Ground Bearing, Outriggers and Setup
Assess soil, services, excavations, slopes, mats, outrigger extension, level and travel path before the lift.
How to study crane and rigging decisions
Practice like a lift supervisor: verify competent people, calculate the actual lift, protect the ground, inspect every lifting point, control the load path, stop for communication or weather failures, and document defects before the next shift inherits them.
Core concepts
Concept 1
Move or redesign setup after checking trench stability, ground bearing, exclusion distance, mats and competent approval.
Exam cue: trench edge setup
Concept 2
Use capacity data for the actual outrigger configuration, or change setup so the planned chart condition is met.
Exam cue: partial outrigger chart
Concept 3
Stop setup and use designed, stable mats or pads on prepared ground before test lift or load movement.
Exam cue: stable outrigger mats
Targeted study blocks
Simulation focus
Ground Bearing, Outriggers and Setup
Assess soil, services, excavations, slopes, mats, outrigger extension, level and travel path before the lift.
Risk pitfalls and guardrails
Treating verbal permission as written authorization.
Guardrail: Avoid verbal approval, copied readings, skipped isolation, and after-the-fact record traps.
Proceeding without recording readings, isolation, PPE, or exposure-control evidence.
Guardrail: Avoid verbal approval, copied readings, skipped isolation, and after-the-fact record traps.
Choosing a generic answer without checking state variation or the latest official notice.
Guardrail: Avoid verbal approval, copied readings, skipped isolation, and after-the-fact record traps.
Memory anchors
trench edge setup
Move or redesign setup after checking trench stability, ground bearing, exclusion distance, mats and competent approval.
partial outrigger chart
Use capacity data for the actual outrigger configuration, or change setup so the planned chart condition is met.
stable outrigger mats
Stop setup and use designed, stable mats or pads on prepared ground before test lift or load movement.
travel path verification
Verify slab capacity and ground support, protect or reroute the travel path, and document the approved movement route.
Official source check
Verify eligibility, forms, fees, validity, and safety requirements with State Factories Inspectorates / Directorate of Industrial Safety and Health / Sector skill and lifting-equipment safety authorities or the current state authority notice.
Stop-work cue
If identity, authorization, isolation, PPE, exposure limits, or emergency controls are unclear, stop work and escalate.
Record cue
Exam-safe answers protect written records, competent sign-off, instrument readings, and traceable corrections.
Shortcut trap
Fast results, verbal approval, copied certificates, and undocumented adjustments are common trap answers.
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
Outrigger floats have been placed on stacks of loose broken bricks. The bricks begin tilting during setup. What is the correct response?
An estimated maximum outrigger reaction is 400 kN. A mat has an effective bearing area of 2 m². Ignoring mat self-weight, what average ground pressure does this represent?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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