Height Safety Design Quiz

In the design phase of a new construction development, who is responsible to ensure that the maintenance requirements of the building are without risk to the health and safety of maintenance personnel?*
- The Building Owner
- The Building Surveyor
- The Body Corporate
- The Building Designer
CORRECT!
It is a common misconception that the responsibility for height safety is solely with the builder or building owner. However with regards to the design of a structure, Section 22 of the WHS Act 2011 states that if you are an architect, engineer or building design professional who works on the technical design of buildings you have an obligation to ensure "so far as is reasonably practicable, that the plant, substance or structure is designed to be without risks to the health and safety of persons". For more information go to Safe Work Australia's information page Safe Design.
INCORRECT!
It is a common misconception that the responsibility for height safety is solely with the builder or building owner. However with regards to the design of a structure, Section 22 of the WHS Act 2011 states that if you are an architect, engineer or building design professional who works on the technical design of buildings you have an obligation to ensure "so far as is reasonably practicable, that the plant, substance or structure is designed to be without risks to the health and safety of persons". For more information go to Safe Work Australia's information page Safe Design.

On a 5 degree pitched roof, which fall arrest anchor point layout is correct?
CORRECT!
As you can see by the diagrams below, the correct anchor point positioning is imperative in preventing pendulum fall.
INCORRECT!
As you can see by the diagrams below, the correct anchor point positioning is imperative in preventing pendulum fall.

What is the minimum height a ladder stile must extend beyond the landing level?*
- 500mm
- 750mm
- 1000mm
- There is no minimum height, it can be level
CORRECT!
INCORRECT!
According to Australian Standards the minimum height that a ladder stile must extend beyond the landing level is 1000mm.

What is the minimum height of a parapet or railing for it to be classified as a protected edge?*

850mm

900mm

1000mm

1200mm
CORRECT!
It is also a requirement that the parapet structure is rated in accordance with the load ratings as specified in AS1657.
INCORRECT!
900mm is the minimum height.
It is also a requirement that the parapet structure is rated in accordance with the load ratings as specified in AS1657.

What is the preferred method of fall protection for 2-3 technicians working on a mechanical unit within 2.0m of a fall edge?*

Anchor Points

Walkways

Guardrail
CORRECT!
INCORRECT!
Guardrail is the preferred method of fall protection as it provides a physical barrier for multiple operators to work behind safely. This form of protection is ideal for frequently accessed areas.
Walkways are not classed as fall protection, they are a means of access for the operator to move around the roof.
Anchors are an active means of fall protection requiring the operator to use a harness and lanyard and therefore need a higher level of user competence. This means of fall protection would be used for periodic maintenance tasks.

According to the hierarchy of control, in which category does guardrail belong?*

Fall Prevention

Fall Arrest

Fall Restraint
CORRECT!
According to the hierarchy of control, fall prevention is the highest form of protection. This removes the risk of the worker falling by providing a barrier between them and the fall hazard. Guardrails and skylight protectors are examples of the types of equipment that fall into this category. This method requires the least amount of operator competence for working at heights.
For more clarification on the different categories of height safety equipment visit our article Fall prevention, fall restraint and fall arrest.
INCORRECT!
Guardrails and skylight protectors are examples of the types of equipment that fall into the category of fall prevention. This method requires the least amount of operator competence for working at heights and according to the hierarchy of control is the highest form of protection you can provide.
For more clarification on the different categories of height safety equipment visit our article Fall prevention, fall restraint and fall arrest.

According to AS1657 what is the maximum preferred height of a rung type ladder before fall protection is required?*

3.0m

3.5m

6.0m
CORRECT!
INCORRECT!
3.5m is the maximum preferred height for a rung ladder before fall protection is required, as per AS1657. (AS1657:2018.H4)

What is the maximum height allowed between two levels before a stair or ladder is required?*

300mm

450mm

600mm

750mm
CORRECT!
INCORRECT!
450mm is the maximum distance between levels before a stair or ladder is required, as per AS1657. (AS1657:2018.3.1.4)

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