In carburetor heat, the heat exchanger is located around the ______ manifold.

• A. Exhaust Manifold
• B. Intake Manifold
• C. Fuel Line
• D. Cooling Jacket

Answer: (A)

Carburetor heat works by using heat from the engine to warm the air entering the carburetor, preventing icing. The heat exchanger is wrapped around the exhaust manifold so that hot exhaust air conducts its heat into the incoming air before it reaches the carburetor. This heated air reduces the chance of ice forming in the carburetor venturi and throttle area. The other options don’t fit because the intake manifold doesn’t supply the high exhaust-derived heat needed; heating the fuel line would risk vaporization and fuel system issues; and the cooling jacket is part of engine cooling, not the carburetor heating path.