A device used for lifting of lowering objects suspended from a hook at the end of retractable chains or cable is called

A device used for lifting of lowering objects suspended from a hook at the end of retractable chains or cable is called

         (a) hoist

         (b) jib crane

         (c) portable elevator

         (d) chain conveyor

A device used for lifting of lowering objects suspended from a hook at the end of retractable chains or cable is called

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