Research on Industrial Engineering

Running head: Operation Network
Operation Network
Student’s name
Institutional affiliation
Date

Operation Network 2
Q1. ANSWERS
Q1.A). Gant chart
Solution
Machine
/ hour
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
A
1 1 1 2 2 2 2
4 3
B 1 1 3 3 3 3 3 3 4 4
C 2 2 4 4 4 4 1 1 3 3 3
Q1B). Answer
Make span
The total production period
6 + 8 + 1 + 3 =18

Operation Network 3
Q1.c). Machine idle time can be obtained by subtracting the total number of the actual hour
worked from the standard hours (Waldherr, Knust, & Briskorn, 2017).
Solution
Machine A
18 – 9 = 9Hours
Machine B
18 – 10 = 8 hours
Machine C
18- 11 = 7 Hours
Total idle time for whole process
9 + 8 + 7 = 24 hours.
The company has paid for this period, but no return is gained.
Q1. D) Waiting time
Solution
Job 1 = 4th and 7th = 2 hours