Capacity, Load Centres and Charts
Select and interpret capacity information for the actual machine, attachment, configuration, radius, height, load centre and operating condition.
How to prepare for an NPORS category assessment
Build a safe explanation from machine identity and information through checks, work-area controls, operation, stop conditions and shutdown; then practise it using the selected category's current learning outcomes.
Core concepts
Concept 1
Select and interpret capacity information for the actual machine, attachment, configuration, radius, height, load centre and operating condition.
Exam cue: Confirm the exact NPORS category, machine, attachment and duty before applying a rule.
Concept 2
Build the configuration first, include every relevant part of the load and compare the planned duty with the correct plate or chart.
Exam cue: Build the configuration first, include every relevant part of the load and compare the planned duty with the correct plate or chart.
Concept 3
NPORS lift-truck and crane outcomes require understanding rated capacity, safe working load, load centres or duty information as applicable.
Exam cue: Name the stop condition and the authorised person or source needed to proceed.
Concept 4
A headline maximum capacity never applies universally across configurations.
Risk pitfalls and guardrails
Ignoring attachment mass, lifting accessories, shifted load centre or increased radius.
Guardrail: A similar machine or held card does not remove category, attachment or familiarisation requirements.
Treating a scheme card as universal permission to operate.
Guardrail: Do not replace manufacturer information, physical protection, a competent plan or site authorisation with experience or memorised wording.
Replacing current manufacturer or site controls with memory from another category.
Guardrail: A similar machine or held card does not remove category, attachment or familiarisation requirements.
Memory anchors
Configure, Then Chart
Choose the applicable duty before reading capacity.
Count the Whole Load
Payload and relevant accessories contribute.
Radius Reduces Reserve
Reach and load centre change capacity.
Capacity, Load Centres and Charts: Source
Confirm the current NPORS category outcomes, equipment instructions and workplace controls.
Capacity, Load Centres and Charts: Safe Boundary
Stop and escalate when the task, condition or decision exceeds the operator's competence or authority.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
A load weighs 2 tonnes at 3 metres radius. What is its simple load moment?
If the same load moves from 3 to 4 metres radius, what happens to moment?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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