What is a disadvantage of a turbocharger?

• A. Low exhaust temperature
• B. Reduced power
• C. High internal temp
• D. Simple design

Answer: (C)

Turbochargers use exhaust energy to push more air into the engine, which boosts power but also increases heat in the system. Compressing the intake air raises its temperature, which reduces air density and can raise the risk of knocking if fuel and timing aren’t adjusted. Even with an intercooler, the engine must manage more heat, so the overall internal temperatures run higher and cooling systems must work harder. That added heat and thermal stress are the main drawbacks of a turbocharger.

Lower exhaust temperature isn’t typical of turbocharged operation, and turbocharging instead increases power, not reduces it. Plus, a turbo system adds complexity rather than keeping things simple, so the other options don’t describe the common disadvantage.