What is a positive displacement meter used for?

Positive displacement (PD) flow meters measure the volumetric flow rate of a moving fluid or gas by dividing the media into fixed, metered volumes (finite increments or volumes of the fluid).

What are the advantages of positive displacement flow meters over inferential flow meters?

Advantages of positive displacement meters Low maintenance, long life. Accuracy not affected by the upstream conditions. It requires very little straight upstream piping. Little sensitive to uneven flow distribution across the area of the pipe, it does not matter the flow is pulsing.

Is positive displacement meter used for measurement of flow?

Positive Displacement flow meters are the only flow measuring technology to directly measure the volume of fluid that passes though the flow meter. It achieves this by trapping pockets of fluid between rotating components housed within a high precision chamber.

Which of the following can be a example for positive displacement meter?

Rotary piston meter is a positive displacement meter.

Which of the following is a positive displacement device?

Positive displacement pumps include gear pumps, piston pumps, plunger pumps, and progressing cavity pumps. All PD pumps have in common the fact that they are volumetric devices in which a fixed volume of fluid is drawn into the pump, pressurized, and discharged at high pressure into the line.

Which is an example of positive displacement flow meter Mcq?

Which flow measurement device is used to measure the air flow rate Mcq?

Flow Measurement MCQ Question 7 Detailed Solution

Device Measure
Anemometer The velocity of air and gas
Nozzle meter Discharge/Flow rate
Rotameter Discharge
Wier and Notches Discharge