Discussion
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- Question
When a body, floating in a liquid, is given a small angular displacement, it starts oscillating about a point known as
Options- A. centre of pressure
- B. centre of gravity
- C. centre of buoyancy
- D. metacentre
- Correct Answer
- metacentre
- 1. The most efficient section of a channel is
Options- A. triangular
- B. rectangular
- C. square
- D. trapezoidal Discuss
- 2. The sheet of water flowing over a notch or a weir is known as
Options- A. sill or crest
- B. nappe or vein
- C. orifice
- D. none of these Discuss
- 3. The height of a water column equivalent to a pressure of 0.15 MPa is
Options- A. 15.3 m
- B. 25.3 m
- C. 35.3 m
- D. 45.3 m Discuss
- 4. The flow at critical depth in an open channel is called torrential flow.
Options- A. Yes
- B. No Discuss
- 5. The dynamic viscosity of the liquid __________ with rise in temperature.
Options- A. remain unaffected
- B. increases
- C. decreases Discuss
- 6. A flow in which the quantity of liquid flowing per second is not constant, is called
Options- A. streamline flow
- B. turbulent flow
- C. steady flow
- D. unsteady flow Discuss
- 7. The force per unit length is the unit of
Options- A. surface tension
- B. compressibility
- C. capillarity
- D. viscosity Discuss
- 8. In the manufacturing of lead shots, the property of surface tension is utilised.
Options- A. Agree
- B. Disagree Discuss
- 9. In a convergent mouthpiece, the absolute pressure head at vena contracta is the same as that of the atmosphere.
Options- A. True
- B. False Discuss
- 10. In a broad-crested weir, the discharge is maximum if the head of water on the downstream side of weir is __________ the head of water on the upstream side of weir.
Options- A. equal to
- B. one-third
- C. two-third
- D. three-fourth Discuss
Hydraulics and Fluid Mechanics problems
Search Results
Correct Answer: trapezoidal
Correct Answer: nappe or vein
Correct Answer: 15.3 m
Correct Answer: No
Correct Answer: decreases
Correct Answer: unsteady flow
Correct Answer: surface tension
Correct Answer: Agree
Correct Answer: True
Correct Answer: two-third
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