2. METHOD STUDY :EXAMPLE Elmnt No., Element Symbol Time (Minutes) Remarks 1 Put on computer Op 0.2 2 Wait W 0.1 3 Computer is on Op 0.1 4 Msg(Fan Failure) Op 0.05 5 Check Msg Op 0.1 6 Telephone Technician Op 0.2 7 Wait W 15.0 8 Technician Checks Ins 1.2 9 Tells to send to Lab Op 0.2 10 Telephone for attender Op 0.1

3. Elmnt No., Element Symbol Time (Minutes) Remarks 11 Wait W 30.0 12 Attender transports Trans 3.2 13 On Repair Table Storage 1440.0 14 Technician inspects Ins 5.6 15 Tech removes Fan Op 7.2 16 Walks to stores Trans 3.0 17 Waits W 9.0 18 Takes new fan,signs Op 5.0 19 Walks to Lab Trans 3.1 20 Fixes new fan O 8.2

4. Elmnt No., Element Symbol Time (Minutes) Remarks 21 Inspects Ins 2.5 22 Calls for attender O 1.2 23 Waiting W 10.5 24 Attender carries it Trans 2.2 25 Connect to system O 1.2 26 Put on system O 0.3 27 Inspects fan working Ins 2.2 28 Start work O 0.2

5. Operations 13 24.15 Inspections 5 11.6 Transportns 4 11.5 Delays 5 64.6 Storage 1 1440.0 Total 1551.85 25.86 Hrs

11. THERBLIGS 1.Search (Sr) 2.Select (St) 3.Grasp (G) 4.Transport empty (TE) 5.Transport loaded (TL) 6.Hold (H) 7.Release load (RL) 8.Position (P) 9.Pre-position (PP) 10.Inspect (I) 11.Assemble (A) 12.Disassemble (DA) 13.Use (U) 14.Unavoidable delay (UD) 15.Avoidable delay (AD) 16.Plan (Pn) 17.Rest for overcoming fatigue (R) 18.Find (F)

20. Q4)AN INDUSTRIAL ENGINEER CONDUCTED A TIME STUDY FOR A JOB AND STUDY RESULTS ARE SUMMARISED.(TIME IN MINS, RA=12%,CA=3%). IDENTIFY &REMOVE OUT LIERS.COMPUTE BASIC TIME & S.T FOR THE JOB Elmt C1 C2 C3 C4 R Ttl avg NT= OT*R 12% RA= NT*0.12 3% CA= NT* 0.03 1 1.246 1.328 1.298 1.306 90 % 5.178 1.295 1.166 2 0.972 0.895 0.798 0.919 Mc 100 3.584 0.896 0.896 3 0.914 1.875 1.964 1.972 100 % 5.811 1.937 1.937 4 2.121 2.198 2.146 2.421 110 % 8.886 2.222 2.444 5 1.253 1.175 1.413 2.218 100 % 3.841 1.280 1.28 T 7.72 0.92 0.23 8.88