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- Question
If total head available at the inlet of pipe and f1 is the loss of head due to friction in the pipe, the maximum efficiency of transmission of power (?max) is
Options- A. 1/2
- B. 2/3
- C. 3/4
- D. 4/5
- Correct Answer
- 2/3
- 1. Back water curve is caused if
Options- A. friction head loss is more than the bed slope
- B. pressure is due to weir in the channel
- C. there is an increase in width of the channel
- D. none of these. Discuss
- 2. In an open tube, free surface of mercury remains
Options- A. horizontal
- B. curved upwards
- C. curved downwards
- D. none of these. Discuss
- 3. The best side slope for most economical trapezoidal section, is
Options- A. 30°
- B. 45°
- C. 60°
- D. None of these. Discuss
- 4. If the forces are due to inertia and gravity, and frictional resistance plays only a minor role, the design of the channels is made by comparing
Options- A. Reynold number
- B. Froude number
- C. Weber number
- D. Mach number. Discuss
- 5. Water displaced by a floating wooden block of density 0.75, 5 m long, 2 m wide and 3 m high, is
Options- A. 17.5 m3
- B. 20.0 m3
- C. 22.5 m3
- D. 25 km3. Discuss
- 6. Manometers 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
- 7. Discharge over an ogee weir remains the same as that of
Options- A. sharp crested weir
- B. triangular weir
- C. cippoletti weir
- D. drowned weir. Discuss
- 8. An error of 1% in measuring the head of water over the crest of a triangular notch, produces an error in the discharge which is equal to
Options- A. 1.25%
- B. 1.5%
- C. 2.0%.
- D. 2.5% Discuss
- 9. The following is not a laminar flow
Options- A. Flow of oil in measuring instruments
- B. Flow in beds in ground water
- C. Rise of water in plants through roots
- D. Flow of blood in the arteries of human body
- E. Flow in water pipe lines. Discuss
- 10. Which one of the following equation is applicable to unsteady flow in open channels :
Options- A.
- B.
- C.
- D.
Discuss
Hydraulics problems
Search Results
Correct Answer: pressure is due to weir in the channel
Correct Answer: curved downwards
Correct Answer: 60°
Correct Answer: Froude number
Correct Answer: 22.5 m3
Correct Answer: pressure in water channels, pipes etc.
Correct Answer: cippoletti weir
Correct Answer: 2.5%
Correct Answer: Flow in water pipe lines.
Correct Answer:
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