Describe steps to be followed during "Time Study"
In a turning shop, a direct time study was on a step turning. The study was conducted by an experienced industrial engineer and one inexperienced engineer. They agreed precisely on cycle, time shown in Table below, but their opinion on rating of workers was differed. The experienced engineer rated the worker 100% and the other engineer rated the worker 120%. They used 0.10 allowance fraction.
Table
|
Cycle Time
(minutes)
|
Number of
Times observed
|
|
21
25
30
33
|
2
1
1
1
|
Determine the standard time using rating of each engineer. 30