Which flow measurement technique is based on the principle of fluid displacement?
A. Electromagnetic flow meter
B. Positive displacement flow meter
C. Ultrasonic flow meter
D. Coriolis flow meter
Answer:B
Which flow measurement technique is based on the principle of fluid displacement?
A. Electromagnetic flow meter B. Positive displacement flow meter C. Ultrasonic flow meter D. Coriolis flow meter
Explanation: Positive displacement flow meters measure fluid flow by dividing the fluid into fixed, known volumes and counting the number of times these volumes are displaced to measure the flow rate.