Manag., January-2017-Q28
0. A graphic tool to trace the interaction of several workers with one machine is termed as
- Option : A
- Explanation : Definitions:
1. A multiple activity chart is a chart in which the activities of more than one worker or machine are recorded. Activities are recorded on a common time scale to show the inter-relationship.
2. “A Multiple activity chart is a form of process chart recording the related sequence of work of a number of operators and/or machines on common time scale.”
Types of Multiple Activity Charts : The multiple activity charts is broadly classified as worker-machine process chart and gang process chart. A worker-machine chart is used for recording and analysing the working relationship between operator and machine on which he works. It is drawn to time scale. Analysis of the chart can help in better utilisation of both worker and machine time. The possibility of one worker attending more than one machine is also sought from the use of this chart.
A gang process chart is similar to worker machine chart, and is used when several workers operate one machine. The chart helps in exploring the possibility of reducing both the operator time and idle machine time.
Symbols Used in Multiple Activity Chart : The multiple activity charts use three symbols as shown in Table.
Symbol Description
Blank rectangle or space is used to show that one of the two i.e., man or machine is idle.
Dark coloured rectangular space shows position/period of independent activity for man/ machine is busy.
Stripped space shows when both man and machine are working together i.e., combined activity.
