Question 138Motor Plants - QMED

The correct answer is B) Leaking aftercooler. The presence of water in the scavenging air receiver indicates a leaking aftercooler. The aftercooler is responsible for cooling the scavenging air after it has been compressed by the blower, and a leak in the aftercooler can allow water to enter the scavenging air system. The other answer choices are not directly related to the presence of water in the scavenging air receiver. Leaking cylinder head gaskets, excessively high scavenge air temperature, and auxiliary blower failure can all cause other issues, but they are not the primary causes of water in the scavenging air receiver.