49. What is the Availability? a. 0.903 b. 0.796 c. 0.896 d. 0.816 50. What is the overall Equipment Efficiency (OEE)? a. 60.15% b. 64.05% c. 89.90% d. 95.07% Following information will be required to answer questions 56-60. A production process is running 12 hours a day. The breakdown information is given in the following table for 10 days. Day 2 1 4 5 6 7 8 9 10 5 Breakdowns (1) Total production (units) 0 90 2 75 3 65 4 81 0 60 1 83 2 86 3 0 75 67 80 47 51. What is the operating time (hrs)? a. 120 b. 100 C. 75 d. 125 52. What is the total failure time (hrs)? a 10 b. 20 C. 30 d. 40 4 53/What is the value of MTBF (hrs)? a. 10.51 b. 11.6 C. 14.28 d. 23.2 c 54. What is the value of MTTR (hrs)? a. 2.85 b.3.15 C. 2.8 d. 3.41 4065 55. What is the closest value for Statistical Availability? Following information will be required to answer questions 51-55. Breakdowns and defective products manufactured over the last 13 days on a CNC-27 machine are presented in the following table: Day 1 2 3 5 6 7 8 9 10 11 12 Breakdowns (1) 3 5 6 12 1 Detective items 180 300 75 125 100 250 2100 65 70 120 58 47 13 The machine's total setup time is 200 minutes, and in those 13 days the machine produced a total of 6000 acceptable products. The company works 24/7. The theoretical cycle time is 2 minutes per part. 49. What is the Availability? a. 0.903 b. 0.796 c. 0.896 d. 0.816 50. What is the overall Equipment Efficiency (OEE)? a. 60.15% b. 64.05% c. 89.90% d. 95.07% Following information will be required to answer questions 56-60. A production process is running 12 hours a day. The breakdown information is given in the following table for 10 days. Day 2 1 4 5 6 7 8 9 10 5 Breakdowns (1) Total production (units) 0 90 2 75 3 65 4 81 0 60 1 83 2 86 3 0 75 67 80 47 51. What is the operating time (hrs)? a. 120 b. 100 C. 75 d. 125 52. What is the total failure time (hrs)? a 10 b. 20 C. 30 d. 40 4 53/What is the value of MTBF (hrs)? a. 10.51 b. 11.6 C. 14.28 d. 23.2 c 54. What is the value of MTTR (hrs)? a. 2.85 b.3.15 C. 2.8 d. 3.41 4065 55. What is the closest value for Statistical Availability? Following information will be required to answer questions 51-55. Breakdowns and defective products manufactured over the last 13 days on a CNC-27 machine are presented in the following table: Day 1 2 3 5 6 7 8 9 10 11 12 Breakdowns (1) 3 5 6 12 1 Detective items 180 300 75 125 100 250 2100 65 70 120 58 47 13 The machine's total setup time is 200 minutes, and in those 13 days the machine produced a total of 6000 acceptable products. The company works 24/7. The theoretical cycle time is 2 minutes per part