Discussion
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- Question
The flow in a pipe or channel is said to be uniform when
Options- A. the liquid particles at all sectons have the same velocities
- B. the liquid particles at different sections have different velocities
- C. the quantity of liquid flowing per second is constant
- D. each liquid particle has a definite path
- Correct Answer
- the liquid particles at all sectons have the same velocities
- 1. Coefficient of discharge Cd is equal to (where Cc = Coefficient of contraction, Cv = Coefficient of velocity, and Cr = Coefficient of resistance)
Options- A. Cc x Cv
- B. Cc x Cr
- C. Cv x Cr
- D. Cc/Cr Discuss
- 2. The pressure of fluid due to hammer blow is
Options- A. directly proportional to density of fluid
- B. inversely proportional to density of fluid
- C. directly proportional to (density)1/2 of fluid
- D. inversely proportional to (density)1/2 of fluid Discuss
- 3. When a liquid is flowing through a pipe, the velocity of the liquid is
Options- A. maximum at the centre and minimum near the walls
- B. minimum at the centre and maximum near the walls
- C. zero at the centre and maximum near the walls
- D. maximum at the centre and zero near the walls Discuss
- 4. Select the wrong statement
Options- A. An equivalent pipe is treated as an ordinary pipe for all calculations
- B. The length of an equivalent pipe is equal to that of a compound pipe
- C. The discharge through an equivalent pipe is equal to that of a compound pipe
- D. The diameter of an equivalent pipe is equal to that of a compound pipe Discuss
- 5. A structure used to dam up a stream or river over which the water flows is called
Options- A. orifice
- B. notch
- C. weir
- D. dam Discuss
- 6. The depth of centre of pressure lor an immersed surface inclined at an angle ? with the liquid surface lies at a distance equal to __________ the centre of gravity.
Options- A.
below - B. above
- C.
below - D. above
Discuss
- 7. The length of a liquid stream while flowing over a weir __________ at the ends of the sill.
Options- A. expands
- B. does not change
- C. contracts Discuss
- 8. The value of coefficient of velocity for a sharp edged orifice __________ with the head of water.
Options- A. decreases
- B. increases Discuss
- 9. A flow through an expanding tube at constant rate is called
Options- A. steady uniform flow
- B. steady non-uniform flow
- C. unsteady uniform flow
- D. unsteady non-uniform flow Discuss
- 10. When a body is placed over a liquid, it is subjected to gravitational force and upthrust of the liquid.
Options- A. True
- B. False Discuss
Hydraulics and Fluid Mechanics problems
Search Results
Correct Answer: Cc x Cv
Correct Answer: directly proportional to (density)1/2 of fluid
Correct Answer: maximum at the centre and minimum near the walls
Correct Answer: The diameter of an equivalent pipe is equal to that of a compound pipe
Correct Answer: weir
Correct Answer:
below Correct Answer: contracts
Correct Answer: increases
Correct Answer: steady non-uniform flow
Correct Answer: True
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