Discussion
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- Question
The ratio of frictional factor and coefficient of friction used in general equation for a head loss in a pipe, is
Options- A. 1
- B. 2
- C. 3
- D. 4
- Correct Answer
- 4
- 1. When no air is left below the nappe and water stream adheres to the down stream face of the weir, it is known as
Options- A. free nappe
- B. depressed nappe
- C. clinging nappe
- D. none of these. Discuss
- 2. The rise of the liquid along the walls of a revolving cylinder above the initial level, is
Options- A. greater than the depression of the liquid at the axis of rotation
- B. lesser than the depression of the liquid at the axis of rotation
- C. the same as the depression of the liquid at the axis of rotation
- D. none of these. Discuss
- 3. Piezometers 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. Discuss
- 4. The specific weight of water is 1000 kg/m3
Options- A. at normal pressure of 760 mm
- B. at 4°C temperature
- C. at mean sea level
- D. all the above. Discuss
- 5. If Cv, Cc, Cd and Cr are the hydraulic coefficients of an orifice, then
Options- A. Cd = Cc . Cv
- B. Cr = 1 + Cv2/Cd
- C. Cv = Cc + Cd
- D. Cc = Cv/Cd Discuss
- 6. Most economical section of a triangular channel, is
Options- A. equilateral triangle
- B. right angled triangle
- C. isosceles triangle with 45° vertex angle
- D. right angled triangle with equal sides. Discuss
- 7. Dimensions of the dynamic viscosity (?) are
Options- A. MLT-2
- B. M-1L-1T-1
- C. ML-1T-2
- D. ML-1T-1. Discuss
- 8. 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
- 9. 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
- 10. 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
Hydraulics problems
Search Results
Correct Answer: clinging nappe
Correct Answer: the same as the depression of the liquid at the axis of rotation
Correct Answer: very low pressure.
Correct Answer: all the above.
Correct Answer: Cd = Cc . Cv
Correct Answer: right angled triangle with equal sides.
Correct Answer: ML-1T-1.
Correct Answer: All the above.
Correct Answer: one-third of the total head supplied
Correct Answer: does not vary on any other planet.
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