Discussion
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- Question
A particle A of diameter 10 microns settles in an oil of specific gravity 0.9 and viscosity 10 poise under Stoke's law. A particle B with diameter 20 microns settling in the same oil will have a settling velocity
Options- A. same as that of A.
- B. one fourth as that of A.
- C. twice as that of A.
- D. four times as that of A.
- Correct Answer
- one fourth as that of A.
- 1. When the momentum of one fluid is used for moving another fluid, such a device is called a/an
Options- A. jet pump
- B. blower
- C. acid egg
- D. none of these Discuss
- 2. Maximum theoretical suction lift for water at 15°C by a centrifugal pump is 34 ft. The same for water at 90°C will be __________ ft.
Options- A. 40
- B. 34
- C. 8
- D. 37 Discuss
- 3. What is the normal range of exit cone angle of a venturimeter?
Options- A. 2 to 5
- B. 7 to 15
- C. 15 to 25
- D. >25 Discuss
- 4. The resistance wire used in a hot wire anemometer for conducting electrical current is made of
Options- A. copper
- B. tungsten
- C. chromium
- D. aluminium Discuss
- 5. The pitot static tube does not measure the __________ pressure.
Options- A. static
- B. total
- C. difference in static & dynamic
- D. all (a), (b) and (c) Discuss
- 6. The normal stress is the same in all directions at a point in a fluid, when the fluid is
Options- A. non-viscous.
- B. incompressible.
- C. both (a) and (b).
- D. having no motion of one fluid layer relative to the other. Discuss
- 7. The maximum delivery pressure of compressors can be upto __________ atmospheres.
Options- A. 10
- B. 100
- C. 250
- D. 1000 Discuss
- 8. Molten soap mass is transported by a __________ pump.
Options- A. diaphragm
- B. reciprocating
- C. gear
- D. centrifugal Discuss
- 9. For the transfer of solution of thick slurry, the pump used is a __________ pump.
Options- A. reciprocating
- B. gear
- C. diaphragm
- D. centrifugal Discuss
- 10. The net positive suction head (NPSH) of a centrifugal pump is defined as the sum of the velocity head and the pressure head at the
Options- A. discharge.
- B. suction.
- C. suction minus vapor pressure of the liquid at suction temperature.
- D. discharge minus vapor pressure of the liquid at the discharge temperature. Discuss
Fluid Mechanics problems
Search Results
Correct Answer: jet pump
Correct Answer: 8
Correct Answer: 7 to 15
Correct Answer: tungsten
Correct Answer: all (a), (b) and (c)
Correct Answer: having no motion of one fluid layer relative to the other.
Correct Answer: 1000
Correct Answer: centrifugal
Correct Answer: diaphragm
Correct Answer: suction minus vapor pressure of the liquid at suction temperature.
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