Discussion
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- Question
The velocity distribution of viscous fluid through a circular/pipe is :
Options- A. hyperbolic
- B. circular
- C. parabolic
- D. elliptical.
- Correct Answer
- parabolic
- 1. Kinematic viscosity of liquids by equation
is determined by :
Options- A. Redwood viscometer
- B. Engler viscometer
- C. Saybolt universal viscometer
- D. None of these. Discuss
- 2. For the most economical trapezoidal open channel,
Options- A. half of the top width must be equal to one of the sloping sides
- B. the hydraulic mean depth must be equal to half the depth of flow
- C. the semicircle drawn with top width as diameter must touch the three sides of the channel
- D. All of these. Discuss
- 3. Mercury is generally used in barometers because
Options- A. its vaour pressure is practically zero
- B. the height of the barometer will be less
- C. it is a best liquid
- D. both (a) and (b) above
- E. both (b) and (c) above. Discuss
- 4. The ratio of the percentagge error in the discharge and percentage error in the measurement of head over a triangular notch, is
Options- A. 2/3
- B. 3/2
- C. 2/5
- D. 5/2 Discuss
- 5. Liquids
Options- A. cannot be compressed
- B. do not occupy definite shape
- C. are not affected by change in pressure and temperature
- D. none of these. Discuss
- 6. 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
- 7. 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
- 8. The best side slope for most economical trapezoidal section, is
Options- A. 30°
- B. 45°
- C. 60°
- D. None of these. Discuss
- 9. In an open tube, free surface of mercury remains
Options- A. horizontal
- B. curved upwards
- C. curved downwards
- D. none of these. Discuss
- 10. 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
Hydraulics problems
Search Results
Correct Answer: Saybolt universal viscometer
Correct Answer: All of these.
Correct Answer: both (a) and (b) above
Correct Answer: 5/2
Correct Answer: do not occupy definite shape
Correct Answer: 22.5 m3
Correct Answer: Froude number
Correct Answer: 60°
Correct Answer: curved downwards
Correct Answer: pressure is due to weir in the channel
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