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

To assign blame to responsible workers

Answer

To satisfy insurance company requirements

Answer

To prepare for potential litigation

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

Fault tree analysis

Answer

5 Whys technique

Answer

Failure mode and effects analysis

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

Any workplace injury requiring first aid

Answer

A work-related amputation

Answer

A work-related loss of an eye

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

To prevent other workers from being exposed to the same hazard

Answer

To allow time for management to prepare a response

Answer

To document the scene for media inquiries

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 worker chose not to wear a harness

Answer

The guardrails were removed by a subcontractor

Answer

The scaffold was erected on uneven ground

Question 6

Which of the following is the BEST practice for writing corrective actions in an incident investigation report?

Accepted Answer

Assign each action to a specific person with a target completion date

Answer

Use general language to allow flexibility in implementation

Answer

Focus corrective actions only on the worker involved in the incident

Answer

Recommend disciplinary action as the primary corrective measure