Ohio stationary steam engineer| 288 questions| with complete solutions

Combustion efficiency may be increased by_____ the primary air correct answer: Preheating What is the purpose of cinder reinjection? correct answer: increase efficiency 2 forces of equal intensity acting in opposite directions is? correct answer: tension What is true about the dew poimt of flue gasses correct answer: dew point is the temp at which the gasses will condense What will not cause high stack temps? correct answer: plugged dry pipe What is true about smoke correct answer: smoke consists of unburned hydrocarbons WHat is used to reduce SO2 emissions in coal fired boilers? correct answer: Wet or dry scrubbers In a solid fuel fired boiler, a gradual increase in flue gas exit temps over a course of a shift inidicates the boiler operator needs to _______ correct answer: operate soot blowers What watertube bolier is the largest in size and steam-generating compacitity correct answer: Utility watertube boiler the blowdown on a safety valve can be altered by changing the setting of the _____ correct answer: huddling ring Copper and brass piping may be used for piping systems as long as the temp does not exceed correct answer: 406 degrees What is not measured in a 3 element feedwater syst