What is the principle of operation for a turbine flow meter?
A. The pressure drop across an obstruction is proportional to the flow rate
B. The frequency of rotation of a turbine blade is proportional to the flow rate
C. The change in electrical resistance of a conductor is proportional to the flow rate
D. The change in magnetic field strength is proportional to the flow rate
Answer:B
What is the principle of operation for a turbine flow meter?
A. The pressure drop across an obstruction is proportional to the flow rate B. The frequency of rotation of a turbine blade is proportional to the flow rate C. The change in electrical resistance of a conductor is proportional to the flow rate D. The change in magnetic field strength is proportional to the flow rate
Explanation: In a turbine flow meter, a turbine with multiple blades is placed in the path of the fluid flow. The blades are designed to rotate in response to the fluid flow, and the frequency of rotation is proportional to the flow rate.