High Pressure Boilers Chapter 2 Post Test And Verified Answers 2023.

Condensate - Answer Steam that has lost its heat and has turned back into water. Deaerator is located above the feedwater pumps so that: - Answer the water is supplied to the pumps at a positive pressure. Safety Valves - Answer protect the boiler if the pressure control fails. Economizer - Answer where feedwater is pumped through and heated by the gases of combustion. Modern coal plants use: - Answer Pulverized Coal that is blown into the combustion chamber where it burns in suspension. Draft - Answer the flow of air or gases of combustion caused by a difference in temperatures between two points. Natural Draft - Answer produced when a draft fan is located between a boiler and the chimney. A control loop - Answer contains a primary element, a control element, and a final element. Once fuel oil reaches the burner, it is the function of the burner to: - Answer atomize the oil so it can mix with air and burn. Transmitter - Answer used on many instruments to send a signal to a controller. Control System - Answer A system of measuring instruments and controllers that work together to control a process.