Question

One of the following is not a possible reason for use of CNG in automobiles

• A. It can be adulterated
• B. It is cheaper than petrol
• C. It burns more efficiency
• D. It reduces pollution

Answer 1

The correct option is A It can be adulterated

Compressed natural gas vehicles require a greater amount of space for fuel storage than conventional gasoline-powered vehicles. Since it is a compressed gas, rather than a liquid like gasoline, CNG takes up more space for each GGE (gasoline gallon equivalent). However, the tanks used to store the CNG take up space in the trunk of a car or bed of a pickup truck which has been modified to additionally run on CNG. This problem is solved in factory-built CNG vehicles that install the tanks under the body of the vehicle, leaving the trunk free (e.g., Volkswagen) which sold in countries such as Peru). Another option is installed on the roof (typical on buses), but this could require structural modifications.

SO the correct answer is 'It can be adulterated'.