COO Practice Written Exam
During crane assembly/disassembly, the operator must identify if he/she can get within how many feet from a power line up to 350Kv? - 20 ft. During each shift, the operator shall visibly inspect: - Control mechanisms, wire rope, hooks and latches A frequent inspection are to be documented monthly and retention of records for how long? - 3 months Most crane manufacturers require what percentage of reduction to load chart during high winds? - 50% Cranes not in regular use that are idle for 3 months or more shall have a: - Frequent (monthly) inspection Lubricants on rope shall not be the type that will: - Hinder inspections What type of person must perform the shift inspection of wire rope? - Competent person Why does OSHA state that boom hoist reeving shall not be of fiber core or rotation resistant rope? - Sheaves are sometimes close together creating heating and premature rope damage, potential reverse bending, fiber core can be weaker rope due to design, these ropes can be difficult to inspect. What is the purpose of seizing wire rope? - Prevents core retraction of some type of rope, prevents unraveling of strands
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