MASS Power Plant Safety 3

Question 1

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

Accepted Answer

Acid-resistant gloves, goggles, and apron

Answer

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

Question 2

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

Accepted Answer

To automatically release pressure that exceeds safe limits

Answer

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

Question 3

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

Accepted Answer

To monitor for sparks and ignition during and after the work

Answer

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

Question 4

What hazard does hydrogen used for generator cooling primarily present?

Accepted Answer

Explosive flammability when mixed with air

Answer

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

Question 5

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

Accepted Answer

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

Answer

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

MASS Test Practice Test