An open tank contains 1 m deep water with 50 cm depth of oil of specific gravity 0.8 above it. The intensity of pressure at the bottom of tank will be________________?

Related Mcqs:

1. A closed tank containing water is moving in a horizontal direction along a straight line at a constant speed. The tank also contains a steel ball and a bubble of air. If the tank is decelerated horizontally, then________________?

   1. the ball will move to the front
   2. the bubble will move to the front
   3. the ball will move to the rear
   4. the bubble will move to the rear
   Find out which of the above statements are correct ?

   A. (1) and (2)
   B. (1)and(4)
   C. (2) and (3)
   D. (3) and (4)

2. 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

3. An open cubical tank of 2 m side is filled with water. If the tank is rotated with an acceleration such that half of the water spills out, then the acceleration is equal to_______________?

   A. g/3
   B. g/2
   C. 2g/3
   D. g

4. A rectangular block 2 m long, 1 m wide and 1 m deep floats in water, the depth of immersion being 0.5 m. If water weighs 10 kN/m3, then the weight of the block is________________?

   A. 5kN
   B. lOkN
   C. 15 kN
   D. 20 kN

5. A vertical rectangular plane surface is submerged in water such that its top and bottom surfaces are 1.5 m and 6.0 m res-pectively below the free surface. The position of center of pressure below the free surface will be at a distance of________________?

   A. 3.75 m
   B. 4.0 m
   C. 4.2m
   D. 4.5m

6. 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

7. 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

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. If the dynamic viscosity of a fluid is 0.5 poise and specific gravity is 0.5, then the kinematic viscosity of that fluid in stokes is__________________?

   A. 0.25
   B. 0.50
   C. 1.0
   D. none of the above

10. The depth ‘d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be_________________?

    A. 0.423 D
    B. 0.577 D
    C. 0.223 D
    D. 0.707 D

    where D is the depth of flow