What total number of degrees Fahrenheit per pound of coolant does a radiator pressure cap raise the boiling point of the coolant?

The correct answer indicates that a radiator pressure cap raises the boiling point of the coolant by 6 degrees Fahrenheit for each pound of pressure allowed by the cap. This principle is based on the fact that increasing the pressure within the cooling system raises the boiling point of the coolant, which helps prevent it from evaporating when the engine operates at higher temperatures.

Understanding this concept is essential for maintaining proper engine temperatures and preventing overheating. When pressure builds up in the cooling system, it effectively requires the coolant to reach a higher temperature before it turns to steam. Consequently, the pressure cap plays a crucial role in enhancing the overall efficiency of the cooling system by prolonging the effective boiling point of the coolant. Thus, recognizing that 6 degrees Fahrenheit is the standard increase per pound is important for those who operate machinery and need to ensure their cooling systems are functioning optimally.