GATE PI 2023 Paper 1 — page 14

Questions 40–42 of 65. Imported answers require review unless explicitly marked reviewed.

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

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Match the engineering materials at room temperature with the given crystal structures.

Engineering material: P—Si; Q—Fe; R—Al; S—Zn.

Crystal structure: 1—FCC; 2—HCP; 3—Diamond Cubic; 4—BCC.

Your answerChoose one option.

P – 3, Q – 4, R – 1, S – 2

P – 2, Q – 1, R – 4, S – 3

P – 2, Q – 4, R – 1, S – 3

P – 3, Q – 1, R – 4, S – 2

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Match the recording techniques used in method study with the most appropriate application areas.

Recording technique: P—Outline process chart; Q—String diagram; R—Multiple activity chart; S—Two-handed process chart.

Application area: 1—Factory layout – movement of workers; 2—Gang work; 3—Complete manufacturing sequence of a product; 4—Manual assembly of nuts and bolts.

Your answerChoose one option.

P – 3, Q – 4, R – 2, S – 1

P – 3, Q – 1, R – 2, S – 4

P – 2, Q – 4, R – 3, S – 1

P – 2, Q – 1, R – 3, S – 4

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2023 · Paper 1

Question 40

Question 41

Question 42