Are "radial-vane," "concentric-vane," and "plunger" considered examples of the thermal type meter movement?

The classification of meter movements into thermal types typically refers to those that operate based on the thermal properties of the fluid or gas being measured. Radial-vane, concentric-vane, and plunger mechanisms are not included in this classification.

Radial-vane and concentric-vane mechanisms are primarily mechanical devices that utilize the movement of vanes in response to fluid flow to gauge the rate of flow. These mechanisms operate on principles of fluid dynamics rather than thermal properties. Similarly, the plunger type meter movement relies on physical movement of a plunger in response to the pressure change from the fluid, again functioning through mechanical means rather than thermal effects.

Since none of these mechanisms operate based on thermal characteristics, the assertion that they are examples of a thermal type meter movement is inaccurate, making the correct response to the question "False." Understanding the operation and principles behind these different types of meter movements is essential for accurately classifying them and knowing their applications in various measurement scenarios.