What are the methods of i.c. engine cooling?

Internal combustion (I.C.) engine cooling methods primarily include liquid cooling, air cooling, and oil cooling. Liquid cooling involves circulating a coolant, typically a mixture of water and antifreeze, through the engine to absorb heat, while air cooling uses fins and airflow to dissipate heat directly from the engine surfaces. Oil cooling utilizes engine oil to absorb and transfer heat away from critical components. Each method has its advantages and is chosen based on engine design and operating conditions.