Boiler operator/ stationary steam engineer exam Correct 100%

what is used to keep SO2 down? - ANSWERwet and dry scrubbers a wet scrubber that has been maintained properly has the capability of absorbing ______% of the SO2 in the flue gas - ANSWER90% Materials of construction of a flue gas scrubber system must be selected to resist what hostile conditions? - ANSWERlow pH conditions and abrasion the efficiency of a spray pond or cooling tower is based on? - ANSWERwet bulb temperature or relative humidity of the ambient air when placing an induced draft cooling tower into service, which is the last step performed? - ANSWERstart the i.d. fans when operating an induced draft cooling tower, which of the following statements is FALSE - ANSWERit is more economical to operate one fan at high speed than two fans at low speed what condition could be prevented by keeping the pH of water greater than 7? - ANSWERcorrosion which chemical is often used to control algae accumulation in cooling towers? - ANSWERcopper sulfate (LP) what is the minimum percentage of oxygen that must be present in a confined space before entering? - ANSWER19.5% (LP) which of the following should you not tag and lock out when a boiler is shut down for inspection? - ANSWERtop tri cock or boiler vent what is the first thing that must be done when starting up a brand new boiler? - ANSWERboil the boiler out which of the following is not done during a boiler start up? - ANSWERfill the boiler to the NOWL when starting a fire in a coal_fired boiler with chain grates or traveling grates, how much coal should be on the grates? - ANSWER3-4 inches when should a non-return valve be opened when putting a boiler on line? - ANSWERwhen the boiler pressure builds to 10 to 25 pose below the header pressure if a steam oiler is beinBoiler operator/ stationary steam engineer exam Correct 100%