GATE 2021 Answer Key IN Instrumentation Engineering
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GATE 2021 Answer Key IN Instrumentation Engineering is available here for free download. Published by IIT for Graduate Aptitude Test in Engineering, this answer key can be viewed online or downloaded as a PDF (3 pages). Candidates preparing for Graduate Aptitude Test in Engineering can use GATE 2021 Answer Key IN Instrumentation Engineering to understand the exam pattern, the type of questions asked, and the overall difficulty level.
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GATE 2021 Answer Key IN Instrumentation Engineering – Text
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📄 View text version (3 pages)
Page 1
Answer Keys and Marks for Subject/Paper: Instrumentation Engineering (IN)
1 1 MCQ GA D 1 1/3
2 1 MCQ GA B 1 1/3
3 1 MCQ GA C 1 1/3
4 1 MCQ GA B 1 1/3
5 1 MCQ GA C 1 1/3
6 1 MCQ GA B 2 2/3
7 1 MCQ GA A 2 2/3
8 1 MCQ GA A 2 2/3
9 1 MCQ GA B 2 2/3
10 1 MCQ GA C 2 2/3
1 1 MCQ IN A 1 1/3
2 1 MCQ IN C 1 1/3
3 1 MCQ IN A 1 1/3
4 1 MCQ IN C 1 1/3
5 1 MCQ IN D 1 1/3
6 1 MCQ IN C 1 1/3
7 1 MCQ IN A 1 1/3
8 1 MCQ IN B 1 1/3
9 1 MSQ IN A; B 1 0
10 1 MSQ IN A; D 1 0
11 1 MSQ IN A; C 1 0
Page 2
13 1 NAT IN -1 to -1 1 0
14 1 NAT IN 1 to 1 1 0
15 1 NAT IN 10 to 10 1 0
16 1 NAT IN 0.2 to 0.2 1 0
17 1 NAT IN 4.9 to 5.1 1 0
1000.25 to
18 1 NAT IN 1 0
1000.25
19 1 NAT IN 1333 to 1360 1 0
20 1 NAT IN 10 to 10 1 0
21 1 NAT IN 15.0 to 15.5 1 0
22 1 NAT IN 650 to 650 1 0
23 1 NAT IN 100 to 100 1 0
24 1 NAT IN 0 to 0 1 0
25 1 NAT IN 4 to 4 1 0
26 1 MCQ IN B 2 2/3
27 1 MCQ IN B 2 2/3
28 1 MCQ IN A 2 2/3
29 1 MCQ IN A 2 2/3
30 1 MCQ IN C 2 2/3
31 1 MCQ IN C 2 2/3
32 1 MCQ IN D 2 2/3
33 1 MCQ IN B 2 2/3
34 1 MCQ IN D 2 2/3
Page 3
36 1 MCQ IN B 2 2/3
37 1 NAT IN 0.45 to 0.55 2 0
38 1 NAT IN 4 to 4 2 0
39 1 NAT IN 2.7 to 2.9 2 0
40 1 NAT IN 10 to 10 2 0
41 1 NAT IN 30 to 30 2 0
42 1 NAT IN 39 to 40 2 0
43 1 NAT IN 0.3 to 0.35 2 0
44 1 NAT IN 10 to 10 2 0
45 1 NAT IN 0.95 to 1.05 2 0
46 1 NAT IN 1 to 1 2 0
47 1 NAT IN 1.0 to 1.1 2 0
48 1 NAT IN 1 to 1 2 0
49 1 NAT IN 0 to 0 2 0
50 1 NAT IN 111 to 111 2 0
51 1 NAT IN 4.9 to 5.1 2 0
52 1 NAT IN 99 to 99 2 0
53 1 NAT IN 2.45 to 2.55 2 0
54 1 NAT IN 120 to 120 2 0
55 1 NAT IN 1.30 to 1.35 2 0
Document Details
| Board / Org | IIT |
| Exam | Graduate Aptitude Test in Engineering |
| Type | Answer Key |
| Pages | 3 |
| Language | english |
| Updated | 30 Apr 2026 |