CACES R487 case studies
CACES R487 · Put your knowledge to work in context.
This independent study page provides practice for CACES R487. Its editorial learning areas include Tower-crane types, mechanisms and R487 scope; Chart interpretation, load geometry and rigging calculations; Site support, wind, interference and environmental hazards; Inspection, signals, controlled operation and handover. The questions develop subject knowledge and application through worked reasoning, distinctions between competing answers, and practical scenarios. Study the relevant guide before attempting a mixed set, then explain the evidence or calculation that supports each answer. Topics on this exam: Tower-crane types, mechanisms and R487 scope, Chart interpretation, load geometry and rigging calculations, Site support, wind, interference and environmental hazards, and Inspection, signals, controlled operation and handover. The CACES R487 case studies are 4 cases and about 621 words.
1A category label is mistaken for all crane permissions
A fictional trainee has practiced a cabin-controlled distributing-jib crane and assumes this permits every automated-assembly, luffing-jib, remote-control and rail-travel arrangement. The trainee also believes operator assessment alone qualifies them to erect or alter the crane.
147 words, under 1 min2A gross allowance is treated as object capacity
A fictional chart permits a gross suspended mass of four thousand kilograms under the supplied configuration. The hook block, bucket and slings weigh one hundred eighty, three hundred twenty and fifty kilograms respectively.
158 words, under 1 min3A low mass hides a large wind-sensitive surface
A fictional tower crane is scheduled to move a broad panel whose mass is within the listed gross allowance after deductions. The load presents a large projected area, gusts are increasing and nearby work has narrowed the planned clear path.
158 words, under 1 min4Conflicting signals are accepted under time pressure
A fictional crew prepares a blind landing while two people give different normal commands over an unreliable radio channel. An incoming operator receives no handover about a damaged control and a temporary work-zone change.
158 words, under 1 min