The employer shall ensure at a construction site of building or other construction work that,-
(a) when a sling is used to hoist long materials, a lifting beam is used to space the sling legs for proper balance and when a load is suspended at two or more points with slings, the eyes of lifting legs of such slings are shackled together and such shake or eyes of the shackled slings are placed on the hook or the eyes of such lifting legs are shackled directly to the hoisting block, ball or balance beam, as the case may be:
(b) every container or receptacle used for raising or lowering stone, bricks, tiles, slates or other similar objects is so enclosed with the hoist as to prevent fall of such objects;
(c) a loaded wheel barrow placed directly on a platform of a hoist for raising or lowering of such wheel barrows is so secured that such wheel barrows cannot move and such platform is enclosed to prevent the fall of the contents kept in such wheel barrow; and
(d) landings of a hoist are so designed and arranged that building workers on such hoist are not required to lean out into empty space for loading and unloading any material from such hoist.