Question 253Motor Plants - Assistant Engineer

The correct answer is A. The combustion chamber labeled as "A" in the illustration MO-0068 is referred to as an "energy cell" used in some small diesel engines. This term is commonly used to describe the compact, high-efficiency combustion chamber design found in certain lightweight and high-speed diesel engines, particularly those used in marine and off-highway applications. The other options (B, C, and D) represent different combustion chamber designs that are not specifically referred to as "energy cells" in the context of small diesel engines.