Final answer:
Convection is the process by which heat is carried from the cooling fins of a cylinder to the surrounding air.
Step-by-step explanation:
Heat is carried from the cooling fins of a cylinder to the surrounding air by a process called convection. Convection is the process by which heat is carried from the cooling fins of a cylinder to the surrounding air. Convection is the transfer of thermal energy by the large-scale flow of matter.
In the case of cooling fins, the flow of air past the fins carries away the heat, similar to how a fan cools you by replacing the hot air with cooler air. Another example is the cooling system of a car, where a pump moves coolant through the radiator and a fan blows air to cool the radiator.