What risk is associated with transferring flammable liquids when static electricity is present?

• A. An explosion
• B. A fire
• C. An electrocution
• D. Spillage

Answer: (A)

Transferring flammable liquids poses a significant risk of an explosion when static electricity is present. This is primarily due to the buildup of static charge that can occur during the transfer process. When a flammable liquid flows through a pipe or is poured from one container to another, it can generate static electricity, particularly if the materials involved are non-conductive.

If the static charge reaches a sufficient level and subsequently discharges—typically when it comes into contact with a grounded surface or another object—it can ignite the vapors released by the flammable liquid. This ignition has the potential to cause a rapid combustion reaction, leading to an explosion, especially if the surrounding environment is conducive to a combustion event.

While fire is also a significant risk in such scenarios, the term "explosion" encapsulates the potentially catastrophic results of a static discharge in the presence of flammable vapors. Other options, like electrocution or spillage, do not specifically relate to the effect of static electricity in the same way, making the risk of explosion the most critical concern when dealing with the transfer of flammable materials.