Discussion
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- Question
Fluids change the volume under external presssure due to
Options- A. plasticity
- B. viscosity
- C. compressibility
- D. none of these.
- Correct Answer
- compressibility
- 1. Cappoletti weir is a
Options- A. rectangular weir whose length is kept 3 times the height of the water above sill
- B. triangular weir whose notch angle is 90°
- C. trapezoidal weir, whose sides slope 1 horizontal to 2 verticals
- D. a combination of rectangular and triangular weirs. Discuss
- 2. Specific weight of liquid
Options- A. remains constant at every place
- B. does not remain constant at every place
- C. varies from place to place on the earth
- D. does not vary on any other planet. Discuss
- 3. Power transmitted through a pipe is maximum when friction head loss, is
Options- A. one-half of the total head supplied
- B. one-third of the total head supplied
- C. one-fouth of the total head supplied
- D. equal to the total head supplied. Discuss
- 4. In Chezy's formula V = C mi
Options- A. V is the mean velocity of flow
- B. m is the hydraulic mean depth
- C. i is the loss of head per unit length of pipe
- D. All the above. Discuss
- 5. Dimensions of the dynamic viscosity (?) are
Options- A. MLT-2
- B. M-1L-1T-1
- C. ML-1T-2
- D. ML-1T-1. Discuss
- 6. The value of momentum correction factor (?) for a laminar flow through a circular pipe, is
Options- A. 1/2
- B. 2/3
- C. 3/4
- D. 4/3
- E. 3/2 Discuss
- 7. For maximum horse power of a nozzle, the head supplied must be equal to
Options- A. head loss in the pipe due to friction
- B. twice the head loss in the pipe due to friction
- C. thrice the head loss in the pipe due to friction
- D. four times the head loss in the pipe due to friction. Discuss
- 8. The dimensionless parameter not applicable to flowing liquids, is
Options- A. Reynold number
- B. Weber number
- C. Pressure coefficient
- D. Kinematic viscosity
- E. Friction factor. Discuss
- 9. A floating body attains stable equilibrium if its metacentre is
Options- A. at the centroid
- B. above the centroid
- C. below the centroid
- D. anywhere. Discuss
- 10. For critical flow, the Froude number is :
Options- A. 1.0
- B. less than 1.0
- C. more than 1.0
- D. 2 Discuss
Hydraulics problems
Search Results
Correct Answer: trapezoidal weir, whose sides slope 1 horizontal to 2 verticals
Correct Answer: does not vary on any other planet.
Correct Answer: one-third of the total head supplied
Correct Answer: All the above.
Correct Answer: ML-1T-1.
Correct Answer: 4/3
Correct Answer: thrice the head loss in the pipe due to friction
Correct Answer: Kinematic viscosity
Correct Answer: above the centroid
Correct Answer: 1.0
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