Equation of continuity is based on the principle of conservation of_________________?

Related Mcqs:

1. The continuity equation pi V,A,= p2V2A2 is based on the following assumption regarding flow of fluid______________?

   A. steady flow
   B. uniform flow
   C. incompressible flow
   D. frictionless flow

   where pi and p2 are mass densities

2. Which of the following velocity potentials satisfies continuity equation ?

   A. x2y
   B. x2-y2
   C. cosx
   D. x2 + y2

3. Surge wave in a rectangular channel is an example of_________________?

   1. steady flow
   2. unsteady flow
   3. uniform flow
   4. non-uniform flow
   The correct answer is?

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

4. The total pressure on a plane surface inclined at an angle 9 with the horizontal is equal to_______________?

   A. PA
   B. pA sin 9
   C. pA cos 9
   D. pA tan 9

   where p is pressure intensity at centroid of area and A is area of plane surface

5. The horizontal component of force on a curved surface is equal to the_______________?

   A. product of pressure intensity at its centroid and area
   B. force on a vertical projection of the curved surface
   C. weight of liquid vertically above the curved surface
   D. force on the horizontal projection of the curved surface

6. Size of a venturimeter is specified by________________?

   A. pipe diameter
   B. throat diameter
   C. angle of diverging section
   D. both pipe diameter as well as throat diameter

7. The wake_______________?

   A. always occurs before a separation point
   B. always occurs after a separation point
   C. is a region of high pressure intensity
   D. none of the above

8. Drag force is a function of________________?

   1. projected area of the body
   2. mass density of the fluid
   3. velocity of the body
   The correct answer is ?

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

9. Due to each end contraction, the discharge of rectangular sharp crested weir is reduced by________________?

   A. 5%
   B. 10%
   C. 15%
   D. 20%

10. Which of the following is an incorrect statement ?

    A. Coefficient of contraction of a venturimeter is unity
    B. Flow nozzle is cheaper than venturimeter but has higher energy loss
    C. Discharge is independent of orientation of venturimeter whether it is horizontal, vertical or inclined
    D. None of the above statement is correct.