technician a says that a ratio is a comparision between two valves. Technician b says that in a compressed ratio, the main values are the cylinder volumes at the two different piston positions, BDC and TDC. who is right?
Technician A is correct. It is true that there is a ratio of comparison between the two valves. Technician B is incorrect because it is only compressed in TDC. That is the reason that makes his statement wrong and making technician A right.
