CHST CHST - Construction Health and Safety Technician Incident Investigation and Reporting Questions and Answers 2

Question 1

During an incident investigation on a construction site, what is the PRIMARY purpose of conducting witness interviews as soon as possible after the event?

Accepted Answer

To capture accurate recollections before memory fades

Answer

Witness interviews should be conducted promptly because human memory deteriorates rapidly, and early interviews yield the most accurate and detailed accounts of what occurred.

Question 2

Which root cause analysis technique uses a diagram that categorizes potential causes into groups such as Man, Machine, Method, Material, and Environment?

Accepted Answer

Fishbone (Ishikawa) diagram

Answer

The Fishbone or Ishikawa diagram organizes potential causes into major categories like Man, Machine, Method, Material, and Environment to systematically identify root causes.

Question 3

Under OSHA recordkeeping requirements, which of the following incidents must be reported to OSHA within 8 hours?

Accepted Answer

A work-related fatality

Answer

OSHA requires employers to report any work-related fatality within 8 hours, while amputations, loss of an eye, and inpatient hospitalizations must be reported within 24 hours.

Question 4

What is the MOST important reason for preserving the incident scene before an investigation begins?

Accepted Answer

To ensure physical evidence is not altered or destroyed

Answer

Preserving the incident scene ensures that critical physical evidence remains intact and unaltered, which is essential for accurately determining the sequence of events and root causes.

Question 5

A construction worker falls from scaffolding and is hospitalized. During the investigation, the team discovers the scaffold was missing guardrails and the worker had no fall protection training. Which investigation finding represents a SYSTEM-level root cause?

Accepted Answer

The company lacked a scaffold inspection program

Answer

The absence of a scaffold inspection program is a system-level root cause because it represents a management system failure that allowed the unsafe condition to persist undetected.

CHST - Construction Health and Safety Technician Practice Test

CHST - Construction Health and Safety Technician Practice Test

CHST CHST - Construction Health and Safety Technician Incident Investigation and Reporting Questions and Answers 2