Discussion
Home ‣ Mechanical Engineering ‣ Hydraulics and Fluid Mechanics Comments
- Question
The pressure less than atmospheric pressure is known as
Options- A. suction pressure
- B. vacuum pressure
- C. negative gauge pressure
- D. all of these
- Correct Answer
- all of these
- 1. An error of 1% in measuring head over the apex of the notch (H) will produce an error of __________ in discharge over a triangular notch.
Options- A. 1%
- B. 1.5%
- C. 2%
- D. 2.5% Discuss
- 2. Coefficient of resistance is the ratio of
Options- A. actual velocity of jet at vena contracta to the theoretical velocity
- B. area of jet at vena contracta to the area of orifice
- C. loss of head in the orifice to the head of water available at the exit of the orifice
- D. actual discharge through an orifice to the dieoretical discharge Discuss
- 3. A structure whose width is __________ the width of the channel, is called a flumed structure.
Options- A. less than
- B. more than Discuss
- 4. The maximum discharge over a broad crested weir is
Options- A. 0.384 Cd x L x H1/2
- B. 0.384 Cd x L x H3/2
- C. 1.71 Cd x L x H1/2
- D. 1.71 Cd x L x H3/2 Discuss
- 5. The diameter of the nozzle (d) for maximum transmission of power is given by (where D = Diameter of pipe, f = Darcy 's coefficient of friction for pipe, and l = Length of pipe )
Options- A.
- B.
- C.
- D.
Discuss
- 6. The value of bulk modulus of a fluid is required to determine
Options- A. Reynold's number
- B. Froude's number
- C. Mach number
- D. Euler's number Discuss
- 7. The Reynold's number of a ship is __________ to its velocity and length.
Options- A. directly proportional
- B. inversely proportional Discuss
- 8. The coefficient of discharge for an external mouthpiece is
Options- A. 0.375
- B. 0.5
- C. 0.707
- D. 0.855 Discuss
- 9. In a venturimeter, the velocity of liquid at throat is __________ than at inlet.
Options- A. higher
- B. lower Discuss
- 10. The loss of head due to friction in a pipe of uniform diameter in which a viscous flow is taking place, is (where RN = Reynold number)
Options- A. 1/RN
- B. 4/RN
- C. 16/RN
- D. 64/RN Discuss
Hydraulics and Fluid Mechanics problems
Search Results
Correct Answer: 2.5%
Correct Answer: loss of head in the orifice to the head of water available at the exit of the orifice
Correct Answer: less than
Correct Answer: 1.71 Cd x L x H3/2
Correct Answer:
Correct Answer: Mach number
Correct Answer: directly proportional
Correct Answer: 0.855
Correct Answer: higher
Correct Answer: 16/RN
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