millwright level 2 Rigging Questions and Answers with complete solution

saddle - the safe working load of a rigging hook is accurate only when the load is suspended from the ______________ of the hook 15 - OSHA requires that a hook be replaced if the throat has opened _____ percent or more from it's original size. 40 - A hook that is point loaded could theoretically carry about ________ percent of the rated load. Shackels - Slings are attached together using ___________. 1 1/2 - tapped holes used with screwed-in eye bolts should have a minimum depth of ______________ times the bolt diameter. equalizer plate - to level loads when the legs of a sling are unequal,_____________ can be used. 125 - Custom-fabricated spreader and equalizer beams should be tested at ____________ percent of their rated capacity. spreader beams - long loads are supported during lift operations with _________________. metal mesh - slings best suited for situations where the load is abrasive,hot,or tends to cut is a (n)_____________ sling. diameter of the surface the sling is wrapped around - The term D/d ratio refers to the relationship between the sling and the Dredging and other marine work requires _________ slings because they withstand corrosion better - chaina chain sling should be discarded if any portion of the chain is worn by ____________ percent or more. - 15 tag lines should be attached to a load where it will give the - greatest mechanical advantage 1/2 to 6 - the capacity range of come-alongs is ____________ tons the ratchet jack can lift heavier loads than the screw jack or hydraulic jack. - false hydraulic - the most useful general purpose jack is the ______________ jack. What action is signaled by tapping your fist on your head, then using regular hand signals? - Use main hoist. Dog everything, the operator then - make no machine movement