White Card Working at Heights 6

Question 1

What is the minimum toe board height on a scaffold?

Accepted Answer

150mm

Answer

Toe boards must be a minimum of 150mm high to prevent objects from rolling or being kicked off the platform.

Question 2

When must a rescue plan be in place for work at heights?

Accepted Answer

Before any work at heights begins

Answer

A rescue plan must be ready before work commences because suspension trauma can be life-threatening within minutes.

Question 3

What is an inertia reel fall arrest device?

Accepted Answer

A self-retracting lifeline that locks when sudden acceleration is detected, similar to a car seatbelt

Answer

An inertia reel extends and retracts freely during normal movement but locks instantly when it detects the acceleration of a fall.

Question 4

What must a fragile roof risk assessment address?

Accepted Answer

The risk of the roof material giving way under a person's weight and required protection measures

Answer

Fragile roof assessments must evaluate whether materials (fibro, rusted metal, skylights) could give way and specify protection such as crawl boards or nets.

Question 5

Under what circumstances can PPE be the sole fall protection measure?

Accepted Answer

Only when all higher-level controls in the hierarchy have been considered and found not reasonably practicable

Answer

PPE (harnesses) should only be the sole control when passive and engineering controls are not reasonably practicable — it is the last resort in the hierarchy.

White Card Practice Test

White Card Practice Test

White Card Working at Heights 6