Compressed Natural Gas (CNG) Certification Practice Exam

One of the benefits of CNG vehicles compared to gasoline vehicles is reduced engine noise. CNG engines tend to operate more quietly because natural gas burns more cleanly and evenly than gasoline. This reduction in noise pollution is not only beneficial for the driver and passengers but also for the surrounding environment, particularly in urban areas where traffic noise can be a significant issue.

In contrast, higher exhaust emissions, longer refueling times, and increased fuel costs do not represent the advantages of CNG vehicles. In fact, CNG vehicles typically produce lower exhaust emissions, such as fewer particulates and greenhouse gases, and they often have comparable or quicker refueling times considering advancements in refueling technology. Additionally, while fuel prices can fluctuate, CNG generally offers cost advantages compared to gasoline, particularly in areas where it is readily available.