Texas Compressed Natural Gas (CNG) Delivery Truck Driver Practice Exam

What is the composition of CNG primarily made up of?

Over 50% carbon dioxide Over 90% hydrogen Over 90% methane Less than 30% nitrogen

Correct Answer:

Over 90% methane

Explanation:

The composition of Compressed Natural Gas (CNG) is primarily made up of over 90% methane. Methane (CH4) is the main component of natural gas, which makes CNG a highly efficient fuel source for vehicles. It is favored in the transportation sector because it burns cleaner than other fossil fuels, resulting in lower emissions of harmful pollutants. Understanding the high methane content is crucial for drivers and industry professionals to appreciate its energy potential and environmental benefits. Methane provides a high energy output and contributes to the overall efficiency that makes CNG an appealing alternative to gasoline or diesel fuels. This makes it an integral part of discussions around sustainable transportation methods and the transition to cleaner energy sources.

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