Discussion
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- Question
A closed cylindrical vessel of 100 cm diameter and 200 cm high is completely filled with a liquid (sp. weight 1600 kg/m3) when rotated about its vertical axis at 100 r.p.m. The total pressure on its lid, is
Options- A. 459 kg
- B. 549 kg
- C. 945 kg
- D. 954 kg
- E. 95.4 kg.
- Correct Answer
- 954 kg
- 1. When water flows over a rectangular suppressed weir, the negative pressure created beneath the nappe
Options- A. increases the discharge
- B. decreases the discharge
- C. does not effect the discharge
- D. none of these. Discuss
- 2. Hydraulic ram is a device
Options- A. for lifting water without an electric motor
- B. for accelerating water flow
- C. for lifting heavy loads
- D. none of these. Discuss
- 3. For most economical rectangular section of a channel, the depth is kept
Options- A. one-fourth of the width
- B. three times the hydraulic radius
- C. half the width
- D. hydraulic mean depth
- E. none of these. Discuss
- 4. A rectangular channel 6 m wide and 3 m deep and having a bed slope as 1 in 2000 is running full. If Chezy's constant C = 54.8, pick up the correct specification of the channel from the following :
Options- A. hydraulic mean depth = 1.5 m
- B. Velocity of flow = 1.5 m/sec
- C. Rate of flow = 27 m3/sec
- D. All the above. Discuss
- 5. The ratio of the inertia and gravitational force acting in any flow, ignoring other forces, is called
Options- A. Euler number
- B. Frode number
- C. Reynold number
- D. Weber number. Discuss
- 6. To avoid the force of surface tension in an inclined manometer, the minimum angle of inclination is
Options- A. 2°
- B. 3°
- C. 4°
- D. 5° Discuss
- 7. Non-over flow double curvature concrete arch, is provided in
Options- A. Bhakra dam
- B. Hirakund dam
- C. Nagarjuna Sagar dam
- D. Idukki dam. Discuss
- 8. The discharge through a 100 mm diameter external mouth piece fitted to the side of a large vessel is 0.05948 m3/s. The head over the mouth piece is
Options- A. 2 m
- B. 2.5 m
- C. 3.0 m
- D. 4.0 m. Discuss
- 9. Barometres are used to measure
Options- A. pressure in water channels, pipes etc.
- B. difference in pressure at two points
- C. atmospheric pressure
- D. very low pressure
- E. very high pressure. Discuss
- 10. In flow, the liquid particles may possess
Options- A. potential energy
- B. kinetic energy
- C. pressure energy
- D. all the above. Discuss
Hydraulics problems
Search Results
Correct Answer: increases the discharge
Correct Answer: for lifting water without an electric motor
Correct Answer: half the width
Correct Answer: All the above.
Correct Answer: Frode number
Correct Answer: 4°
Correct Answer: Idukki dam.
Correct Answer: 4.0 m.
Correct Answer: atmospheric pressure
Correct Answer: all the above.
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