One of the functions of the component labeled "E", shown in the illustration, is to __________. GS-0119

Correct Answer: Option C — act as a lube oil sump

In standard reciprocating air compressor diagrams, component 'E' typically represents the crankcase or oil reservoir. Its primary function is to act as a lube oil sump, providing a reservoir for the lubricating oil that supplies the bearings, connecting rods, and cylinder walls during the compressor's operational cycle.