Boiler Operation Study Guide

ABSOLUTE PRESSURE - Answer- ___The sum of gauge pressure and atmospheric pressure ACCESSORY - Answer- ___Piece of equipment not directly attached to the boiler but necessary for its operation ACCUMULATION TEST - Answer- ___Test used to establish the relieving capacity of boiler safety valves. AIR EJECTOR - Answer- ___Steam-driven device that removes air and other noncondensable gases from the condenser, thus maintaining a higher vacuum. AIR FLOW SWITCH - Answer- ___Proves that primary air is supplied to the burner. AIR TO FUEL RATIO - Answer- ___Amount of air and fuel supplied to the burner over high and low fire. AIR HEATER - Answer- ___Supplies heated air for combustion. Located in the breeching between the boiler and chimney. AMBIENT TEMPERATURE - Answer- ___Temperature of the surrounding air ALKALINITY - Answer- ___Determined by boiler water analysis. Boiler water with a PH over 7 is considered alkaline ANTHRACITE COAL - Answer- ___Hard coal that has a high fixed carbon content. ASH HOPPER - Answer- ___Large receptacle used to store ashes until they can be disposed of. ASME CODE - Answer- ___Code written by the American Society of Mechanical Engineers that controls the construction, repairs and operation of steam boilers and their related equipment