Using lathe and milling machines, for 8 hr/day, an operator is cutting down a part to...

 

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Using lathe and milling machines, for 8 hr/day, an operator is cutting down a part to a specific size. Three main elements are needed: A) Set part into Vice, B) Machine part and C) Remove part, inspect it and stack it. Assuming a background noise level of 92 dBA, determine the following: a) b) c) d) e) f) Complete the following time study sheet [Fill all blanks in yelow] and Calculate the total Standard Time for the operation, if the study is acceptable. Using the Figure below, develop MOST analysis for this assembly and calculate the Standard Time [Use same % allowances as in Part (a)]. No. Compare between the results in a) and b). Which of the two values of Standard Time would you recommend? Why? If a new hired operator, who has 85% learning rate, takes 5.5 min to complete the first board, how long would it take to reach the Standard Time recommended from Part c)? [Show all your calculations] If the operator is paid $15/hr, how much would be the earning for a stack of 100 parts? 1) Under day work plan 2) Under standard hour plan. If the operator had an emergency after 1 hour from starting the shift and took a break, how productivity will be affected? [ Show all your calculations]. Activity Conditions Method MOST calculation - No. A B с Code Date Sign. Page 1 2 3 Total No. of Observations Average Total NT Standard Time 4 R W OT NT 105 205 Sequence Model ABG ABP A ABG ABP A A B GAB Р A A B B G A B P A ABG A B P A 110 340 Foreign Elements W1 W2 OT Description 230 235 415 420 للللل texting drinking Fr. TMU R W 100 65 100 325 100 0 100 460 OT NT Finishing Time Starting Time Elapse Time TEBS 120 TEAF Total Check Time 180 520 Effective Time Ineffective Time Total Recorded Time Unaccounted Time Re cording error: Record % error: R 105 90 Time Check 8:47 W 85 OT NT Total Standard Time 1 ₁ 1 Personal Needs Basic Fatigue Variable Fatigue Special Total Allowances% Remarks Using lathe and milling machines, for 8 hr/day, an operator is cutting down a part to a specific size. Three main elements are needed: A) Set part into Vice, B) Machine part and C) Remove part, inspect it and stack it. Assuming a background noise level of 92 dBA, determine the following: a) b) c) d) e) f) Complete the following time study sheet [Fill all blanks in yelow] and Calculate the total Standard Time for the operation, if the study is acceptable. Using the Figure below, develop MOST analysis for this assembly and calculate the Standard Time [Use same % allowances as in Part (a)]. No. Compare between the results in a) and b). Which of the two values of Standard Time would you recommend? Why? If a new hired operator, who has 85% learning rate, takes 5.5 min to complete the first board, how long would it take to reach the Standard Time recommended from Part c)? [Show all your calculations] If the operator is paid $15/hr, how much would be the earning for a stack of 100 parts? 1) Under day work plan 2) Under standard hour plan. If the operator had an emergency after 1 hour from starting the shift and took a break, how productivity will be affected? [ Show all your calculations]. Activity Conditions Method MOST calculation - No. A B с Code Date Sign. Page 1 2 3 Total No. of Observations Average Total NT Standard Time 4 R W OT NT 105 205 Sequence Model ABG ABP A ABG ABP A A B GAB Р A A B B G A B P A ABG A B P A 110 340 Foreign Elements W1 W2 OT Description 230 235 415 420 للللل texting drinking Fr. TMU R W 100 65 100 325 100 0 100 460 OT NT Finishing Time Starting Time Elapse Time TEBS 120 TEAF Total Check Time 180 520 Effective Time Ineffective Time Total Recorded Time Unaccounted Time Re cording error: Record % error: R 105 90 Time Check 8:47 W 85 OT NT Total Standard Time 1 ₁ 1 Personal Needs Basic Fatigue Variable Fatigue Special Total Allowances% Remarks

Answer rating: 100% (QA)

a To estimate the machining time for the two processes 1 Turning The initial diameter of the rod is 225 and needs to be reduced to 162 The cutting vel... View the full answer