Boiler Operator State Test

A low pressure steam boiler has a maximum allowable working pressure (MAWP) of up to - Answer- 15 psi The evaporation of 34.5 lb of water/hr from and at a feedwater temperature of 212 degrees F is defined as - Answer- one boiler horsepower In a firetube boiler, the heat and gases of combustion pass - Answer- through the tubes A firetube boiler may be used - Answer- in high or low pressure plants Because of the large volume of water, the boiler most likely to cause a boiler explosion is - Answer- a firetube boiler A horizontal return tubular (HRT) boiler is _____________ boiler - Answer- a firetube As steam pressure in a boiler increases, there is a corresponding increase in the - Answer- temperature A sudden drop in boiler steam pressure without a corresponding drop in boiler water temperature could result in - Answer- a boiler explosion The part of a boiler that has the heat and gases of combustion on one side & water on the other side is known as the - Answer- heating surface