Discussion
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- Question
The coefficient of discharge for an external mouthpiece is
Options- A. 0.375
- B. 0.5
- C. 0.707
- D. 0.855
- Correct Answer
- 0.855
- 1. The Reynold's number of a ship is __________ to its velocity and length.
Options- A. directly proportional
- B. inversely proportional Discuss
- 2. 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
- 3. The pressure less than atmospheric pressure is known as
Options- A. suction pressure
- B. vacuum pressure
- C. negative gauge pressure
- D. all of these Discuss
- 4. 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
- 5. 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
- 6. In a venturimeter, the velocity of liquid at throat is __________ than at inlet.
Options- A. higher
- B. lower Discuss
- 7. 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
- 8. Coefficient of contraction is the ratio of
Options- A. actual velocity of jet at vena contracta to the theoretical velocity
- B. loss of head in the orifice to the head of water available at the exit of the orifice
- C. actual discharge through an orifice to the theoretical discharge
- D. area of jet at vena contracta to the area of orifice Discuss
- 9. If a body floating in a liquid returns back to its original position, when given a small angular displacement, the body is said to be in
Options- A. neutral equilibrium
- B. stable equilibrium
- C. unstable equilibrium
- D. none of these Discuss
- 10. The power transmitted through a pipe is (where w = Specific weight in N/m3, and Q = Discharge in m3/s)
Options- A. w x Q x H
- B. w x Q x hf
- C. w x Q (H - hf)
- D. w x Q (H + hf) Discuss
Hydraulics and Fluid Mechanics problems
Search Results
Correct Answer: directly proportional
Correct Answer: Mach number
Correct Answer: all of these
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: higher
Correct Answer: 16/RN
Correct Answer: area of jet at vena contracta to the area of orifice
Correct Answer: stable equilibrium
Correct Answer: w x Q (H - hf)
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