Hydraulics and Fluid Mechanics problems
- 1. An internal mouthpiece is said to be running __________ if the length of the mouthpiece is more than three times the diameter of the orifice.
Options- A. free
- B. partially
- C. full Discuss
Correct Answer: full
- 2. A pipe of length more than double the diameter of orifice fitted externally or internally to the orifice is called a
Options- A. notch
- B. weir
- C. mouthpiece
- D. nozzle Discuss
Correct Answer: mouthpiece
- 3. In a venturiflume, the flow takes place at
Options- A. atmospheric pressure
- B. gauge pressure
- C. absolute pressure
- D. none of these Discuss
Correct Answer: atmospheric pressure
- 4. A nozzle placed at the end of a water pipe line discharges water at a
Options- A. low pressure
- B. high pressure
- C. low velocity
- D. high velocity Discuss
Correct Answer: high velocity
- 5. In order to avoid tendency of separation at throat in a venturimeter, the ratio of the diameter at throat to the diameter of pipe should be
Options- A.
- B.
- C.
- D.
Discuss
Correct Answer:
- 6. If the depth of water in an open channel is less than the critical depth, the flow is called
Options- A. critical flow
- B. turbulent flow
- C. tranquil flow
- D. torrential flow Discuss
Correct Answer: torrential flow
- 7. A fluid whose viscosity changes with the rate of deformation or shear strain is known as non-newtonian fluid.
Options- A. True
- B. False Discuss
Correct Answer: True
- 8. A fluid which obeys the Newton's law of viscosity is termed as
Options- A. real fluid
- B. ideal fluid
- C. newtonian fluid
- D. non-newtonian fluid Discuss
Correct Answer: newtonian fluid
- 9. A weir, generally, used as a spillway of a dam is
Options- A. narrow crested weir
- B. broad crested weir
- C. Ogee weir
- D. submerged weir Discuss
Correct Answer: Ogee weir
- 10. The discharge in an open channel corresponding to critical depth is
Options- A. zero
- B. minimum
- C. maximum Discuss
Correct Answer: maximum
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