Q1#1. Water in the fuel tanks is:AAdded with FS11 when refuelling.BIs a consequence of atmospheric air entering the tanks through the engine.CIs a consequence of atmospheric air entering the tanks through the vent system.DIs a consequence of atmospheric air entering the tanks through the feeder box.
Q2#2. Water in the fuel tank is removed:AVia a drain valve at the lowest point in the tank.BVia a drain tank at the base of the engine.CVia a scoop at the top of the tank.DEvery major servicing only.