Exhausting gases through ducting can create a ____ electric charge.

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Multiple Choice

Exhausting gases through ducting can create a ____ electric charge.

Explanation:
Exhausting gases through ducting can create a static electric charge. When gas flows rapidly through ducts, friction and contact with duct walls can transfer electrons and separate charges, causing a buildup of static electricity on surfaces or in the gas. This static charge is a safety concern in systems handling potentially flammable atmospheres, so grounding and bonding of ductwork or using conductive materials helps prevent sparks. The other terms describe energy or motion (kinetic, dynamic) or heat (thermal) and don’t describe electrical charge buildup.

Exhausting gases through ducting can create a static electric charge. When gas flows rapidly through ducts, friction and contact with duct walls can transfer electrons and separate charges, causing a buildup of static electricity on surfaces or in the gas. This static charge is a safety concern in systems handling potentially flammable atmospheres, so grounding and bonding of ductwork or using conductive materials helps prevent sparks. The other terms describe energy or motion (kinetic, dynamic) or heat (thermal) and don’t describe electrical charge buildup.

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