🔍 Key Concepts

• static electricity generation during liquid transfer • effects of splashing, spraying, or turbulence when handling fuel or oil • difference between mechanical pressure and fluid movement/agitation

💭 Think About

• Think about what physical actions cause charges to build up and separate when liquids are moved or transferred. • Which choice describes a situation most likely to create lots of tiny droplets or a disturbed liquid surface? • Consider which options are always true for petroleum transfers versus those that only apply in special cases.

✅ Before You Answer

• Identify which option clearly involves movement and disturbance of the liquid surface. • Ask whether pressure alone, without motion or splashing, would create much static electricity. • Check if the options mentioning only low temperature or only low viscosity make sense as universal causes of static during petroleum handling.