Question

Any single CNG container must not exceed what?

1) 100 liters
2) 200 liters
3) 300 liters
4) 400 liters

Answer 1

The correct answer is option 2, which is a 200 liter capacity limit for a single Compressed Natural Gas (CNG) container in order to ensure safety in handling and storage.

Step-by-step explanation:

The correct answer is option 2, 200 liters. Compressed Natural Gas (CNG) containers are subjected to rigorous standards for safety. These standards include limitations on the maximum capacity for a single CNG container. While gasoline has a typical density of 0.75 kg/L, and CO2 emissions can be estimated using this density, this is not directly related to the limits on CNG container size.

Gases like CNG do not have a fixed shape or volume, taking the shape of their container and expanding or contracting to fill the space. The limit on container size ensures that each unit can be safely handled and stored. If compared with gasoline, CNG has higher energy content per volume, thus a 200-liter limit on CNG allows it to store an adequate amount of fuel while maintaining safety measures.

This is because CNG (Compressed Natural Gas) is highly pressurized, which allows it to be stored in a smaller volume. Increasing the volume beyond safe limits could lead to structural damage or failure of the container.