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 : 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 : 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 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 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
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 : Resultant pressure of the liquid in the case of an immersed body acts through (A) Centre of gravity (B) Centre of pressure (C) Metacentre (D) Centre of buoyancy
Last Answer : Answer: Option B
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 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 : The weight of a body acts through the centre of – (1) gravity (2) mass (3) both (1) and (2) (4) buoyancy
Last Answer : (1) gravity Explanation: The centre of gravity of a collection of masses is the point where all the weight of the object can be considered to be concentrated. The entire weight acts through the center of ... to the surface of the Earth) the Centres of Gravity and Mass are in exactly the same place.
Description : The weight of a body acts through the centre of (1) gravity (2) mass (3) both (1) and (2) (4) buoyancy
Last Answer : gravity
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 : 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 : 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 : 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 : 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 : 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) 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 : The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as (A) Meta center (B) Center of pressure (C) Center of buoyancy (D) Center of gravity
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
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
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
Description : According to principle of transmissibility of forces, the effect of a force upon a body is (A) Maximum when it acts at the center of gravity of a body (B) Different at different points in its line of action ... at every point in its line of action (D) Minimum when it acts at the C.G. of the body
Last Answer : (C) The same at every point in its line of action
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
Last Answer : B
Description : Euler's dimensionless number relates the following (A) Inertial force and gravity (B) Viscous force and inertial force (C) Viscous force and buoyancy force (D) Pressure force and inertial force
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
Description : The centre of percussions is a.The point of application of the resultant of all the forces tending to cause a body to rotate about a central axis b.The point of application of the resultant ... .The point in a body about which it can rotate horizontally and oscillates under the influence of gravity
Last Answer : a. The point of application of the resultant of all the forces tending to cause a body to rotate about a central axis
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
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 Bernoulli's equation is based on the assumption that (A) There is no loss of energy of the liquid flowing (B) The velocity of flow is uniform across any cross-section of the pipe (C) No force except gravity acts on the fluid (D) All of the above
Description : The conditions for the stable equilibrium of a floating body are (A) The metacentre should lie above the center of gravity (B) The center of buoyancy and the center of gravity must lie on the same vertical line (C) A righting couple should be formed (D) All the above are correct
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
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 : Pick out the wrong statement: (A) The vacuum pressure is always the negative gauge pressure (B) The pressure of the liquid measured by a piezometer tube is the gauge pressure (C) Manometric ... point at which the resultant pressure on an immersed surface acts, is known as the centre of gravity
Last Answer : (D) The point at which the resultant pressure on an immersed surface acts, is known as the centre of gravity
Description : A hydrometer indicates specific gravity by comparing the _____________. A. density of a substance in water with the density of the same substance in air B. differences in weight between water and the ... of an object in water with the buoyancy of the same object in the liquid being measured
Last Answer : Answer: D
Description : The point at which the resultant pressure on an immersed surface acts, is known as (A) Centre of gravity (B) Centre of depth (C) Centre of pressure (D) Centre of immersed surface
Description : The centre of pressure acts __________ the centre of gravity of immersed surface. (A) At (B) Above (C) Below (D) None of these
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/ ) +
Description : For a floating body to be in stable equilibrium, its metacentre should be (A) Below the center of gravity (B) Below the center of buoyancy (C) Above the center of buoyancy (D) Above the center of gravity
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
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
Description : The two important forces for a floating body are (A) Buoyancy, gravity (B) Buoyancy, pressure (C) Buoyancy, inertial (D) Inertial, gravity
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 : 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
Description : 13. The centre of buoyancy is the centre of area of the immersed body. A) Correct B) Incorrec
Last Answer : A
Description : For a floating body to be in equilibrium (A) Meta centre should be above e.g . (B) Centre of buoyancy and e.g. must lie on same vertical plane (C) A righting couple should be formed (D) All of the above