What is a characteristic of a Venturi meter?

A Venturi meter is a device used to measure the flow rate of a fluid through a pipe. One of its defining characteristics is that it operates on the principle of fluid dynamics, specifically the Venturi effect, which describes how the pressure of a fluid decreases as its velocity increases when it flows through a constricted section of pipe.

The Venturi meter does not have any moving parts, which is significant because this design feature enhances its reliability and reduces maintenance needs. Since there are no moving components that could wear out or malfunction, the device can provide accurate flow measurements over a long period, making it a durable choice for fluid measurement applications.

The other characteristics mentioned are not applicable to a Venturi meter. It does not require electricity to function, which means it can be used in various environments where power supply might be limited. Additionally, it is not restricted to only large pipelines, as it is designed to measure flow in various pipe sizes, including smaller ones. Finally, the absence of moving parts distinguishes Venturi meters from other flow measuring devices that may rely on such components to function.