Discussion
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- Question
Schedule number of a pipe, which is a measure of its wall thickness, is given by
Options- A. 1000 P'/S
- B. 100 P'/S
- C. 1000 S/P'
- D. 10000 P'/S
- Correct Answer
- 1000 P'/S
- 1. Which of the following denotes the effect of compressibility in fluid flow?
Options- A. Weber number
- B. Mach number
- C. Euler number
- D. Reynolds number Discuss
- 2. The dimension of dynamic viscosity is
Options- A. ML-1T-1
- B. L2T-1
- C. LT-2
- D. ML-1T-2 Discuss
- 3. Nominal size of the discharge pipe of a pump is usually __________ the nominal size of the inlet pipe.
Options- A. smaller than
- B. larger than
- C. same as
- D. twice Discuss
- 4. A Bingham fluid of viscosity ? = 10 Pa.s and yield stress, ?0 = 10 KPa, is shared between flat parallel plates separated by a distance of 10-3 m. The top plate is moving with a velocity of 1 m/s. The shear stress on the plate is
Options- A. 10 KPa
- B. 20 KPa
- C. 30 KPa
- D. 40 KPa Discuss
- 5. __________ pumps are axial flow pumps.
Options- A. Turbine
- B. Propeller
- C. Diffuser
- D. none of these Discuss
- 6. Which of the following is not a dimension-less parameter?
Options- A. Euler number
- B. Specific gravity
- C. Fanning friction factor
- D. None of these Discuss
- 7. Dimension of surface tension is(where, F = force, L = length)
Options- A. FL-1
- B. F-1 . L
- C. F.L-2
- D. F-2 . L Discuss
- 8. In fluid flow, cavitation is caused, if the
Options- A. fluid velocity decreases to zero.
- B. total energy decreases.
- C. both (a) and (b).
- D. flow pressure approaches its vapor pressure at the prevailing temperature. Discuss
- 9. Head developed by a centrifugal pump depends on its
Options- A. speed
- B. impeller diameter
- C. both (a) and (b)
- D. neither (a) nor (b) Discuss
- 10. All pipes of a particular nominal size have the same
Options- A. inside diameter
- B. outside diameter
- C. thickness
- D. none of these Discuss
Fluid Mechanics problems
Search Results
Correct Answer: Mach number
Correct Answer: ML-1T-1
Correct Answer: smaller than
Correct Answer: 20 KPa
Correct Answer: Propeller
Correct Answer: None of these
Correct Answer: FL-1
Correct Answer: flow pressure approaches its vapor pressure at the prevailing temperature.
Correct Answer: both (a) and (b)
Correct Answer: outside diameter
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