Discussion
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- Question
In a convergent mouthpiece, the absolute pressure head at vena contracta is the same as that of the atmosphere.
Options- A. True
- B. False
- Correct Answer
- True
- 1. In the manufacturing of lead shots, the property of surface tension is utilised.
Options- A. Agree
- B. Disagree Discuss
- 2. The force per unit length is the unit of
Options- A. surface tension
- B. compressibility
- C. capillarity
- D. viscosity Discuss
- 3. 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
- 4. 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 Discuss
- 5. The most efficient section of a channel is
Options- A. triangular
- B. rectangular
- C. square
- D. trapezoidal Discuss
- 6. 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
- 7. When a cylindrical vessel containing liquid is revolved about its vertical axis at a constant angular velocity, the pressure
Options- A. varies as the square of the radial distance
- B. increases linearly as its radial distance
- C. increases as the square of the radial distance
- D. decreases as the square of the radial distance Discuss
- 8. The force present in a moving liquid is
Options- A. inertia force
- B. viscous force
- C. gravity force
- D. all of these Discuss
- 9. The velocity of the liquid flowing through the divergent portion of a venturimeter
Options- A. remains constant
- B. increases
- C. decreases
- D. depends upon mass of liquid Discuss
- 10. The mercury does not wet the glass. This is due to the property of the liquid known as
Options- A. cohesion
- B. adhesion
- C. viscosity
- D. surface tension Discuss
Hydraulics and Fluid Mechanics problems
Search Results
Correct Answer: Agree
Correct Answer: surface tension
Correct Answer: unsteady flow
Correct Answer: metacentre
Correct Answer: trapezoidal
Correct Answer: two-third
Correct Answer: varies as the square of the radial distance
Correct Answer: all of these
Correct Answer: decreases
Correct Answer: surface tension
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