Discussion
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- Question
For a most economical trapezoidal open channel, the half of the top width must be equal to
Options- A. the bed width
- B. one sloping side
- C. the depth of flow
- D. None of these.
- Correct Answer
- one sloping side
- 1. A stepped notch is a combination of
Options- A. rectangular notches of different sizes
- B. triangular notches of different sizes
- C. rectangular and triangular notches
- D. all the above. Discuss
- 2. In steady flow, which one of the following changes with time
Options- A. velocity
- B. pressure
- C. density
- D. none of these. Discuss
- 3. The unit of the viscosity is
Options- A. kg sec/m2
- B. Newton sec per m2
- C. Newton-sec2/m3
- D. m2 per sec. Discuss
- 4. In a two dimensional flow if the components of the velocity are u = ax ; v = by, the point where no motion occurs, is known as
Options- A. critical point
- B. neutral point
- C. stagnation point
- D. stationary point
- E. none of these. Discuss
- 5. An orifice is called a large orifice if water head, is
Options- A. twice the diameter of the orifice
- B. thrice the diameter of the orifice
- C. four times the diameter of the orifice
- D. five times the diameter of the orifice. Discuss
- 6. The shape of fire hose nozzle is generally kept
Options- A. divergent
- B. convergent
- C. convergent divergent
- D. cylindrical. Discuss
- 7. The line joining the points to which the liquid rises in vertical piezometer tubes fitted at different cross-sections of a conduit, is known as
Options- A. hydraulic gradient
- B. piezometric line
- C. pressure grade line
- D. hydraulic grade line
- E. all the above. Discuss
- 8. The imaginary line drawn such that the tangents at its all points indicate the direction of the velocity of the fluid particles at each point, is called
Options- A. path line
- B. stream line
- C. potential line
- D. streak line. Discuss
- 9. The most efficient channel section, is
Options- A. semi-circular
- B. rectangular
- C. triangular
- D. half hexagon in the form of trapezoid. Discuss
- 10. An open container filled with water is moved vertically downward with a uniform linear acceleration. The pressure at its bottom will be
Options- A. greater than static pressure
- B. equal to static pressure
- C. lesser than static pressure
- D. none of these. Discuss
Hydraulics problems
Search Results
Correct Answer: rectangular notches of different sizes
Correct Answer: none of these.
Correct Answer: Newton sec per m2
Correct Answer: stagnation point
Correct Answer: five times the diameter of the orifice.
Correct Answer: convergent
Correct Answer: all the above.
Correct Answer: stream line
Correct Answer: half hexagon in the form of trapezoid.
Correct Answer: lesser than static pressure
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