Discussion
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- Question
A compound pipe of diameter d1, d2 and d3 having lengths l1, l2 and l3 is to be replaced by an equivalent pipe of uniform diameter d and of the same length (l) as that of the compound pipe. The size of the equivalent pipe is given by
Options- A.
- B.
- C.
- D.
- Correct Answer
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- 1. The length of the divergent cone in a venturimeter is __________ that of the convergent cone.
Options- A. equal to
- B. double
- C. three to four times
- D. five to six times Discuss
- 2. If a body floating in a liquid does not return back to its original position, and heels farther "away when given a small angular displacement, the body is said to be in neutral equilibrium.
Options- A. Yes
- B. No Discuss
- 3. The volume per unit mass of a liquid is called specific volume.
Options- A. Yes
- B. No Discuss
- 4. Reynold's number is the ratio of inertia force to
Options- A. pressure force
- B. elastic force
- C. gravity force
- D. viscous force Discuss
- 5. Whenever a plate is held immersed at some angle with the direction of flow of the liquid, it is subjected to some pressure. The component of this pressure, at right angles to the direction of flow of the liquid is known as lift.
Options- A. True
- B. False Discuss
- 6. An air vessel is provided at the summit in a syphon to
Options- A. avoid interruption in the flow
- B. increase discharge
- C. increase velocity
- D. maintain pressure difference Discuss
- 7. The viscosity of a liquid is due to cohesion of its particles.
Options- A. Correct
- B. Incorrect Discuss
- 8. The unit of dynamic viscosity in S.I. units is
Options- A. N-m/s2
- B. N-s/m2
- C. poise
- D. stoke Discuss
- 9. The velocity corresponding to Reynold number of 2800, is called
Options- A. sub-sonic velocity
- B. super-sonic velocity
- C. lower critical velocity
- D. higher critical velocity Discuss
- 10. A flow in which the viscosity of fluid is dominating over the inertia force is called
Options- A. steady flow
- B. unsteady flow
- C. laminar flow
- D. turbulent flow Discuss
Hydraulics and Fluid Mechanics problems
Search Results
Correct Answer: three to four times
Correct Answer: No
Correct Answer: Yes
Correct Answer: viscous force
Correct Answer: True
Correct Answer: avoid interruption in the flow
Correct Answer: Correct
Correct Answer: N-s/m2
Correct Answer: higher critical velocity
Correct Answer: laminar flow
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