When will a TCP network packet be fragmented at the application layer?

Question

When will a TCP packet be fragmented at the application layer? When a TCP packet is sent from an application, will the recipient at the application layer ever receive the p

Answer 1

If a packet exceeds the maximum MTU of a network device it will be broken up into multiple packets. (Note most equipment is set to 1500 bytes, but this is not a necessity.)

The reconstruction of the packet should be entirely transparent to the applications.