Student AI Hub

Home › GATE previous year papers › GATE IN › 2023

GATE 2023 IN question paper with official answer key

The complete GATE 2023 Instrumentation Engineering (IN) 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.

Practise free with timer & scoreJump to the answer key

GATE 2023 IN paper at a glance

Questions
65
Total marks
100
General Aptitude
10 questions · 15 marks
IN subject
55 questions · 85 marks
Question types
31 MCQ · 1 MSQ · 33 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

GATE 2023 IN question 1
Show answer

Answer: D

Q.2 · General Aptitude · 1 mark · MCQ

GATE 2023 IN question 2
Show answer

Answer: C

Q.3 · General Aptitude · 1 mark · MCQ

GATE 2023 IN question 3
Show answer

Answer: D

Q.4 · General Aptitude · 1 mark · MCQ

GATE 2023 IN question 4
Show answer

Answer: C

Q.5 · General Aptitude · 1 mark · MCQ

GATE 2023 IN question 5
Show answer

Answer: B

Q.6 · General Aptitude · 2 marks · MCQ

GATE 2023 IN question 6
Show answer

Answer: Marks to all (question dropped)

Q.7 · General Aptitude · 2 marks · MCQ

GATE 2023 IN question 7
Show answer

Answer: A

Q.8 · General Aptitude · 2 marks · MCQ

GATE 2023 IN question 8
Show answer

Answer: D

Q.9 · General Aptitude · 2 marks · MCQ

GATE 2023 IN question 9
Show answer

Answer: A

Q.10 · General Aptitude · 2 marks · MCQ

GATE 2023 IN question 10
Show answer

Answer: D

Q.11 · IN · 1 mark · MCQ

GATE 2023 IN question 11
Show answer

Answer: A

Q.12 · IN · 1 mark · MCQ

GATE 2023 IN question 12
Show answer

Answer: A

Q.13 · IN · 1 mark · MCQ

GATE 2023 IN question 13
Show answer

Answer: D

Q.14 · IN · 1 mark · MCQ

GATE 2023 IN question 14
Show answer

Answer: C

Q.15 · IN · 1 mark · MCQ

GATE 2023 IN question 15
Show answer

Answer: A

Q.16 · IN · 1 mark · MCQ

GATE 2023 IN question 16
Show answer

Answer: A

Q.17 · IN · 1 mark · MCQ

GATE 2023 IN question 17
Show answer

Answer: D

Q.18 · IN · 1 mark · MCQ

GATE 2023 IN question 18
Show answer

Answer: B

Q.19 · IN · 1 mark · MCQ

GATE 2023 IN question 19
Show answer

Answer: B

Q.20 · IN · 1 mark · MCQ

GATE 2023 IN question 20
Show answer

Answer: C

Q.21 · IN · 1 mark · MCQ

GATE 2023 IN question 21
Show answer

Answer: C

Q.22 · IN · 1 mark · MCQ

GATE 2023 IN question 22
Show answer

Answer: B

Q.23 · IN · 1 mark · MCQ

GATE 2023 IN question 23
Show answer

Answer: A

Q.24 · IN · 1 mark · NAT

GATE 2023 IN question 24
Show answer

Answer: 2

Q.25 · IN · 1 mark · NAT

GATE 2023 IN question 25
Show answer

Answer: 2

Q.26 · IN · 1 mark · NAT

GATE 2023 IN question 26
Show answer

Answer: 1110

Q.27 · IN · 1 mark · NAT

GATE 2023 IN question 27
Show answer

Answer: 4.9 to 5.1

Q.28 · IN · 1 mark · NAT

GATE 2023 IN question 28
Show answer

Answer: -3

Q.29 · IN · 1 mark · NAT

GATE 2023 IN question 29
Show answer

Answer: 25

Q.30 · IN · 1 mark · NAT

GATE 2023 IN question 30
Show answer

Answer: 0.99 to 1.01

Q.31 · IN · 1 mark · NAT

GATE 2023 IN question 31
Show answer

Answer: 1

Q.32 · IN · 1 mark · NAT

GATE 2023 IN question 32
Show answer

Answer: -0.5

Q.33 · IN · 1 mark · NAT

GATE 2023 IN question 33
Show answer

Answer: 0.95 to 1.05

Q.34 · IN · 1 mark · NAT

GATE 2023 IN question 34
Show answer

Answer: 0

Q.35 · IN · 1 mark · NAT

GATE 2023 IN question 35
Show answer

Answer: 0

Q.36 · IN · 2 marks · MCQ

GATE 2023 IN question 36
Show answer

Answer: A

Q.37 · IN · 2 marks · MCQ

GATE 2023 IN question 37
Show answer

Answer: C

Q.38 · IN · 2 marks · MCQ

GATE 2023 IN question 38
Show answer

Answer: A

Q.39 · IN · 2 marks · MCQ

GATE 2023 IN question 39
Show answer

Answer: A

Q.40 · IN · 2 marks · MCQ

