White Card Working at Heights 2

Question 1

What is the correct angle for setting up a portable ladder?

Accepted Answer

75 degrees (4:1 ratio)

Answer

Portable ladders should be set at approximately 75 degrees — 1 unit out for every 4 units up (4:1 ratio) per AS/NZS 1892.1.

Question 2

How far must a ladder extend above a landing platform?

Accepted Answer

1 metre

Answer

Ladders must extend at least 1 metre above the landing surface to provide a secure handhold when stepping off.

Question 3

What class of harness is required for fall arrest work?

Accepted Answer

Class P full-body harness

Answer

A full-body Class P harness is required for fall arrest, distributing forces across the body and keeping the wearer upright.

Question 4

What minimum guardrail height is required for scaffold edge protection?

Accepted Answer

900mm

Answer

Minimum guardrail height is 900mm above the working platform, plus a mid-rail and toe board are required.

Question 5

What is a 'leading edge' in construction?

Accepted Answer

The unprotected edge of a floor or roof that moves as construction progresses

Answer

A leading edge is an unprotected edge that changes location as the building grows — it requires specific fall protection strategies.

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