Question

With respect to internal combustion engines, a method of cooling an engine using fluid that rejects heat by contacting the atmosphere or an open reservoir is known as:

Select one:
a. closed cooling
b. open cooling
c. contact cooling
d. surface cooling

Answer 1

In internal combustion engines, a method of cooling known as open cooling involves using fluid to reject heat by making contact with the atmosphere or an open reservoir.

Step-by-step explanation:

With respect to internal combustion engines, a method of cooling an engine using fluid that rejects heat by contacting the atmosphere or an open reservoir is known as open cooling. This cooling process allows the excess heat from the engine's operations to be dissipated directly into the surrounding environment, which contrasts with closed cooling systems where the heat is transferred away through a closed loop containing coolant.

Heat engines, such as gasoline and diesel engines, jet engines, and steam turbines, utilise heat transfer from a hot reservoir to do work, releasing waste heat into a cold reservoir, often the atmosphere, which, in the case of open cooling, acts to cool the engine. As an important principle of thermodynamics, it is impossible for any process to have as its sole result heat transfer from a cooler to a hotter object, underscoring the necessity of effective cooling systems in heat engine design.