Discussion
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- Question
A moving fluid mass may be brought to a static equilibrium position, by aplying an imaginary inertia force of the same magnitude as that of the accelerating force but in the opposite direction. This statement is called
Options- A. Pascal's law
- B. Archimede's principle
- C. D-Alembert's principle
- D. none of these
- Correct Answer
- D-Alembert's principle
- 1. The velocity of liquid flowing through an orifice varies with the available head of the liquid.
Options- A. Agree
- B. Disagree Discuss
- 2. The force of buoyancy is always __________ the weight of the liquid displaced by the body.
Options- A. equal to
- B. less than
- C. more than Discuss
- 3. The total head of a liquid particle in motion is equal to
Options- A. pressure head + kinetic head + potential head
- B. pressure head - (kinetic head + potential head)
- C. potential head - (pressure head + kinetic head)
- D. kinetic head - (pressure head + potential head) Discuss
- 4. The quantity of a liquid flowing per second through a section of a pipe or a channel is called discharge and is measured in cumecs (m3/s).
Options- A. True
- B. False Discuss
- 5. The divergent portion of a venturimeter is made longer than convergent portion in order to
Options- A. avoid the tendency of breaking away the stream of liquid
- B. to minimise frictional losses
- C. both (a) and (b)
- D. none of these Discuss
- 6. The specific gravity of water is taken as
Options- A. 0.001
- B. 0.01
- C. 0.1
- D. 1 Discuss
- 7. The total pressure on the bottom of a closed cylindrical vessel completely filled up with a liquid is the sum of the total centrifugal pressure and the weight of the liquid in the vessel.
Options- A. Correct
- B. Incorrect Discuss
- 8. 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
- 9. When the Mach number is equal to unity, the flow is called sonic flow.
Options- A. True
- B. False Discuss
- 10. Poise is the unit of viscosity in C.G.S. system of units.
Options- A. Agree
- B. Disagree Discuss
Hydraulics and Fluid Mechanics problems
Search Results
Correct Answer: Agree
Correct Answer: equal to
Correct Answer: pressure head + kinetic head + potential head
Correct Answer: True
Correct Answer: both (a) and (b)
Correct Answer: 1
Correct Answer: Correct
Correct Answer: hyper-sonic flow
Correct Answer: True
Correct Answer: Agree
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