Heavy Duty Equipment Technician Red Seal Exam Prep · Question
A turbocharger is designed to increase engine power by forcing more air into the cylinders. During normal operation, what component directly drives the compressor wheel?
In a standard turbocharger, the hot exhaust gases expelled from the engine are directed through the turbine wheel, spinning it at high speeds, which in turn is
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Question: A turbocharger is designed to increase engine power by forcing more air into the cylinders. During normal operation, what component directly drives the compressor wheel?
Answer options:
- The engine crankshaft via a belt drive.
- An electric motor controlled by the engine ECM. ✅ Exhaust gases flowing through the turbine.
- Pressurized engine oil acting on an internal piston.
Correct answer: Exhaust gases flowing through the turbine.
Explanation: In a standard turbocharger, the hot exhaust gases expelled from the engine are directed through the turbine wheel, spinning it at high speeds, which in turn is mechanically linked by a shared shaft to drive the compressor wheel.
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