A. the length of pipe
B. the viscosity of fluid
C. the bulk modulus for the fluid
D. the original head
Related Mcqs:
- 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__________________?
A. L/4
B. L/3
C. L/2
D. L - 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 - 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 - 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 - 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) - 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 - In series-pipe problems_______________?
A. the head loss is same through each pipe
B. the discharge is same through each pipe
C. a trial solution is not necessary
D. the discharge through each pipe is added to obtain total discharge - Two pipe systems are said to be equivalent when_________________?
A. head loss and discharge are same in two systems
B. length of pipe and discharge are same in two systems
C. friction factor and length are same in two systems
D. length and diameter are same in two systems - 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 - For laminar flow in a pipe of circular cross-section, the Darcy’s friction factor f is________________?
A. directly proportional to Reynolds number and independent of pipe wall roughness
B. directly proportional to pipe wall roughness and independent of Reynolds number
C. inversely proportional to Reynolds number and indpendent of pipe wall roughness
D. inversely proportional to Reynolds number and directly proportional to pipe wall roughness
