Question

under which category is production of automobile and heavy machinery placed​

Answer 1

Answer:

in large scale industry

Explanation:

hope this answer helps you

Answer 2

Answer:

The machine industry or machinery industry is a subsector of the industry, that produces and maintains machines for consumers, the industry, and most other companies in the economy.

Explanation:

This machine industry traditionally belongs to the heavy industry. Nowadays, many smaller companies in this branch are considered part of the light industry. Most manufacturers in the machinery industry are called machine factories.