GATE 2023 IN question 40
Show answer

Answer: C

Q.41 · IN · 2 marks · MCQ

GATE 2023 IN question 41
Show answer

Answer: A

Q.42 · IN · 2 marks · MCQ

GATE 2023 IN question 42
Show answer

Answer: C

Q.43 · IN · 2 marks · MCQ

GATE 2023 IN question 43
Show answer

Answer: B

Q.44 · IN · 2 marks · MSQ

GATE 2023 IN question 44
Show answer

Answer: B, C

Q.45 · IN · 2 marks · NAT

GATE 2023 IN question 45
Show answer

Answer: 0.62 to 0.64

Q.46 · IN · 2 marks · NAT

GATE 2023 IN question 46
Show answer

Answer: 1.4 to 1.5

Q.47 · IN · 2 marks · NAT

GATE 2023 IN question 47
Show answer

Answer: 0.43 to 0.45

Q.48 · IN · 2 marks · NAT

GATE 2023 IN question 48
Show answer

Answer: 0.9 to 1.1

Q.49 · IN · 2 marks · NAT

GATE 2023 IN question 49
Show answer

Answer: 240

Q.50 · IN · 2 marks · NAT

GATE 2023 IN question 50
Show answer

Answer: -2 to 2

Q.51 · IN · 2 marks · NAT

GATE 2023 IN question 51
Show answer

Answer: 1.77 to 1.78

Q.52 · IN · 2 marks · NAT

GATE 2023 IN question 52
Show answer

Answer: 34.5 to 35.5

Q.53 · IN · 2 marks · NAT

GATE 2023 IN question 53
Show answer

Answer: 0.98 to 1.02

Q.54 · IN · 2 marks · NAT

GATE 2023 IN question 54
Show answer

Answer: 4 to 4.1

Q.55 · IN · 2 marks · NAT

GATE 2023 IN question 55
Show answer

Answer: 17 to 18

Q.56 · IN · 2 marks · NAT

GATE 2023 IN question 56
Show answer

Answer: 0.64 to 0.7

Q.57 · IN · 2 marks · NAT

GATE 2023 IN question 57
Show answer

Answer: 0.9 to 1.1

Q.58 · IN · 2 marks · NAT

GATE 2023 IN question 58
Show answer

Answer: 0.95 to 1.05

Q.59 · IN · 2 marks · NAT

GATE 2023 IN question 59
Show answer

Answer: 0.49 to 0.51

Q.60 · IN · 2 marks · NAT

GATE 2023 IN question 60
Show answer

Answer: 99 to 101

Q.61 · IN · 2 marks · NAT

GATE 2023 IN question 61
Show answer

Answer: 2.1 to 2.5

Q.62 · IN · 2 marks · NAT

GATE 2023 IN question 62
Show answer

Answer: 1.9 to 2.1

Q.63 · IN · 2 marks · NAT

GATE 2023 IN question 63
Show answer

Answer: -8

Q.64 · IN · 2 marks · NAT

GATE 2023 IN question 64
Show answer

Answer: 0.009 to 0.011

Q.65 · IN · 2 marks · NAT

GATE 2023 IN question 65
Show answer

Answer: 99 to 101

GATE 2023 IN official answer key

From the official GATE answer key ↗. Numerical answers are accepted anywhere in the range shown.

Q.SectionTypeMarksAnswer
1GAMCQ1D
2GAMCQ1C
3GAMCQ1D
4GAMCQ1C
5GAMCQ1B
6GAMCQ2Marks to all (question dropped)
7GAMCQ2A
8GAMCQ2D
9GAMCQ2A
10GAMCQ2D
11INMCQ1A
12INMCQ1A
13INMCQ1D
14INMCQ1C
15INMCQ1A
16INMCQ1A
17INMCQ1D
18INMCQ1B
19INMCQ1B
20INMCQ1C
21INMCQ1C
22INMCQ1B
23INMCQ1A
24INNAT12
25INNAT12
26INNAT11110
27INNAT14.9 to 5.1
28INNAT1-3
29INNAT125
30INNAT10.99 to 1.01
31INNAT11
32INNAT1-0.5
33INNAT10.95 to 1.05
34INNAT10
35INNAT10
36INMCQ2A
37INMCQ2C
38INMCQ2A
39INMCQ2A
40INMCQ2C
41INMCQ2A
42INMCQ2C
43INMCQ2B
44INMSQ2B, C
45INNAT20.62 to 0.64
46INNAT21.4 to 1.5
47INNAT20.43 to 0.45
48INNAT20.9 to 1.1
49INNAT2240
50INNAT2-2 to 2
51INNAT21.77 to 1.78
52INNAT234.5 to 35.5
53INNAT20.98 to 1.02
54INNAT24 to 4.1
55INNAT217 to 18
56INNAT20.64 to 0.7
57INNAT20.9 to 1.1
58INNAT20.95 to 1.05
59INNAT20.49 to 0.51
60INNAT299 to 101
61INNAT22.1 to 2.5
62INNAT21.9 to 2.1
63INNAT2-8
64INNAT20.009 to 0.011
65INNAT299 to 101

Practise this paper with a timer

On Student AI Hub, GATE previous year papers are free: answer on screen, get instant checking with the official key and see your score. No AI credits used.

Start free

More GATE IN papers

GATE 2026 INQuestion paper + answer keyGATE 2025 INQuestion paper + answer keyGATE 2024 INQuestion paper + answer keyGATE 2022 INQuestion paper + answer key All GATE IN papersInstrumentation Engineering All GATE papersEvery branch