Question: Following information is available from a snap back time study conducted on a Universal Milling machine. Machines do not need any allowances. Average observed manual

Following information is available from a snap back time study conducted on a Universal Milling machine. Machines do not need any allowances. Average observed manual time = 15 min Average observed milling time (automated) = 3.05 min Performance rating of the operator = 95% Personal and fatigue allowance = 15% Cycle time = Manual time + Machine time Operator produced only 30 products in 12 hour shift

34. If the operator produces 30 of such products per 12 hour shift, what is the efficiency of this operator?

a. 80.9%

b. 92.0%

c. 97.2%

d. 94.5%

The setup time for a batch of 50 products is 2 hours while the production time is 6 minutes for each product.

35. What will be the product manufacturing time for each unit?

a. 5.6 minutes

b. 5.4 minutes

c. 8.4 minutes

d. 6.4 minutes

36. If the batch size goes up to 55, what will be the product manufacturing time for each unit?

a. 2.3 minutes

b. 5 minutes

c. 5.15 minutes

d. 8.18 minutes

37. If the batch size goes down by 45, what will be the product manufacturing time for each unit?

a. 4.5 minutes

b. 8.6 minutes

c. 7 minutes

d. 5.5 minutes

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