Gas Fitter Practice Test

Which type of gas meter would be suitable for a small or mid-size commercial installation?

1. Rotary type

2. Tubing type

3. Bellows type

4. Orifice

The correct answer is: Bellows type

The bellows type gas meter is well-suited for small to mid-sized commercial installations due to its accurate measurement capabilities and sensitivity to flow changes, which is essential in such settings. This type of meter works by using a flexible bellows mechanism that expands and contracts as gas flows through it, thus providing precise volume measurements. This precision is vital in commercial applications where gas consumption needs to be closely monitored for both billing and operational efficiency. Bellows meters are especially advantageous because they can handle varying gas pressures and flow rates, making them versatile for different operational needs found in small to mid-sized businesses. They are typically not as bulky or complex as larger industrial meters, thus fitting well in environments with limited space. In contrast, other meter types, like rotary and orifice meters, are generally designed for larger-scale applications or specific industrial uses, which may not be necessary or cost-effective for smaller commercial operations. Tubing meters may offer lower accuracy and capacity, making them less ideal for commercial settings where precise measurement is crucial.