MASS Power Plant Safety 5

Question 1

What is the main purpose of a plant emergency evacuation drill?

Accepted Answer

To ensure workers know routes, assembly points, and procedures

Answer

Drills familiarize workers with evacuation routes, assembly points, and roles so they respond effectively in a real emergency.

Question 2

Which condition makes an atmosphere immediately dangerous to life and health (IDLH)?

Accepted Answer

A concentration of contaminant that threatens life or causes irreversible harm

Answer

An IDLH atmosphere poses an immediate threat to life or causes permanent health effects, requiring supplied-air respiratory protection.

Question 3

What is the purpose of a guard on a coupling between a motor and pump?

Accepted Answer

To prevent contact with rotating parts that can cause entanglement

Answer

Coupling guards block access to rotating shafts that could entangle clothing, hair, or limbs.

Question 4

Why should oily rags be stored in a closed metal container?

Accepted Answer

To prevent spontaneous combustion from oxidation heat

Answer

Oil-soaked rags can self-heat through oxidation and ignite, so a closed metal container limits oxygen and contains any fire.

Question 5

What is the correct procedure when a gas detector alarms for a combustible gas leak?

Accepted Answer

Stop ignition sources, evacuate, and ventilate per procedure

Answer

Removing ignition sources, evacuating, and ventilating prevents a flammable atmosphere from igniting.

MASS Test Practice Test