The center of pressure of a surface subjected to fluid pressure is the point
(A) On the surface at which resultant pressure acts
(B) On the surface at which gravitational force acts
(C) At which all hydraulic forces meet
(D) Similar to metacentre

1 Answer

Answer :

Answer: Option A

Related questions

Description : Center of percussion is  (A) The point of C.G.  (B) The point of metacentre  (C) The point of application of the resultant of all the forces tending to cause a body to rotate  about a certain axis  (D) Point of suspension

Last Answer : (C) The point of application of the resultant of all the forces tending to cause a body to rotate  about a certain axis 

Description : The resultant of all normal pressures acts (A) At C.G. of body (B) At center of pressure (C) Vertically upwards (D) At metacentre

Last Answer : Answer: Option C

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 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

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 : Fluid is a substance that (A) Cannot be subjected to shear forces (B) Always expands until it fills any container (C) Has the same shear stress at a point regardless of its motion (D) Cannot remain at rest under action of any shear force

Last Answer : Answer: Option D

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

Last Answer : Answer: Option D

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

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

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 : 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

Last Answer : Answer: Option C

Description : The resultant upward pressure of the fluid on an immersed body is called (A) Up-thrust (B) Buoyancy (C) Center of pressure (D) All the above are correct

Last Answer : Answer: Option B

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

Description : Center of pressure on an inclined plane is (A) At the Centroid (B) Above the Centroid (C) Below the Centroid (D) At metacentre

Last Answer : Answer: Option C

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 : 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

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

Last Answer : Answer: Option D

Description :  In order to keep a body moving in a circle, there exists a force on it that is directed toward the center of the circle. This force is known asA. Centrifugal force B. Centripetal force C. Gravitational Force D. magnetic force

Last Answer : Centripetal force

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 : 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 : 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

Last Answer : Answer: Option B

Description : When a vertical wall is subjected to pressures due to liquid on both sides, the resultant pressure is the __________ of the two pressures. (A) Sum (B) Difference (C) Arithmetic mean (D) Geometric mean

Last Answer : Answer: Option B

Description : The product of either force of couple with the arm of the couple is called  (A) Resultant couple  (B) Moment of the forces  (C) Resulting couple  (D) Moment of the couple 

Last Answer : (D) Moment of the couple 

Description : A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance __________ from the liquid surface. (A) H/3 (B) H/2 (C) 2H/3 (D) 3H/4

Last Answer : Answer: Option C

Description : 17. When a body is placed over a liquid, it is subjected to gravitational force and upthrust of the liquid. A) True B) False

Last Answer : A

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

Last Answer : Answer: Option D

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

Last Answer : Answer: Option D

Description : A body floats in stable equilibrium (A) When its meatcentric height is zero (B) When the metacentre is above e.g. (C) When its e.g. is below its center of buoyancy (D) Metacentre has nothing to do with position of e.g. for determining stability

Last Answer : Answer: Option B

Description : A number of forces acting at a point will be in equilibrium if a.Sum of the forces is zero b.Algebraic sum of the forces is zero c.Sum of the resolved parts in any two perpendicular directions are both zero d.None of the above e.The metacentre of the body

Last Answer : d. None of the above

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

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 : According to principle of moments  (A) If a system of coplanar forces is in equilibrium, then their algebraic sum is zero  (B) If a system of coplanar forces is in equilibrium, then the ... of  their resultant about the same point  (D) Positive and negative couples can be balanced

Last Answer : (C) The algebraic sum of the moments of any two forces about any point is equal to moment of  their resultant about the same point 

Description : The weight of a body is due to  (A) Centripetal force of earth  (B) Gravitational pull exerted by the earth  (C) Forces experienced by body in atmosphere  (D) Gravitational force of attraction towards the centre of the earth 

Last Answer : (D) Gravitational force of attraction towards the centre of the earth 

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

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

Last Answer : Answer: Option D

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 : The necessary condition for the forces acting on a body to be in equilibrium is that these should be a.In the same direction b.Coplaner c.Similar in nature d.Should not meet at a point e.(B) and (D) above

Last Answer : e. (B) and (D) above

Description : Earthworms have no skeleton but during burrowing, the anterior end becomes turgid and acts as a hydraulic skeleton. It is due to (a) gut peristalsis (b) setae (c) coelomic fluid (d) blood.

Last Answer : (c) coelomic fluid

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

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

Description : Two forces of 6 and 8 kg act at right angles to each other, the resultant force will be a.100 b.28 c.41 d.14 e.10

Last Answer : e. 10

Description : Two forces, F1 and F2, each of magnitude 5 N are inclined to each other at 60°. Find the magnitude and direction of their resultant force.

Last Answer : Two forces, F1 and F2, each of magnitude 5 N are inclined to each other at 60°. Find the magnitude and direction of their resultant force.

Description : Combined effect of several forces is known as A. net force B. resultant force C. normal force D. weight

Last Answer : resultant force

Description : The torque produced by a DC motor armature is the product of the force acting at the armature surface multiplied by _____________. A. work done by the armature in one revolution B. effective ... arm at the center of rotation of the armature D. perpendicular distance to its center of rotation

Last Answer : Answer: D

Description : The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the  resolved part of their resultant in the same direction. This is as per the principle of  (A) Forces  (B) Independence of forces  (C) Dependence of forces  (D) Resolution of forces 

Last Answer : (D) Resolution of forces 

Description : Which of the following forces does not act on a fluid at rest? (A) Viscous force (B) Gravity force (C) Hydrostatic force (D) Surface tension force

Last Answer : (A) Viscous force

Description : According to principle of transmissiblity of forces, when a force acts upon a body, its effect is a.maximum when it acts at C.G. of the body b.minimum when it acts at C.G. of the body c.different at different points of the body d.107 dynes e.same at every point in its line of action

Last Answer : e. same at every point in its line of action

Description : According to the principle of transmissibility of forces, when a force acts upon a body ; its effect is a.Minimum when it acts at C.G. of the body b.Maximum when it acts at C.G. of the body c.Different at different points of body d.Same at every point in its line of action e.None of the above

Last Answer : d. Same at every point in its line of action

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