Gas Fitter Practice Test

Disable ads (and more) with a membership for a one time $2.99 payment

Study for the Gas Fitter Test. Enhance your knowledge with flashcards and multiple-choice questions, each accompanied by hints and explanations. Ace your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

If a one cubic foot test dial on a NG meter makes one revolution every 22 seconds, how many BTUH are being generated?

164MBH
41MBH
75MBH
82MBH

The correct answer is: 164MBH

To determine the BTUH (British Thermal Units per Hour) generated from the one cubic foot test dial on a natural gas meter making one revolution every 22 seconds, first, calculate the number of revolutions in an hour. Since there are 3600 seconds in an hour, you divide 3600 by the time taken for one revolution, which is 22 seconds. So, the calculation would be: 3600 seconds/hour ÷ 22 seconds/revolution = 163.64 revolutions per hour. Given that each revolution represents one cubic foot of natural gas, this means approximately 164 cubic feet of gas are being used per hour. Now, to convert this volume to BTUH, you need to know the heat content of natural gas, which is commonly around 1,000 BTUs per cubic foot. Therefore, you multiply the cubic feet per hour by the BTU content: 164 cubic feet/hour × 1,000 BTU/cubic foot = 164,000 BTUH, or 164 MBH (thousand BTU per hour). This leads to the conclusion that the system is generating 164 MBH, making this answer the clear choice.