Discussion
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- Question
With a clinging nappe of a weir, the excess discharge, is
Options- A. 6% to 7%
- B. 8% to 10%
- C. 18% to 20%
- D. 25% to 30%
- E. 30% to 40%.
- Correct Answer
- 25% to 30%
- 1. An ideal fluid
Options- A. is frictionless and incompressible
- B. obeys Newton's law of velocity
- C. is similar to gas
- D. is very viscous. Discuss
- 2. Practical fluids possess
Options- A. viscosity
- B. surface tension
- C. compressibility
- D. all the above. Discuss
- 3. One metric slug is equal to
Options- A. 1 kg wt
- B. 9.81 kg wt
- C. 9.81 kg mass
- D. 0.98 kg wt. Discuss
- 4. For uniform flow in canals
Options- A. there is a balance between the frictional loss and drop in elevation of the channel
- B. bed and free water surfaces of a channel are parallel to each other
- C. bed of channel represents the hydraulic gradient
- D. all the above. Discuss
- 5. To measure very low pressure, we use
Options- A. barometers
- B. piezometers
- C. manometers
- D. differential manometers. Discuss
- 6. In case of laminar flow through a circular pipe,
Options- A. momentum correction factor is 1.33
- B. energy correction factor is 2.00
- C. both (a) and (b)
- D. Neither (a) nor (b). Discuss
- 7. A rise or fall of liquid in a glass tube of a very small diameter when dipped is
Options- A. directly proportional to the force per unit length of periphery
- B. direcly proportional to the sine of the angle of contact
- C. directly proportional to the specific weight of liquid
- D. inversely proportional to the diameter of the glass tube. Discuss
- 8. When the whole fluid mass rotates either due to fluid pressure or gravity or rotation previously imparted, the motion is known as
Options- A. free vortex
- B. forced vortex
- C. non-potential vortex
- D. rotational vortex. Discuss
- 9. The depth of the centre of pressure on a vertical rectangular gate (4 m wide, 3 m high) with water upto top surface, is
Options- A. 1.0 m
- B. 1.5 m
- C. 2.0 m
- D. 2.5 m. Discuss
- 10. The pressure less than atmospheric , pressure, is known
Options- A. suction pressure
- B. vacuum pressure
- C. negative gauge pressure
- D. all the above. Discuss
Hydraulics problems
Search Results
Correct Answer: is frictionless and incompressible
Correct Answer: all the above.
Correct Answer: 9.81 kg mass
Correct Answer: all the above.
Correct Answer: manometers
Correct Answer: both (a) and (b)
Correct Answer: directly proportional to the specific weight of liquid
Correct Answer: free vortex
Correct Answer: 2.0 m
Correct Answer: all the above.
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