Red Seal Gasfitter — Class B Practice Exam

How can freezing temperatures affect gas meters?

1. They have no effect on functionality

2. They can cause the meter to slow down or stop functioning correctly

3. They make the meter more efficient

4. They increase the gas flow rate

The correct answer is: They can cause the meter to slow down or stop functioning correctly

Freezing temperatures can significantly impact gas meters, primarily by causing the meter to slow down or stop functioning correctly. Most gas meters are designed to operate within a certain temperature range. When exposed to freezing conditions, the internal components may become less responsive due to the effects of cold, such as thickening lubricants or the contraction of materials. This can lead to inaccurate readings, reduced flow measurement, or complete failure to register gas flow. Additionally, any moisture within the gas meter can freeze, leading to blockages or further mechanical issues. Therefore, the impact of freezing temperatures on a gas meter can compromise its ability to provide reliable measurements, requiring special considerations for installation and operation in colder climates. Proper safeguards and measures are needed to ensure that gas meters remain functional and accurate even in low temperatures.