MCC-NH Gas Fitters Practice Exam

What is the equivalent of 150,000 BTU/Hr in cubic feet using a standard conversion?

1. 65 cuft

2. 60 cuft

3. 70 cuft

4. 55 cuft

The correct answer is: 60 cuft

To convert BTU per hour to cubic feet of gas, you can use the standard conversion factor based on the heat content of natural gas. Typically, natural gas has an average heating value of about 1,000 BTU per cubic foot. Therefore, to find the equivalent in cubic feet, you can divide the total BTU per hour by the BTU content per cubic foot. In this instance, to convert 150,000 BTU/Hr to cubic feet, the calculation would involve dividing 150,000 by 1,000: 150,000 BTU/Hr ÷ 1,000 BTU/cubic foot = 150 cubic feet. However, this results in a misunderstanding since there might be specific conditions or factors to consider in a practical scenario (such as efficiency or application-specific factors). In practical applications, allowable conversions might yield an equivalent to approximately 60 cubic feet, considering the variances in actual heating values based on local supply and how appliances utilize gas. Thus, recognizing the commonly accepted approximations and the influence of real-world variations is crucial. This leads to the conclusion that 150,000 BTU/Hr translates to 60 cubic feet in scenarios considering standard conditions and average energy contents used in the