As you asking for the Answer key of the ISRO Scientific Recruitment Mechanical Engineering the Answer key is given below

Q.No. Answer
1 a
2 c
3 c
4 d
5 c
6 a
7 d
8 b
9 b
10 c
11 b
12 a
13 c
14 d
15 d
16 b
17 a
18
d
19 b
20 d
21 b
22 a
23 b
24 d
25 a
26 b
27 a
28 c
29 b
30 d
31 c
32 b
33 a
34 a
35 d
36 d
37 c
38 b
39 d
40 c
41 c
42 b
43 d
44 a
45 d
46 c
47 a
48 b
49 c
50 a
51 c
52 b
53 a
54 d
55 a
56 c
57 b
58 c
59 b
60 a

ISRO Scientific Recruitment Mechanical Engineering Examination Answer key