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GATE 2023 PI question paper with official answer key
The complete GATE 2023 Production and Industrial Engineering (PI) paper: 65 questions for 100 marks, with the official answer to every question. Try each question first, then open its answer, or practise the whole paper free with a 3-hour timer and your score.
GATE 2023 PI paper at a glance
- Questions
- 65
- Total marks
- 100
- General Aptitude
- 10 questions · 15 marks
- PI subject
- 55 questions · 85 marks
- Question types
- 38 MCQ · 0 MSQ · 27 NAT
- Duration
- 3 hours
In GATE, each MCQ carries 1 or 2 marks; a wrong MCQ answer costs one-third of its marks (−1/3 for a 1-mark and −2/3 for a 2-mark question). MSQ (multiple select) and NAT (numerical answer) questions have no negative marking. In this paper, 1 question was dropped by GATE and given full marks to everyone.
All 65 questions
Each question is shown exactly as in the official paper. Tap “Show answer” to check yourself.
Q.1 · General Aptitude · 1 mark · MCQ
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Answer: B
Q.2 · General Aptitude · 1 mark · MCQ
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Answer: C
Q.3 · General Aptitude · 1 mark · MCQ
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Answer: B
Q.4 · General Aptitude · 1 mark · MCQ
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Answer: D
Q.5 · General Aptitude · 1 mark · MCQ
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Answer: C
Q.6 · General Aptitude · 2 marks · MCQ
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Answer: D
Q.7 · General Aptitude · 2 marks · MCQ
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Answer: A
Q.8 · General Aptitude · 2 marks · MCQ
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Answer: C
Q.9 · General Aptitude · 2 marks · MCQ
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Answer: A
Q.10 · General Aptitude · 2 marks · MCQ
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Answer: D
Q.11 · PI · 1 mark · MCQ
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Answer: Marks to all (question dropped)
Q.12 · PI · 1 mark · MCQ
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Answer: B
Q.13 · PI · 1 mark · MCQ
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Answer: A
Q.14 · PI · 1 mark · MCQ
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Answer: B
Q.15 · PI · 1 mark · MCQ
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Answer: A
Q.16 · PI · 1 mark · MCQ
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Answer: B
Q.17 · PI · 1 mark · MCQ
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Answer: A
Q.18 · PI · 1 mark · MCQ
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Answer: D
Q.19 · PI · 1 mark · MCQ
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Answer: D
Q.20 · PI · 1 mark · MCQ
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Answer: C
Q.21 · PI · 1 mark · MCQ
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Answer: A
Q.22 · PI · 1 mark · MCQ
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Answer: C
Q.23 · PI · 1 mark · MCQ
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Answer: C
Q.24 · PI · 1 mark · MCQ
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Answer: A
Q.25 · PI · 1 mark · MCQ
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Answer: C
Q.26 · PI · 1 mark · MCQ
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Answer: B
Q.27 · PI · 1 mark · NAT
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Answer: 0.5 to 0.7
Q.28 · PI · 1 mark · NAT
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Answer: 0.32 to 0.36
Q.29 · PI · 1 mark · NAT
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Answer: 7200
Q.30 · PI · 1 mark · NAT
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Answer: 1
Q.31 · PI · 1 mark · NAT
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Answer: 2.3 to 2.6
Q.32 · PI · 1 mark · NAT
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Answer: 0.75 to 0.85
Q.33 · PI · 1 mark · NAT
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Answer: 2.6 to 2.95
Q.34 · PI · 1 mark · NAT
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Answer: 810
Q.35 · PI · 1 mark · NAT
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Answer: 25 to 28
Q.36 · PI · 2 marks · MCQ
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Answer: C
Q.37 · PI · 2 marks · MCQ
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Answer: A
Q.38 · PI · 2 marks · MCQ
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Answer: B
Q.39 · PI · 2 marks · MCQ
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Answer: A
Q.40 · PI · 2 marks · MCQ
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Answer: A
Q.41 · PI · 2 marks · MCQ
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Answer: A
Q.42 · PI · 2 marks · MCQ
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Answer: B
Q.43 · PI · 2 marks · MCQ
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Answer: D
Q.44 · PI · 2 marks · MCQ
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Answer: D
Q.45 · PI · 2 marks · MCQ
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Answer: C
Q.46 · PI · 2 marks · MCQ
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Answer: A
Q.47 · PI · 2 marks · MCQ
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Answer: A
Q.48 · PI · 2 marks · NAT
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Answer: 3.75 to 3.85
Q.49 · PI · 2 marks · NAT
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Answer: 1
Q.50 · PI · 2 marks · NAT
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Answer: 71 to 76 or 1150 to 1210
Q.51 · PI · 2 marks · NAT
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Answer: 0.82 to 0.84
Q.52 · PI · 2 marks · NAT
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Answer: 0.8 to 0.84
Q.53 · PI · 2 marks · NAT
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Answer: 43
Q.54 · PI · 2 marks · NAT
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Answer: 10000
Q.55 · PI · 2 marks · NAT
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Answer: 8 to 8.1
Q.56 · PI · 2 marks · NAT
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Answer: 0.5
Q.57 · PI · 2 marks · NAT
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Answer: 88 to 95
Q.58 · PI · 2 marks · NAT
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Answer: 7.1 to 7.4
Q.59 · PI · 2 marks · NAT
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Answer: 200
Q.60 · PI · 2 marks · NAT
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Answer: 142 to 146
Q.61 · PI · 2 marks · NAT
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Answer: 1595 to 1605
Q.62 · PI · 2 marks · NAT
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Answer: 32 to 34
Q.63 · PI · 2 marks · NAT
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Answer: 2.8 to 3.1
Q.64 · PI · 2 marks · NAT
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Answer: 1998 to 2002
Q.65 · PI · 2 marks · NAT
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Answer: 280000
GATE 2023 PI official answer key
From the official GATE answer key ↗. Numerical answers are accepted anywhere in the range shown.
