___________ is the controlled burning of a liquid or gas to reduce or control the pressure and/or to dispose of the product.

• A. Flushing
• B. Ventilation
• C. Flaring
• D. Dilution

Answer: (C)

Flaring is the controlled burning of a liquid or gas to relieve pressure and dispose of the product. When gas can’t be captured or used, it’s directed to a flare stack and burned in a controlled flame. This reduces the hazard by eliminating the risk of a pressurized, flammable release and converts the gas into less hazardous combustion products, mainly water vapor and carbon dioxide. It’s a safety measure to prevent pressure buildup that could lead to equipment failure or an uncontrolled release. This is different from flushing (moving fluids out of a system), ventilation (moving air to dilute or remove contaminants without burning), or dilution (lowering concentration by mixing with air or inert gas without combustion).