Plant Operator Selection System Test Plant Safety Procedures and Regulations 1

Question 1

When a pressure relief valve activates unexpectedly during normal operations, the operator's FIRST action should be to:

Accepted Answer

Notify the control room and monitor the pressure reading

Answer

Unexpected relief valve activation indicates a process upset and must be reported immediately so the control room can assess and respond.

Question 2

A Lockout/Tagout (LOTO) procedure is required before:

Accepted Answer

Servicing equipment that could unexpectedly energize

Answer

LOTO is mandatory before any servicing or maintenance work where unexpected energization could injure workers.

Question 3

The IDLH (Immediately Dangerous to Life or Health) concentration for a gas is the level at which:

Accepted Answer

A worker could not escape without severe health effects

Answer

IDLH defines the concentration from which a worker could not escape within 30 minutes without irreversible harm or death.

Question 4

Which class of fire extinguisher is correct for an electrical equipment fire?

Accepted Answer

Class C

Answer

Class C extinguishers use non-conductive agents and are designed specifically for energized electrical equipment fires.

Question 5

A Safety Data Sheet (SDS) Section 8 provides information on:

Accepted Answer

Exposure controls and personal protective equipment

Answer

SDS Section 8 covers occupational exposure limits, engineering controls, and required PPE for safe handling.

Plant Operator Selection System Test Practice Test