| Q. | Section | Type | Marks | Answer |
|---|---|---|---|---|
| 1 | GA | MCQ | 1 | B |
| 2 | GA | MCQ | 1 | C |
| 3 | GA | MCQ | 1 | B |
| 4 | GA | MCQ | 1 | D |
| 5 | GA | MCQ | 1 | C |
| 6 | GA | MCQ | 2 | D |
| 7 | GA | MCQ | 2 | A |
| 8 | GA | MCQ | 2 | C |
| 9 | GA | MCQ | 2 | A |
| 10 | GA | MCQ | 2 | D |
| 11 | PI | MCQ | 1 | Marks to all (question dropped) |
| 12 | PI | MCQ | 1 | B |
| 13 | PI | MCQ | 1 | A |
| 14 | PI | MCQ | 1 | B |
| 15 | PI | MCQ | 1 | A |
| 16 | PI | MCQ | 1 | B |
| 17 | PI | MCQ | 1 | A |
| 18 | PI | MCQ | 1 | D |
| 19 | PI | MCQ | 1 | D |
| 20 | PI | MCQ | 1 | C |
| 21 | PI | MCQ | 1 | A |
| 22 | PI | MCQ | 1 | C |
| 23 | PI | MCQ | 1 | C |
| 24 | PI | MCQ | 1 | A |
| 25 | PI | MCQ | 1 | C |
| 26 | PI | MCQ | 1 | B |
| 27 | PI | NAT | 1 | 0.5 to 0.7 |
| 28 | PI | NAT | 1 | 0.32 to 0.36 |
| 29 | PI | NAT | 1 | 7200 |
| 30 | PI | NAT | 1 | 1 |
| 31 | PI | NAT | 1 | 2.3 to 2.6 |
| 32 | PI | NAT | 1 | 0.75 to 0.85 |
| 33 | PI | NAT | 1 | 2.6 to 2.95 |
| 34 | PI | NAT | 1 | 810 |
| 35 | PI | NAT | 1 | 25 to 28 |
| 36 | PI | MCQ | 2 | C |
| 37 | PI | MCQ | 2 | A |
| 38 | PI | MCQ | 2 | B |
| 39 | PI | MCQ | 2 | A |
| 40 | PI | MCQ | 2 | A |
| 41 | PI | MCQ | 2 | A |
| 42 | PI | MCQ | 2 | B |
| 43 | PI | MCQ | 2 | D |
| 44 | PI | MCQ | 2 | D |
| 45 | PI | MCQ | 2 | C |
| 46 | PI | MCQ | 2 | A |
| 47 | PI | MCQ | 2 | A |
| 48 | PI | NAT | 2 | 3.75 to 3.85 |
| 49 | PI | NAT | 2 | 1 |
| 50 | PI | NAT | 2 | 71 to 76 or 1150 to 1210 |
| 51 | PI | NAT | 2 | 0.82 to 0.84 |
| 52 | PI | NAT | 2 | 0.8 to 0.84 |
| 53 | PI | NAT | 2 | 43 |
| 54 | PI | NAT | 2 | 10000 |
| 55 | PI | NAT | 2 | 8 to 8.1 |
| 56 | PI | NAT | 2 | 0.5 |
| 57 | PI | NAT | 2 | 88 to 95 |
| 58 | PI | NAT | 2 | 7.1 to 7.4 |
| 59 | PI | NAT | 2 | 200 |
| 60 | PI | NAT | 2 | 142 to 146 |
| 61 | PI | NAT | 2 | 1595 to 1605 |
| 62 | PI | NAT | 2 | 32 to 34 |
| 63 | PI | NAT | 2 | 2.8 to 3.1 |
| 64 | PI | NAT | 2 | 1998 to 2002 |
| 65 | PI | NAT | 2 | 280000 |
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