Texas CNG(Compressed Natural Gas) Driver Practice

Which type of manometer is recommended for measuring high-pressure gases?

1. Digital manometer

2. U-tube manometer

3. Bourdon gauge

4. Inclined manometer

The correct answer is: Bourdon gauge

The Bourdon gauge is particularly recommended for measuring high-pressure gases due to its design and functionality. It operates on the principle that a coiled tube will straighten out when pressure is applied within it. This movement is then translated into a dial reading, which allows for easy and accurate measurement of high-pressure gas systems. Bourdon gauges are robust and can handle substantial pressure ranges, making them suitable for various industrial and commercial applications where high-pressure gases are present. They are also durable, which is important in environments where the equipment may be subject to vibration or shock. Other types of manometers, such as digital manometers, U-tube manometers, and inclined manometers, are generally more suited for lower pressure measurements or specific applications. While digital manometers are versatile and can provide accurate readings, they may not handle the extreme pressures as effectively as Bourdon gauges. U-tube and inclined manometers are primarily used for differential pressure measurements at lower pressures and liquid applications, making them less appropriate for high-pressure gas scenarios.