An E tank holds about how many liters of oxygen?

• A. 240 liters
• B. 500 liters
• C. 6900 liters
• D. 1000 liters

Answer: (B)

Oxygen cylinder capacity is described by how many liters of gas are inside the tank when it’s full, and this depends on the cylinder size. The E-size cylinder is a small, portable option, and when it’s full it contains about five hundred liters of oxygen. That estimate is commonly used in practice questions, so it’s the best match for an E tank. The other numbers correspond to much different sizes or fills, which is why they aren’t as appropriate for the E cylinder.