Propeller meters and turbine meters are ______ meters?

Propeller meters and turbine meters are ______ meters?

• A. Positive displacement
• B. Nutating disc
• C. Velocity
• D. Piston

Answer: (C)

Propeller meters and turbine meters are classified as velocity meters because they measure the speed of the water flowing through the meter. These devices operate on the principle that the flow of water will cause a propeller or turbine to rotate. The rotational speed of these components is directly related to the velocity of the water flow, allowing for the calculation of flow rate based on that speed. In velocity meters, the flow rate is determined by measuring the velocity of the fluid, which is essential for applications where accurate flow measurement is crucial. This type of meter is commonly used in water distribution systems due to its reliability and efficiency in providing continuous flow measurements. The other types mentioned, such as positive displacement meters, nutating disc meters, and piston meters, function differently by measuring the actual volume of water that passes through them, rather than the velocity. Thus, distinguishing the velocity measurement principle of propeller and turbine meters is key to understanding their function within water distribution systems.

Propeller meters and turbine meters are classified as velocity meters because they measure the speed of the water flowing through the meter. These devices operate on the principle that the flow of water will cause a propeller or turbine to rotate. The rotational speed of these components is directly related to the velocity of the water flow, allowing for the calculation of flow rate based on that speed.

In velocity meters, the flow rate is determined by measuring the velocity of the fluid, which is essential for applications where accurate flow measurement is crucial. This type of meter is commonly used in water distribution systems due to its reliability and efficiency in providing continuous flow measurements.

The other types mentioned, such as positive displacement meters, nutating disc meters, and piston meters, function differently by measuring the actual volume of water that passes through them, rather than the velocity. Thus, distinguishing the velocity measurement principle of propeller and turbine meters is key to understanding their function within water distribution systems.