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Questions and Answers
Which instrument is used for measuring the static pressure exerted on the wall by a fluid flowing parallel to the wall in a pipeline?
Which instrument is used for measuring the static pressure exerted on the wall by a fluid flowing parallel to the wall in a pipeline?
- Thermometer
- Hydrometer
- Manometer (correct)
- Barometer
Which pump is the most suitable device for discharging a liquid against a pressure of ≥ 1500 kgf/cm2?
Which pump is the most suitable device for discharging a liquid against a pressure of ≥ 1500 kgf/cm2?
- Diaphragm pump
- Gear pump
- Reciprocating pump (correct)
- Centrifugal pump
When a 2" gate valve fitted in a pipe is replaced by a similar globe valve, what happens to the pressure drop?
When a 2" gate valve fitted in a pipe is replaced by a similar globe valve, what happens to the pressure drop?
- It increases (correct)
- It is impossible to determine
- It decreases
- It remains the same
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Study Notes
Key Facts about Fluid Mechanics and Pressure Measurement
- Static pressure exerted by a fluid flowing parallel to a wall in a pipeline can be measured using a specific device.
- A certain type of pump is recommended for discharging a liquid against a pressure of 1500 kgf/cm2 or higher.
- A bed made of small glass spheres with a density of 2500 kg/m3 is to be fluidized by water with a density of 1000 kg/m3.
- At the point of incipient fluidization, the bed has a voidage (percentage of empty space) of 40%.
- The pressure drop across the bed during fluidization is 10 units (unspecified unit of measurement).
- A 2" gate valve in a pipe is replaced with a similar globe valve.
- The pressure drop across the gate valve before replacement is denoted as Δp (unspecified value).
- The pressure drop across the globe valve, for the same discharge, is different from the pressure drop across the gate valve.
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