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NCSO Incident Investigation practice questions

Written and fact-checked by the NCSO Prep team, Alberta · · Sources

Short answer

The Incident Investigation module of the Alberta NCSO exam covers root cause analysis, evidence preservation, witness interviews, reporting obligations and corrective actions. NCSO Prep has 30 practice questions in this module, each showing the legislation behind the answer. Sample questions are free to try below, and the full module is included with any NCSO Prep plan — CA$19 per month, CA$129 per year or CA$199 once. The NCSO exam overall requires 75% to pass.

What the Incident Investigation module covers

On the Alberta NCSO exam, Incident Investigation covers root cause analysis, evidence preservation, witness interviews, reporting obligations and corrective actions. It is one of ten modules, and the exam draws across all of them — which is why candidates who are strong on site but narrow in coverage still fail.

Where candidates lose marks. Reporting timelines and what legally constitutes a reportable incident are frequently answered from habit rather than legislation.

Try 30 Incident Investigation questions

These are real questions from the NCSO Prep bank, shown with their answers and the reasoning behind them. Every question in the app explains the rule it comes from, so you learn where a requirement lives rather than memorising a letter.

Sample question 1

An 'Accident' is defined as:

  1. Any near miss that was reported to management
  2. A first aid case requiring medical treatment
  3. An unplanned, undesired event resulting in property damage, injury, death, or occupational illness correct
  4. Any government-reportable incident only
Why

An accident is UNPLANNED and UNDESIRED - causing: property/equipment damage, personal injury, death, or occupational illness. 'Unplanned' distinguishes accidents from intentional harm.

CSA - Accident Definition

Sample question 2

The PRIMARY goal of an incident investigation is:

  1. Satisfy WCB reporting requirements
  2. Find the ROOT CAUSE and implement corrective actions to PREVENT RECURRENCE correct
  3. Calculate insurance costs and file compensation claims
  4. Assign blame and discipline workers responsible
Why

Investigation exists for ONE reason: PREVENTION. Finding root causes allows the organization to fix systemic problems. Blame-focused investigations miss root causes - incidents recur. The exam will test this philosophy repeatedly.

PHSM - Investigation Primary Goal

Sample question 3

Who should be involved in an incident investigation?

  1. Only the safety officer and human resources
  2. The employer (or supervisor) AND a worker representative - plus subject matter experts as needed correct
  3. Only managers and senior supervisors
  4. Only government OHS officers after formal notification
Why

Investigations should include management/supervision AND a worker representative. Workers have firsthand knowledge of actual conditions. Worker involvement improves the quality of findings and builds trust in the process.

PHSM - Investigation Team Composition

Practise the full Incident Investigation module →

How to study this module

  1. Answer before you read. Cover the options and try to produce the answer from memory. Recognition feels like knowledge and collapses under exam pressure.
  2. Space your review. Come back to missed questions after a day, then three days, then a week. NCSO Prep schedules this automatically.
  3. Check the source. When you miss one, read the explanation and note which instrument the rule sits in — Act, Regulation or Code.
  4. Time yourself once you are consistent. The full exam allows up to 2 hours and requires 75%.

Questions people ask

What is on the NCSO Incident Investigation module?

The Incident Investigation module covers root cause analysis, evidence preservation, witness interviews, reporting obligations and corrective actions.

How many Incident Investigation questions does NCSO Prep have?

30 questions in the Incident Investigation module, each with an explanation citing the underlying legislation.

What score do I need to pass the NCSO exam?

An overall score of 75%, per ACSA’s NCSO Information Booklet (February 2025). Candidates have up to 2 hours and write online.

Is there a free NCSO Incident Investigation practice test?

The full Legislation module is free on NCSO Prep with no credit card. Sample questions from the Incident Investigation module are shown free on this page, and the complete module is included with any paid plan from CA$19 per month.

The other nine modules

Last updated 9 August 2026.

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Sources

Exam facts on this page are taken from the certifying body's own published material. Last verified 9 August 2026.

NCSO Prep is an independent study tool. It is not affiliated with, endorsed by, or accredited by ACSA or the CFCSA.