Which of the following can best assure operator proficiency and safety? Manufacture's loading rating charts for cranes must be: Sling angles affect the actual stress on each leg of the sling. What is the min requited clearance when operating a crane in the vicinity of overhead electrical transmission lines with a voltage of 50,000 volts or less? New shackles put into the weight handling equipment program are required to have all of the following marking EXCEPT: Crane Operators at Naval Activities may be required to operate various types of cranes for which they hold license.
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