remains at rest in this new position, when given a small angular displacement, the body is said to be in __________ equilibrium. (A) Neutral (B) Stable (C) Unstable (D) None of these
Description : For a body floating in a liquid the normal pressure exerted by the liquid acts at A) Bottom surface of the body (B) C.G. of the body (C) Metacentre (D) All points on the surface of the body
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
Description : A hydrogen balloon floats because of – (1) Air pressure decreases with decrease in height (2) Air pressure decreases with decrease in weight (3) Weight of the balloon is less than the weight of air displaced by it (4) The pressure inside the balloon is more than the pressure outside it
Last Answer : (3) Weight of the balloon is less than the weight of air displaced by it Explanation: A hydrogen atom is very light. Most of the air on earth is made up of nitrogen, oxygen, and carbon dioxide. ... grams per liter. Nitrogen, which makes up 80% of the air we breathe, weighs 1.2506 grams per liter.