White Card Working at Heights 2 — Questions and Answers
Question 1: What is the correct angle for setting up a portable ladder?
- 45 degrees
- 90 degrees (vertical)
- 75 degrees (4:1 ratio) (Correct answer)
- 60 degrees
Correct answer: 75 degrees (4:1 ratio)
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?
- 300mm
- 500mm
- 1 metre (Correct answer)
- 2 metres
Correct answer: 1 metre
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?
- Class A sit harness
- Class P full-body harness (Correct answer)
- Class B chest harness
- Any class will do
Correct answer: Class P full-body harness
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?
- 500mm
- 750mm
- 900mm (Correct answer)
- 1200mm
Correct answer: 900mm
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?
- The sharpest tool
- The unprotected edge of a floor or roof that moves as construction progresses (Correct answer)
- The first worker to arrive
- The project timeline
Correct answer: The unprotected edge of a floor or roof that moves as construction progresses
A leading edge is an unprotected edge that changes location as the building grows — it requires specific fall protection strategies.
Question 6: What is an exclusion zone below elevated work?
- A workers' break area
- An area on the ground below elevated work where access is restricted to prevent injury from falling objects (Correct answer)
- A storage area
- A parking zone
Correct answer: An area on the ground below elevated work where access is restricted to prevent injury from falling objects
Exclusion zones prevent people from being in the danger area below where objects could fall from the work above.
White Card Working at Heights 2
What is the correct angle for setting up a portable ladder?