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
Related Mcqs:
- 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 - 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 - 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 - 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 - Drag force acting on a body does not depend upon the____________________?
A. Density of the fluid
B. Density of the body
C. Velocity of the body
D. Projected area of the body - The line traced by a single fluid particle as it moves over a period of time is called ______________ line?
A. Stream
B. Path
C. Equipotential
D. None of these - The location of centre of pressure, which defines the point of application of the total pressure force on the surface, can be calculated by applying the principle of moments according to which “sum of the moment of the resultant force about an axis is equal to the sum of the components about the same axis”. The centre of pressure of a rectangular surface (of width ‘w’) immersed vertically in a static mass of fluid is at a depth of (where, y = depth of the liquid) ?
A. 1/(y/3)
B. 2y/3
C. 1/(y/4)
D. 3y/4 - Weber number is the ratio of inertial force to _____________ force?
A. Surface tension
B. Gravity
C. Viscous
D. Elastic - In the complete turbulence zone (in rough pipes), the____________________?
A. Rough and smooth pipes have the same friction factor
B. Laminar film covers the roughness projections
C. Friction factor depends upon NRe only
D. Friction factor is independent of the relative roughness - Differential manometer measures the____________________?
A. Atmospheric pressure
B. Sub-atmospheric pressure
C. Pressure difference between two points
D. None of these
