Discussion
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- Question
A venturiflume is used to measure
Options- A. pressure of liquid
- B. discharge of liquid
- C. pressure difference between two points in a channel
- D. pressure difference between two points in a pipe
- Correct Answer
- discharge of liquid
- 1. The flow in a pipe or channel is said to be non-uniform when
Options- A. the liquid particles at all sections 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 Discuss
- 2. The total pressure on an immersed surface inclined at an angle ? with the liquid surface is
Options- A. wA
- B. wx
- C. wAx
- D. wAx/sin ? Discuss
- 3. The power absorbed (in watts) in overcoming the viscous resistance of a footstep bearing is
Options- A.
- B.
- C.
- D.
Discuss
- 4. A fluid whose viscosity does not change with the rate of deformation or shear strain is known as
Options- A. real fluid
- B. ideal fluid
- C. newtonian fluid
- D. non-newtonian fluid Discuss
- 5. A submerged body is said to be in a stable equilibrium, if its centre of gravity __________ the centre of buoyancy.
Options- A. coincides with
- B. lies below
- C. lies above Discuss
- 6. The pressure measured with the help of a pressure gauge is called
Options- A. atmospheric pressure
- B. gauge pressure
- C. absolute pressure
- D. mean pressure Discuss
- 7. The velocity at which the flow changes from laminar flow to turbulent flow is called
Options- A. critical velocity
- B. velocity of approach
- C. sub-sonic velocity
- D. super-sonic velocity Discuss
- 8. A flow is called hyper-sonic, if the Mach number is
Options- A. less than unity
- B. unity
- C. between 1 and 6
- D. none of these Discuss
- 9. Reynold's number is the ratio of the inertia force to the
Options- A. surface tension force
- B. viscous force
- C. gravity force
- D. elastic force Discuss
- 10. A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is
Options- A. 0.46
- B. 0.64
- C. 0.78
- D. 0.87 Discuss
Hydraulics and Fluid Mechanics problems
Search Results
Correct Answer: the liquid particles at different sections have different velocities
Correct Answer: wAx
Correct Answer:
Correct Answer: newtonian fluid
Correct Answer: lies below
Correct Answer: gauge pressure
Correct Answer: critical velocity
Correct Answer: none of these
Correct Answer: viscous force
Correct Answer: 0.64
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