Safe Boiler Operation Fundamentals—Special Engineer's Guide for the State of Minnesota

first law of thermodynamics CORRECT ANSWER Energy cannot be created or destroyed second law of thermodynamics CORRECT ANSWER Heat flows from a higher temperature material to a lower temperature material How does the boiling point of water change with steam pressure? CORRECT ANSWER The boiling point of water increases as steam pressure increases latent heat CORRECT ANSWER Heat that causes a state change but doesn't change the temperature sensible heat CORRECT ANSWER Heat that causes a temperature change without a state change Conduction CORRECT ANSWER The direct transfer of heat from one substance to another substance that it is touching. Convection CORRECT ANSWER The transfer of heat by the movement of a fluid Radiation CORRECT ANSWER Energy that is radiated or transmitted in the form of rays or waves or particles. Produced upon contact with opaque objects What are examples of conduction, convection, and radiation in a boiler? CORRECT ANSWER Heat radiates from combustion flames to the metal surfaces of the boiler, the metal surfaces conduct heat from the hot side to the cooler side where metal is covered by water or steam. Heat moves within the steam/hot water via convection.