Minnesota Special Engineer Boiler License Practice Exam 2026 - Free Boiler License Practice Questions and Study Guide

Water boils at 212°F (100°C) at sea level due to the atmospheric pressure exerted by the air above it. This boiling point is governed by the physical properties of water and is a key concept in thermodynamics. When the temperature of water reaches 212°F, the vapor pressure of the water equals the atmospheric pressure. This is when water molecules have enough energy to transition from the liquid phase to the gas phase, resulting in boiling.

Understanding this boiling point is crucial for various applications, especially in boiler operations, as it determines the efficiency and safety of steam generation processes. The boiling point can vary with changes in altitude and atmospheric pressure; however, at sea level, it is universally accepted that water boils at this temperature. This fundamental knowledge is essential for anyone preparing for a boiler license, as it impacts the operation and maintenance of boiler systems effectively.