Plant Safety Procedures and Regulations Flashcards

During a fire evacuation, an operator should:

Answer: Follow the designated muster point procedure and account for all personnel

Operators must follow established evacuation routes and report to the muster point so a headcount confirms all personnel are accounted for.

A permit-to-work system is used in plants primarily to:

Answer: Control hazardous work by formally authorizing and communicating risks

Permit-to-work systems ensure hazardous tasks are formally assessed, authorized, and communicated to all affected parties before work begins.

When entering a confined space, the atmosphere must be tested for all of the following EXCEPT:

Answer: Ambient noise levels

Confined space atmospheric testing covers oxygen deficiency/enrichment, flammable vapors, and toxic gases — noise is a separate safety concern, not an atmospheric test.

The Lower Explosive Limit (LEL) of a flammable gas represents:

Answer: The lowest concentration at which the gas can ignite in air

The LEL is the minimum fuel-to-air ratio at which a flammable mixture can sustain combustion.

Which PPE is required when handling concentrated sulfuric acid?

Answer: Face shield, chemical-resistant gloves, and apron

Concentrated sulfuric acid causes severe burns on contact, requiring full face and skin protection with chemical-resistant materials.

A process plant 'near miss' incident should be:

Answer: Reported and investigated to prevent future accidents

Near misses are leading indicators of potential accidents; reporting and investigating them prevents future incidents before harm occurs.