IHSA Emergency Response & Incident Management 3

Question 1

Which NIMS principle ensures that personnel report to only one supervisor during an emergency response?

Accepted Answer

Unity of command

Answer

Unity of command means every individual has a single designated supervisor, reducing confusion and conflicting orders during emergencies.

Question 2

An excavation cave-in partially buries two workers. Which action should responders take BEFORE entering the trench?

Accepted Answer

Shore or slope the trench walls to prevent secondary collapse

Answer

Secondary collapse is the primary hazard in trench rescues; shoring or sloping must be established before rescuers enter to protect both victims and responders.

Question 3

Under OSHA's Process Safety Management (PSM) standard, an emergency response plan for highly hazardous chemicals must be coordinated with which external entity?

Accepted Answer

Local emergency planning committees (LEPCs)

Answer

29 CFR 1910.119(n) requires PSM emergency response plans to be coordinated with local emergency planning committees to integrate community-level response.

Question 4

A chemical spill creates an IDLH atmosphere. The hot zone, warm zone, and cold zone layout is part of which hazmat response concept?

Accepted Answer

Zonal control or site work zones

Answer

Hazmat zonal control divides the site into hot, warm, and cold zones to control access, limit exposure, and stage decontamination activities.

Question 5

Which category of fire extinguisher is specifically required for energized electrical equipment fires?

Accepted Answer

Class C

Answer

Class C extinguishers use non-conductive agents rated for fires involving energized electrical equipment.

(IHSA) Infrastructure Health & Safety Association Certified Coach Practice Test

(IHSA) Infrastructure Health & Safety Association Certified Coach Practice Test

IHSA Emergency Response & Incident Management 3