Noun                  Adjective

1.Architecture-    Architectural 
2.chemistry-        chemist
3.electricity -       electrical
4.mathematics-    mathematical
5.mechanics-        mechanical
6.nation-               national
7.physics-             physical
8.practice-            practical
9.organizational-  organizability
10.extrusoin-        extrusive

1.civil engineer   -

2.hardware engineer-

3.electronics   engineer -

4.software engineer-

5.building engineer -

6.IT engineer  -

7. information technology engineer  -

8.radio communications -

9.mining engineer -

10.network engineer -   

11.physics  engineer -

12. chemical engineering -

a chemical compound

a chemical experiment

13.architectural engineer -
14. aerospace engineer -

15. auto  engineer -

16.electronic communications -

17.geophysics engineer -