What type of tools shall be used near open fuel cells or taken into the fuel cell?

• A. Non-sparking
• B. Insulated
• C. Grounded
• D. Wooden-handled

Answer: (D)

Minimizing ignition sources around open fuel cells is the key idea. The tools used near fuel vapors should not spark or conduct electricity in a way that could ignite the fuel. Wooden-handled tools are preferred here because the wooden handle is non-conductive and unlikely to generate or transfer sparks into the fuel-cell environment. The metal part of the tool could still spark if it contacts other metal, but the wooden handle helps isolate the operator and reduces ignition risk when working in or near the fuel cell. This follows the safety aim of keeping ignition sources to a minimum in fuel-cell areas.