🔍 Key Concepts

• Follow the air path from the air inlet through the compressor/blower and into the engine • Understand where an after cooler would be located in relation to the blower and cylinders • Recognize how an exhaust gas turbine is always placed in the exhaust flow, not on the intake side

💭 Think About

• Look at where label L is located: is it in the fresh air/intake side, in the exhaust gas path, or between stages of compression? • Compare the shapes and locations of the rotating unit, the air passages, and the component marked L—what function would a unit in that exact spot most likely serve? • Ask yourself: does the part at L appear to be a rotating machine, a heat‑exchange surface, or a simple housing/filter in the airflow?

✅ Before You Answer

• Verify whether exhaust gases ever pass through point L or only clean intake air • Check if L is drawn immediately upstream of the scavenge/air receiver or at the very entrance to the system • Confirm whether L is shown as a rotating assembly (shaft/impeller) or as a static casing or bundle, which would rule out some answer choices