The mechanical model of communication is characterised by which of the following?

The mechanical or transmission model of communication moves a message along a fixed technical line without any built-in return.

Statement 2, one-way flow, fits because the message travels from the source to the receiver without the receiver replying in the same act.

Statement 3, from one to many, fits because a single source addresses a large scattered set of receivers at once.

Statement 4, anonymity, fits because sender and receivers do not personally know one another in this impersonal channel.

Multiple-way flow marks the transactional model where every party sends and receives together, not this scheme.

An active audience that shapes meaning belongs to interactive and reception models, not to this passive mechanical picture.

This picture is rooted in the Shannon and Weaver engineering line of communication.