Hydraulics and Fluid Mechanics problems
- 1. In a lockgate, the reaction between two gates is (where P = Resultant pressure on the lock gate, and ? = Inclination of the gate with the normal to the side of the lock)
Options- A.
- B.
- C. P / 2sin?
- D.
Discuss
Correct Answer: P / 2sin?
- 2. Newton's law of viscosity is a relationship between
Options- A. pressure, velocity and temperature
- B. shear stress and rate of shear strain
- C. shear stress and velocity
- D. rate of shear strain and temperature Discuss
Correct Answer: shear stress and rate of shear strain
- 3. The property of a liquid which offers resistance to the movement of one layer of liquid over another adjacent layer of liquid, is called
Options- A. surface tension
- B. compressibility
- C. capillarity
- D. viscosity Discuss
Correct Answer: viscosity
- 4. In a sharp-crested weir, the thickness of the weir is kept less than half of the height of water above the crest of the weir.
Options- A. True
- B. False Discuss
Correct Answer: True
- 5. A flow is called super-sonic if the
Options- A. velocity of flow is very high
- B. discharge is difficult to measure
- C. Mach number is between 1and 6
- D. none of these Discuss
Correct Answer: Mach number is between 1and 6
- 6. When the venturimeter is inclined, then for a given flow it will show __________ reading.
Options- A. same
- B. more
- C. less Discuss
Correct Answer: same
- 7. The specific weight is also known as weight density.
Options- A. Correct
- B. Incorrect Discuss
Correct Answer: Correct
- 8. The specific weight of compressible fluids does not remain constant.
Options- A. True
- B. False Discuss
Correct Answer: True
- 9. The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.
Options- A. plus
- B. minus Discuss
Correct Answer: plus
- 10. A flow in which the quantity of liquid flowing per second is constant, is called __________ flow.
Options- A. steady
- B. streamline
- C. turbulent
- D. unsteady Discuss
Correct Answer: steady
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