Discussion
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- Question
When the Mach number is less than unity, the flow is called
Options- A. sub-sonic flow
- B. sonic flow
- C. super-sonic flow
- D. hyper-sonic flow
- Correct Answer
- sub-sonic flow
- 1. The hydraulic mean depth for a circular pipe of diameter (d) is
Options- A. d/6
- B. d/4
- C. d/2
- D. d Discuss
- 2. The tangential velocity of the water element having a free vortex is
Options- A. directly proportional to its distance from the centre
- B. inversely proportional to its distance from the centre
- C. directly proportional to its (distance)2 from the centre
- D. inversely proportional to its (distance)2 from the centre Discuss
- 3. 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
- 4. 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
- 5. 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
- 6. A uniform body 3 m long, 2 m wide and 1 m deep floats in water. If the depth of immersion is 0.6 m, then the weight of the body is
Options- A. 3.53 kN
- B. 33.3 kN
- C. 35.3 kN
- D. none of these Discuss
- 7. When the water level on the downstream side of a weir is above the top surface of a weir, the weir is known as
Options- A. narrow-crested weir
- B. broad-crested weir
- C. Ogee weir
- D. submerged weir Discuss
- 8. The hydraulic mean depth or the hydraulic radius is the ratio of
Options- A. area of flow and wetted perimeter
- B. wetted perimeter and diameter of pipe
- C. velocity of flow and area of flow
- D. none of these Discuss
- 9. The Cippoletti weir is a __________ weir.
Options- A. rectangular
- B. triangular
- C. trapezoidal
- D. circular Discuss
- 10. One poise is equal to
Options- A. 0.1 N-s/m2
- B. 1 N-s/m2
- C. 10 N-s/m2
- D. 100 N-s/m2 Discuss
Hydraulics and Fluid Mechanics problems
Search Results
Correct Answer: d/4
Correct Answer: inversely proportional to its distance from the centre
Correct Answer: Agree
Correct Answer: gravitational force is equal to the upthrust of the liquid
Correct Answer: positive gauge pressure
Correct Answer: 35.3 kN
Correct Answer: submerged weir
Correct Answer: area of flow and wetted perimeter
Correct Answer: trapezoidal
Correct Answer: 0.1 N-s/m2
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