Symbols Used in Work Study

The work study is done by means of a stop watch. In work study, all the activities are broken down into five basic types of events and each is represented by a symbol, as follows:

(a) Operation:  It involves a change in the location or condition of a product.
(b) Inspection:  It is an act of checking for correctness of the quantity or quality of the items.
(c) Transport:  It indicates the movement of an item from one location to another.
(d) Delay:  It occurs when something stops the process and a product waits for the next event.
(e) Storage:  It represents a stage when a finished good or raw material awaits an action or when an item has been retained for quite some time for reference purposes.
 

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