CNG CNG Environmental and Economic Benefits

Question 1

Compared to diesel, CNG vehicles typically reduce particulate matter (PM) emissions by approximately how much?

Accepted Answer

Up to 90%

Answer

CNG combustion produces up to 90% less particulate matter than diesel, significantly improving air quality.

Question 2

Which federal agency regulates tailpipe emission standards that CNG vehicles must meet in the United States?

Accepted Answer

EPA

Answer

The U.S. Environmental Protection Agency (EPA) sets and enforces tailpipe emission standards for all motor vehicles including CNG vehicles.

Question 3

What is a primary economic advantage of CNG as a vehicle fuel compared to gasoline in the U.S.?

Accepted Answer

Lower cost per gasoline gallon equivalent (GGE)

Answer

CNG typically costs less per gasoline gallon equivalent (GGE) than gasoline or diesel, reducing operating costs for fleets.

Question 4

CNG vehicles emit significantly lower amounts of which greenhouse gas compared to gasoline vehicles?

Accepted Answer

Carbon dioxide (CO2)

Answer

CNG combustion produces approximately 20–30% less CO2 than gasoline, reducing greenhouse gas contributions.

Question 5

Which U.S. government incentive program has historically provided a tax credit for purchasing qualified CNG vehicles or fueling equipment?

Accepted Answer

Alternative Fuel Vehicle Refueling Property Credit (Form 8911)

Answer

IRS Form 8911 covers the Alternative Fuel Vehicle Refueling Property Credit, which applies to CNG fueling infrastructure.

(CNG) Compressed Natural Gas Practice Test