Discussion
Home ‣ Mechanical Engineering ‣ Hydraulics and Fluid Mechanics Comments
- Question
The liquid used in manometers should have
Options- A. low density
- B. high density
- C. low surface tension
- D. high surface tension
- Correct Answer
- high surface tension
- 1. For a perfect incompressible liquid, flowing in a continuous stream, the total energy of a particle remains the same, while the particle moves from one point to another. This statement is called
Options- A. continuity equation
- B. Bernoulli's equation
- C. Pascal's law
- D. Archimede's principle Discuss
- 2. The buoyancy depends upon the
Options- A. weight of the liquid displaced
- B. pressure with which the liquid is displaced
- C. viscosity of the liquid
- D. compressibility of the liquid Discuss
- 3. When the coefficient of discharge (Cd) is 0.623, then the general equation for discharge over a rectangular weir is
Options- A. 1.84(L - 0.1nH)H3/2
- B. 1.84(L - nH)H2
- C. 1.84(L - 0.1nH)H5/2
- D. 1.84(L - nH)H3 Discuss
- 4. The water hammer in pipes occurs due to sudden change in the velocity of flowing liquid
Options- A. Agree
- B. Disagree Discuss
- 5. Water is __________ liquid.
Options- A. a compressible
- B. an incompressible Discuss
- 6. The hydraulic gradient line lies over the centre line of the pipe by an amount equal to the
Options- A. pressure head
- B. velocity head
- C. pressure head + velocity head
- D. pressure head - velocity head Discuss
- 7. The viscosity of a liquid __________ its rate of flow through a hole in a vessel.
Options- A. effects
- B. does not effect Discuss
- 8. When the pressure intensity at a point is more than the local atmospheric pressure, then the difference of these two pressures is called
Options- A. gauge pressure
- B. absolute pressure
- C. positive gauge pressure
- D. vacuum pressure Discuss
- 9. When a body is placed over a liquid, it will float if
Options- A. gravitational force is equal to the upthrust of the liquid
- B. gravitational force is less than the upthrust of the liquid
- C. gravitational force is more than the upthrust of the liquid
- D. none of the above Discuss
- 10. The formula for discharge over a sharp-crested weir and Ogee weir is same as that of a rectangular weir
Options- A. Agree
- B. Disagree Discuss
Hydraulics and Fluid Mechanics problems
Search Results
Correct Answer: Bernoulli's equation
Correct Answer: weight of the liquid displaced
Correct Answer: 1.84(L - 0.1nH)H3/2
Correct Answer: Agree
Correct Answer: an incompressible
Correct Answer: pressure head
Correct Answer: effects
Correct Answer: positive gauge pressure
Correct Answer: gravitational force is equal to the upthrust of the liquid
Correct Answer: Agree
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