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Module

NCSO WHMIS / GHS practice questions

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

Short answer

The WHMIS / GHS module of the Alberta NCSO exam covers WHMIS 2015 hazard classes, safety data sheets, supplier and workplace labels, and pictograms. NCSO Prep has 35 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 WHMIS / GHS module covers

On the Alberta NCSO exam, WHMIS / GHS covers WHMIS 2015 hazard classes, safety data sheets, supplier and workplace labels, and pictograms. 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. People assume their WHMIS ticket is enough. The NCSO exam tests SDS section order and pictogram detail more precisely than a standard WHMIS course does.

Try 35 WHMIS / GHS 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

WHMIS stands for:

  1. Workplace Hazard Material Inspection Schedule
  2. Workplace Health and Materials Information System
  3. Workplace Hazardous Materials Information System correct
  4. Worker Hazard Management Identification Standard
Why

WHMIS = Workplace Hazardous Materials Information System. Canada's national hazard communication standard for hazardous products, now aligned with the international GHS (Globally Harmonized System).

WHMIS 2015 - Definition

Sample question 2

WHMIS 2015 is aligned with which international standard?

  1. The Globally Harmonized System of Classification and Labelling of Chemicals (GHS) correct
  2. REACH - European chemical regulation
  3. ISO 9001 Quality Management
  4. OSHA HazCom 2012 (US standard)
Why

Canada adopted the UN's Globally Harmonized System (GHS) into WHMIS 2015. This aligns Canada's hazard communication with international trading partners and standardizes labels and SDS formats globally.

WHMIS 2015 - GHS Alignment

Sample question 3

Under WHMIS 2015, the TWO main sources of hazard information for workers are:

  1. Safety meetings and government posted notices
  2. Safety Data Sheets (SDS) and product labels correct
  3. MSDS sheets and toolbox talks
  4. Supervisor verbal instructions and company policies
Why

WHMIS has two information pillars: (1) PRODUCT LABELS - on the container, quick hazard identification, (2) SAFETY DATA SHEETS (SDS) - 16 standardized sections of detailed hazard, safety, and emergency information. Workers must have access to both.

WHMIS 2015 - Two Information Sources

Practise the full WHMIS / GHS 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 WHMIS / GHS module?

The WHMIS / GHS module covers WHMIS 2015 hazard classes, safety data sheets, supplier and workplace labels, and pictograms.

How many WHMIS / GHS questions does NCSO Prep have?

35 questions in the WHMIS / GHS 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 WHMIS / GHS practice test?

The full Legislation module is free on NCSO Prep with no credit card. Sample questions from the WHMIS / GHS 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.