Advanced rigging test 2 Question s with CompleteSolutions 1) What is meant by the term "two blocking - Correct Answer The load block contacts the boom point sheaves.2) lifting 20,000lbs, with a 2-leg bridle sling at a 30 horizontal sling angle, what is force applied to each leg? - Correct Answer 20,000 3) In multiple crane lifts using an equalizer beam, the weight of the beam should be considered: - Correct Answer Part of the load weight 4) What is required if there is a deviation in the lift plan? - Correct Answer A new lift plan 5) On level ground using skids and rollers, what percent of the weight of the load should yield the required line pull as a general rule of thumb? - Correct Answer 5% 6) All of the following are results of unbalanced reeving of the hook block EXCEPT: - Correct Answer Wear on the hook 7) Before a spreader bar or beams can be used they MUST have been: - Correct Answer Tested and approved 8) When materials are being hoisted to an upper level, a tag line is used to: - Correct Answer Help control the load 9) Two cranes are lifting 100 tons . If crane A has 40 % of the load , how much weight will crane B have on its hook? - Correct Answer 120,000 Ibs.10) To confirm the rated capacity of a specific sling, consult the manufacturer's: - Correct Answer Sling tag 1 / 2
11) OSHA regulations require hook replacement if the opening exceeds what percentage of its original throat opening? - Correct Answer 15% 12) At what percentage of increase in length should a chain sling be removed from service? - Correct Answer 5% 13) The methodical process that attempts to identify hazards and devise plans to overcome or eliminate hazards which may interfere with crane or rigging is called: - Correct Answer Lift plan 14) What provides additional control of a load being lifted? - Correct Answer Tag lines 15) When traveling on a rubber tire mobile crane, how should the boom be positioned? - Correct Answer In line with the direction of travel 16) Before performing pick and carry operations with any mobile crane, it is important to: - Correct Answer Refer to the manufacturer's capacity chart 17 ) According to ASME B30.5 , a two crane lift is signaled by - Correct Answer One designated person 18) How much force would be required to move an object up an inclined plane compared to lifting it vertically? - Correct Answer Less force 20) All of the following are reasons for stopping personnel lifting operations EXCEPT - Correct Answer There are no tag lines 22) The point of any object's weight can be assumed to be concentrated at: - Correct Answer Center of gravity 23) In a spur-gear chain hoist with a two chain system, the endless chain is used to - Correct Answer Raise and lower the load
- / 2