Theres no such thing as a 16 amp socket. It sounds very iffy.
Yes there are
6 amp for lighting, Normally in a domestic installation
13amp for the ring main sockets Never seen one, but normally in a domestic installation the circuit would be protected by a 30/32 amp circuit protective device. Ultimately depends on system design,
20 amp for bigger machines or water heater, individual fuse /mcb/rcd/ elcb, whatever you want to call it and wiring for each machine. 32 amp for seriously big stuff. Umm ???? what I think you mean are termed as a Radial Circuit and completely depend on the load applied to the circuit and its design
Can you post a pic?
usually, machines larger than the rated circuit will start and run ok. Startup voltage and amperage peak is tiny fractions of a second, and a normal mcb will not trip. But if the motor has any friction, or its subjected to a heavy load, then you will get nuisance tripping. But, heres the risk... the large machine may well run ok, but the wiring will heat up. the longer the machine runs, the more it will heat, and eventually melt or catch fire, and the fuse WILL NOT blow. you must size the wire and the mcb to the machines power demand.
If you are concerned, just hold your hand against the wiring or the plug. If its hot to the touch, its DANGEROUS.