RCM charged on freight

Satpal kumar (29 Points)

16 August 2017  
1) is that RCM applicable when a six wheels truck driver working as driver of registered person under gst and he supply goods by road through driver and recipient of goods also registered person under gst. In that case RCM applicable on freight or not clarify me?
2)what are the vehicles cover GTA under gst regime for calculated RCM under gst.
3)RCM how to calcuted means how many % percent.
4)Tractor or trolly used for transporting goods cover under GTA or not ?