CNG CNG Environmental and Economic Benefits 3

Question 1

Compared to gasoline vehicles, CNG vehicles typically produce approximately what percentage less carbon monoxide (CO)?

Accepted Answer

70–90% less

Answer

CNG combustion is cleaner and more complete than gasoline, resulting in 70–90% lower carbon monoxide emissions.

Question 2

Which U.S. Department of Energy program provides funding and resources to support CNG and alternative fuel vehicle deployment?

Accepted Answer

Clean Cities Coalition Network

Answer

The DOE's Clean Cities Coalition Network supports adoption of alternative fuels including CNG through funding, technical assistance, and stakeholder coordination.

Question 3

Which statement best describes the energy security benefit of CNG for U.S. fleet operators?

Accepted Answer

CNG is predominantly domestically sourced, reducing dependence on imported petroleum

Answer

Because natural gas is primarily produced domestically in the U.S., CNG provides insulation from geopolitical disruptions that affect imported oil prices.

Question 4

What environmental certification can CNG vehicles receive to qualify for High Occupancy Vehicle (HOV) lane access in some U.S. states?

Accepted Answer

EPA Green Vehicle Guide Certification and state-issued Clean Air Vehicle stickers

Answer

States like California issue Clean Air Vehicle (CAV) stickers to qualifying low-emission vehicles including CNG vehicles, granting HOV lane access.

Question 5

A CNG fleet's 'well-to-wheel' emissions analysis includes which phases of the fuel lifecycle?

Accepted Answer

Extraction, processing, distribution, and combustion in the vehicle

Answer

Well-to-wheel analysis accounts for all greenhouse gas emissions from natural gas extraction through final combustion, providing a complete lifecycle picture.

(CNG) Compressed Natural Gas Practice Test

(CNG) Compressed Natural Gas Practice Test

CNG CNG Environmental and Economic Benefits 3