GATE PI 2023 PI Q40: Production control

Six jobs (1, 2, 3, 4, 5, 6) undergo drilling, followed by reaming operation. The time required for each operation is given as

Job | Drilling (min) | Reaming (min) 1 | 30 | 45 2 | 30 | 15 3 | 60 | 40 4 | 20 | 25 5 | 35 | 28 6 | 45 | 70

The sequence of processing the jobs, using the Johnson’s rule, is

Your answerChoose one option.

4 – 1 – 6 – 3 – 5 – 2

4 – 6 – 1 – 5 – 3 – 2

2 – 1 – 6 – 3 – 5 – 4

2 – 1 – 3 – 6 – 5 – 4

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

EXPLORE & PRACTISE

Paper and topic context

See where this question comes from and choose what to practise next.

Explore more previous year questions using this question’s imported topic tags.

You’re not logged in. Log in or create an account to see discussions and add comments.