Technical Standards and Safety Authority (TSSA) G3 Practice Exam

The heat content of 1 cubic foot of natural gas is approximately:

1. 1,000 Btu

2. 2,520 Btu

3. 10,000 Btu

4. 25,000 Btu

The correct answer is: 1,000 Btu

The heat content of natural gas is commonly understood through its energy value, which is measured in British thermal units (Btu). Typically, the approximate heat content of 1 cubic foot of natural gas ranges around 1,000 Btu. This figure can vary somewhat based on the specific composition of the natural gas, but 1,000 Btu is widely accepted as a standard reference point for general calculations and conversions in the industry. This value is crucial for applications involving heating and combustion processes, as it helps in estimating energy needs for equipment and systems using natural gas as fuel. Options presenting values significantly higher than 1,000 Btu, such as 2,520, 10,000, and 25,000 Btu, exceed the typical heat content per cubic foot and would not align with standard practice in the natural gas sector for estimating energy content.