The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as__________________?

Related Mcqs:

1. If the weight of a body immersed in a fluid exceeds the buoyant force, then the body will________________?

   A. rise until its weight equals the buoyant force
   B. tend to move downward and it may finally sink
   C. float
   D. none of the above

2. The position of center of pressure on a plane surface immersed vertically in a static mass of fluid is______________?

   A. at the centroid of the submerged area
   B. always above the centroid of the area
   C. always below the centroid of the area
   D. none of the above

3. A right circular cylinder open at the top is filled with liquid and rotated about its vertical axis at such a speed that half the liquid spills out, then the pressure intensity at the center of bottom is___________________?

   A. zero
   B. one-fourth its value when cylinder was full
   C. one-half its value when cylinder was full
   D. cannot be predicted from the given data

4. When a liquid rotates at a constant angular velocity about a vertical axis as a rigid body, the pressure intensity varies________________?

   A. linearly with radial distance
   B. as the square of the radial distance
   C. inversely as the square of the radial distance
   D. inversely as the radial distance

5. With the same cross-sectional area and immersed in same turbulent flow, the largest total drag will be on__________________?

   A. a circular disc of plate held normal to flow
   B. a sphere
   C. a cylinder
   D. a streamlined body

6. If a vessel containing liquid moves downward with a constant acceleration equal to ‘g’ then_____________?

   A. the pressure throughout the liquid mass is atmospheric
   B. there will be vacuum in the liquid
   C. the pressure in the liquid mass is greater than hydrostatic pressure
   D. none of the above

7. The discharge of a liquid of kinematic viscosity 4 cm2/sec through a 8 cm dia-meter pipe is 3200n cm7sec. The type of flow expected is__________________?

   A. laminar flow
   B. transition flow
   C. turbulent flow
   D. not predictable from the given data

8. For a sphere of radius 15 cm moving with a uniform velocity of 2 m/sec through a liquid of specific gravity 0.9 and dynamic viscosity 0.8 poise, the Reynolds number will be_________________?

   A. 300
   B. 337.5
   C. 600
   D. 675

9. A floating body is said to be in a state of stable equilibrium_________________?

   A. when its metacentric height is zero
   B. when the metacentre is above the centre of gravity
   C. when the metacentre is below the centre of gravity
   D. only when its centre of gravity is below its centre of buoyancy

10. A valve is suddenly closed in a water main in wl.ich the velocity is 1 m/sec and velocity of pressure wave is 981 m/ sec. The inertia head at the valve will be________________?

    A. 1 m
    B. 10m
    C. 100m
    D. none of the above