Power Plant Safety Flashcards

Which personal protective equipment is required when handling sulfuric acid in a water treatment area?

Answer: Acid-resistant gloves, goggles, and apron

Corrosive acids require chemical-resistant gloves, eye protection, and an apron to prevent skin and eye burns.

What is the purpose of a relief valve on a boiler?

Answer: To automatically release pressure that exceeds safe limits

A relief valve opens to vent excess pressure, preventing a catastrophic boiler rupture.

During a hot work operation near flammable materials, what is the role of a fire watch?

Answer: To monitor for sparks and ignition during and after the work

A fire watch observes for stray sparks or smoldering and remains for a period after work to catch delayed ignition.

What hazard does hydrogen used for generator cooling primarily present?

Answer: Explosive flammability when mixed with air

Hydrogen is highly flammable and forms explosive mixtures with air, requiring leak monitoring and purity control.

Why is a permit-to-work system used for high-risk maintenance tasks?

Answer: To formally document hazards, controls, and authorization before work begins

Permit-to-work ensures hazards are identified and controls authorized so work proceeds only under safe conditions.

What should a worker do if a colleague collapses inside a confined space?

Answer: Activate the rescue plan and summon trained rescuers without entering unprotected

Untrained entry is a leading cause of multiple fatalities, so the rescue plan and trained responders must be activated.

What is the function of an arc flash hazard label on a switchgear panel?

Answer: To communicate incident energy and required PPE for safe work

Arc flash labels specify incident energy levels and the PPE category needed to protect workers from an arc flash.