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A low pressure steam boiler has an MAWP of ____ psi
15
The higher the steam pressure, the higher the _____ of the water in the boiler
Boiling point
____ is the amount of energy equal to the evaporation of 34.5 lb of water/hr from and at a feedwater temperature of 212 degrees Fahrenheit
Boiler horsepower
When a steam boiler is operating at 100 pounds per square inch gauge pressure (psig), the temperature of the water and steam will be approximately ____ degrees Fahrenheit
338
A horizontal return tubular (HRT) boiler is a _____ boiler
Firetube
As steam pressure in a boiler increases, there is a corresponding increase in the ____
Temperature
A sudden drop in pressure from 100 psig to 0 psig without a corresponding drop in temperature could result in a(n) ____
Explosion
Water will boil and turn to steam when it reaches ____ degrees Fahrenheit at atmospheric pressure at sea level
212
_____ is the ratio of the heat absorbed by the boiler (output) to the heat available in the fuel (input)
Thermal efficiency
Baffles are used to direct gases so that they come in close contact with the ____
Boiler heating surface
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