Mobile Crane NCCER Study Guide Questions and Answers | Latest Version | 2024/2025 | Rated A+

Mobile Crane NCCER Study Guide Questions and Answers | Latest Version | 2024/2025 | Rated A+ A crane hooks throat opening must not exceed OSHA: 15% of its original size- OSHA 5% of its original size- ASME A trial lift with unoccupied personnel platform loaded must be: loaded at least with the anticipated weight All domestic wire rope slings have a safety design lifting factor of: 5 to 1 Backward stability is tested with Basic boom at maximum angle with no load Before a spreader bar or beam can be used, they must be tested and approaved By order of strength which is correct Basket, Vertical, Choker Crane hooks must not be twisted in excess of 10 degrees Crane hooks must not be twisted in excess of 10 degrees-OSHA 5 degrees- ASME Eccentric main boom tip reeving casues twisting of the boom How does the operator determine if the correct load chart is being used? Matching serial numbers How does the operator verify the LMs boom length or load radius reading? accutal measurements How is safe working load affected if the lifting hook is loaded off center? it is decreased How many broke wires in one strand in one lay of a wire rope slings will make it necessary to replace the sling? 5 how many broken wires in one strand in one lay of a wire rope will make it necessary to replace the wire rope 3 How many broken wires must be present in one strand of one lay for running wire rope to be removed from service? 3 How many randomly broken wires must there be to remove a running wire rope from service? 6 How many randomly distributed broken wires in one lay of a wire rope sling will make it necessary to replace the sling 10