ADVANCED RIGGING (BOOM VOC) QUESTIONS
WITH CORRECT ANSWERS 2025/2026
When a flexible steel wire rope is used to support a hung scaffold, what is its maximum
allowable load? - CORRECT ANSWER -One sixth of the breaking load
What is the minimum width of a heavy duty platform? - CORRECT ANSWER -900mm or 4 boards
What is the maximum cradle width for a double rope suspended scaffold? - CORRECT ANSWER -
1.7 metres
Can bags of sand be used to counterweight a needle? - CORRECT ANSWER -No
Would you use bulldog grips to secure a suspension rope? - CORRECT ANSWER -No
You are required to hang a chain block to lift a load. The chain block will be supported from an
inverted snatch block on a span rope fixed between two beams?
(A) The span between the beams is 30 metres.
The weight of the load is 750kg.
The weight of the lifting gear and load hauling part is 60kg.
Calculate the tension in the span rope when the sag is at its recommended minimum. -
CORRECT ANSWER -((750+60) x 30) / (4 x 1.5) = 4050 kg
You are required to hang a chain block to lift a load. The chain block will be supported from an
inverted snatch block on a span rope fixed between two beams?
The span between the beams is 10 metres.
(B) The weight of the load is 500kg.
The weight of the lifting gear and load hauling part is 50kg.
WITH CORRECT ANSWERS 2025/2026
When a flexible steel wire rope is used to support a hung scaffold, what is its maximum
allowable load? - CORRECT ANSWER -One sixth of the breaking load
What is the minimum width of a heavy duty platform? - CORRECT ANSWER -900mm or 4 boards
What is the maximum cradle width for a double rope suspended scaffold? - CORRECT ANSWER -
1.7 metres
Can bags of sand be used to counterweight a needle? - CORRECT ANSWER -No
Would you use bulldog grips to secure a suspension rope? - CORRECT ANSWER -No
You are required to hang a chain block to lift a load. The chain block will be supported from an
inverted snatch block on a span rope fixed between two beams?
(A) The span between the beams is 30 metres.
The weight of the load is 750kg.
The weight of the lifting gear and load hauling part is 60kg.
Calculate the tension in the span rope when the sag is at its recommended minimum. -
CORRECT ANSWER -((750+60) x 30) / (4 x 1.5) = 4050 kg
You are required to hang a chain block to lift a load. The chain block will be supported from an
inverted snatch block on a span rope fixed between two beams?
The span between the beams is 10 metres.
(B) The weight of the load is 500kg.
The weight of the lifting gear and load hauling part is 50kg.