When time of closure tc = L/v0 (where L is length of pipe and v0 is speed of pressure wavE., the portion of pipe length subjected to maximum head is__________________?

Related Mcqs:

1. The speed of a pressure wave through a pipe depends upon________________?

   A. the length of pipe B. the viscosity of fluid C. the bulk modulus for the fluid D. the original head...

2. The length of a pipe is 1 km and its diameter is 20 cm. If the diameter of an equivalent pipe is 40 cm, then its length is_____________________?

   A. 32 km B. 20 km C. 8 km D. 4 km...

3. The horse power transmitted through a pipe is maximum when the ratio of loss of head due to friction and total head supplied is________________?

   A. 1/3 B. 1/4 C. 1/2 D. 2/3...

4. 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...

5. Two pipes of same length and diameters d and 2d respectively are connected in series. The diameter of an equivalent pipe of same length is________________?

   A. less than d B. between d and 1.5 d C. between 1.5 d and 2d D. greater than 2d...

6. 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...

7. A fluid of kinematic viscosity 0.4 cm2/sec flows through a 8 cm diameter pipe. The maximum velocity for laminar flow will be__________________?

   A. less than 1 m/sec B. 1 m/sec C. 1.5 m/sec D. 2 m/sec...

8. The maximum thickness of boundary layer in a pipe of radius r is____________________?

   A. 0 B. r/2 C. r D. 2r...

9. 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...

10. 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)...