Discussion
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- Question
The unit of surface tension is
Options- A. N/m
- B. N/m2
- C. N/m3
- D. N-m
- Correct Answer
- N/m
- 1. When a body is immersed wholly or partially in a liquid, it is lifted up by a force equal to the weight of liquid displaced by the body. This statement is called
Options- A. Pascal's law
- B. Archimede's principle
- C. principle of floatation
- D. Bernoulli's theorem Discuss
- 2. The reciprocal of Euler's number is called Newton number.
Options- A. Yes
- B. No Discuss
- 3. Poise is the unit of viscosity in C.G.S. system of units.
Options- A. Agree
- B. Disagree Discuss
- 4. When the Mach number is equal to unity, the flow is called sonic flow.
Options- A. True
- B. False Discuss
- 5. When the Mach number is more than 6, the flow is called
Options- A. sub-sonic flow
- B. sonic flow
- C. super-sonic flow
- D. hyper-sonic flow Discuss
- 6. The total pressure on the top of a closed cylindrical vessel competely filled up with a liquid is
Options- A. directly proportional to (radius)2
- B. inversely proportional to (radius)2
- C. directly proportional to (radius)4
- D. inversely proportional to (radius)4 Discuss
- 7. The ratio of the inertia force to the __________ is called Euler's number.
Options- A. pressure force
- B. elastic force
- C. surface tension force
- D. viscous force Discuss
- 8. The body will float if the force of buoyancy is __________ the weight of the liquid displaced.
Options- A. equal to
- B. less than
- C. more than Discuss
- 9. A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance __________ from the liquid surface.
Options- A. H/3
- B. H/2
- C. 2H/3
- D. 3H/4 Discuss
- 10. Kinematic viscosity is the product of dynamic viscosity and the density of the liquid.
Options- A. Yes
- B. No Discuss
Hydraulics and Fluid Mechanics problems
Search Results
Correct Answer: Archimede's principle
Correct Answer: Yes
Correct Answer: Agree
Correct Answer: True
Correct Answer: hyper-sonic flow
Correct Answer: directly proportional to (radius)4
Correct Answer: pressure force
Correct Answer: more than
Correct Answer: 2H/3
Correct Answer: No
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