3 Questions
Which instrument is used for measuring the static pressure exerted on the wall by a fluid flowing parallel to the wall in a pipeline?
Manometer
Which pump is the most suitable device for discharging a liquid against a pressure of ≥ 1500 kgf/cm2?
Reciprocating pump
When a 2" gate valve fitted in a pipe is replaced by a similar globe valve, what happens to the pressure drop?
It increases
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.
Test your knowledge on fluid mechanics with these questions about measuring static pressure, suitable pumps for high pressure, and fluidisation of glass spheres with water.
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