Discussion
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- Question
If the value of coefficient of discharge increases, the discharge through the orifice decreases.
Options- A. True
- B. False
- Correct Answer
- False
- 1. Falling drops of water become spheres due to the property of
Options- A. surface tension of water
- B. compressibility of water
- C. capillarity of water
- D. viscosity of water Discuss
- 2. Water is a __________ fluid.
Options- A. real
- B. ideal
- C. newtonian
- D. non-newtonian Discuss
- 3. The kinematic viscosity of an oil (in stokes) whose specific gravity is 0.95 and viscosity 0.011 poise, is
Options- A. 0.0116 stoke
- B. 0.116 stoke
- C. 0.0611 stoke
- D. 0.611 stoke Discuss
- 4. According to Bazin, the coefficient of discharge varies with the height of water over the sill of a weir.
Options- A. Correct
- B. Incorrect Discuss
- 5. The vacuum pressure can be measured with the help of a piezometer tube.
Options- A. True
- B. False Discuss
- 6. The torque required to overcome viscous resistance of a footstep bearing is (where ? = Viscosity of the oil, N = Speed of the shaft, R = Radius of the shaft, and t = Thickness of the oil film)
Options- A.
- B.
- C.
- D.
Discuss
- 7. A closed tank is completely filled with an oil. If it is made to move with a horizontal acceleration, then the pressure at the back end will be more than that at the front end.
Options- A. Correct
- B. Incorrect Discuss
- 8. The pressure of the liquid flowing through the divergent portion of a venturimeter
Options- A. remains constant
- B. increases
- C. decreases
- D. depends upon mass of liquid Discuss
- 9. When the Mach number is between __________ the flow is called super-sonic flow.
Options- A. 1 and 2.5
- B. 2.5 and 4
- C. 4 and 6
- D. 1 and 6 Discuss
- 10. A manometer is used to measure
Options- A. atmospneric pressure
- B. pressure in pipes and channels
- C. pressure in venturimeter
- D. difference of pressures between two points in a pipe Discuss
Hydraulics and Fluid Mechanics problems
Search Results
Correct Answer: surface tension of water
Correct Answer: newtonian
Correct Answer: 0.0116 stoke
Correct Answer: Correct
Correct Answer: False
Correct Answer:
Correct Answer: Correct
Correct Answer: decreases
Correct Answer: 1 and 6
Correct Answer: pressure in pipes and channels
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