CACES R487 flashcards
CACES R487 · Build recall with a focused review session.
24 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Distributing jib
- A tower-crane arrangement changing working radius through its designed trolley movement, distinct from changing the angle of a luffing jib.
- Luffing jib
- A tower-crane boom arrangement whose designed angular movement changes working radius, with actual chart and clearance requirements.
- Reeving
- Routing of the hoist rope through specified parts and sheaves, affecting line loads and motion under the actual approved arrangement.
- Load-moment function
- A designed indicator or control addressing relevant load and radius conditions, not independent proof of every structural or stability requirement.
- Employer authorization
- The actual operating permission under the applicable French framework and site conditions, distinct from a practice score or CACES certificate alone.
- Assembly scope
- The competence and method for erection, climbing or dismantling, which must not be inferred solely from operator-test preparation.
- Gross allowance
- The specified total permitted suspended quantity under the actual chart convention, before deductions needed to determine net object capacity.
- Net object load
- The object quantity remaining after the chart’s required accessory and equipment deductions, not a complete lift approval.
- Operating radius
- The actual horizontal load geometry relevant to the chart, including the planned path and placement rather than pickup alone.
- Line-pull limit
- The permitted force under the actual rope and reeving arrangement, which can govern before another chart limit is reached.
- Sling-angle reference
- The stated horizontal or vertical convention needed to apply the appropriate trigonometric relation without reversing sine and cosine.
- Mass-equivalent tension
- A force stated using a defined gravity-based mass-equivalent convention, which must not be confused with an SI force unit.
- Sail effect
- Lateral aerodynamic action on an exposed load or structure, dependent on actual wind, projected area, shape and orientation.
- Out-of-service envelope
- The space and configuration required for the crane’s approved unattended condition, distinct from the active hook path alone.
- Interference plan
- The actual coordinated arrangements for overlapping cranes or other obstacles, including relevant operating and parked conditions.
- Support reassessment
- Competent review when ground, excavation, water, loading or structural conditions differ from the approved basis.
- Weather-vaning
- A specified machine behavior allowing relevant alignment with wind under its approved condition, not a universal brake-release instruction.
- Electrical approach control
- The actual applicable separation or protective arrangement near electrical lines, requiring competent jurisdiction-specific assessment rather than a foreign remembered number.
- Designated signaling
- The agreed actual communication authority and method for normal movement, with clear transfer and emergency response arrangements.
- Controlled stop
- A suitable pause or response to uncertainty or hazard under the actual plan, distinct from complete energy isolation.
- Shock loading
- A dynamic load effect caused by abrupt force transfer or motion, which can exceed a simple static weight comparison.
- Snagged load
- A load whose actual restraint or attachment adds uncertainty to the force needed for movement, not merely its known free mass.
- Handover evidence
- Relevant current condition, restrictions, work and defects communicated between responsible operators rather than an empty signature.
- Verified restoration
- Competent confirmation that work or impairment has been addressed and authorized conditions for renewed use are satisfied.