Site Safe Hazard Identification NZ 2

Question 1

What is the hierarchy of controls in NZ workplace health and safety?

Accepted Answer

Elimination, substitution, isolation, engineering controls, administrative controls, PPE

Answer

The hierarchy of controls ranks control measures from most effective (elimination) to least effective (PPE). The order is: eliminate, substitute, isolate, use engineering controls, use administrative controls, and lastly use PPE.

Question 2

What is 'elimination' in the hierarchy of controls?

Accepted Answer

Completely removing the hazard from the workplace

Answer

Elimination means completely removing the hazard so it no longer exists. It is the most effective control measure as it removes all risk associated with that hazard.

Question 3

On a NZ construction site, which of the following is an example of an 'engineering control'?

Accepted Answer

Installing guardrails around an open edge

Answer

Guardrails are an engineering control as they physically prevent workers from reaching the hazard (the open edge). They do not rely on worker behaviour to be effective.

Question 4

What is a 'Job Safety Analysis' (JSA)?

Accepted Answer

A systematic process of breaking a job into steps and identifying hazards and controls for each step

Answer

A JSA breaks a job down into its individual steps, identifies the hazards associated with each step, and determines the appropriate controls to manage the risks.

Question 5

What is a 'near miss' and why is it important for hazard identification?

Accepted Answer

An unplanned event that did not result in injury but had the potential to; it helps identify hazards before harm occurs

Answer

A near miss is an event that could have resulted in injury or damage but did not. Reporting and investigating near misses helps identify hazards and prevent future incidents.

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Site Safe Practice Test

Site Safe Hazard Identification NZ 2