Ohio stationary steam engineer Exam Questions And Answers 100% Solved
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Ohio stationary steam engineer
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Ohio Stationary Steam Engineer
Ohio stationary steam engineer Exam
Questions And Answers 100% Solved
Combustion efficiency may be increased by_____ the primary air - answerPreheating
What is the purpose of cinder reinjection? - answerincrease efficiency
2 forces of equal intensity acting in opposite directions is? - answerte...
Ohio stationary steam engineer Exam Questions And Answers 100% Solved Combustion efficiency may be increased by_____ the primary air - answer✔✔Preheating What is the purpose of cinder reinjection? - answer✔✔increase efficiency 2 forces of equal inte nsity acting in opposite directions is? - answer✔✔tension What is true about the dew poimt of flue gasses - answer✔✔dew point is the temp at which the gasses will condense What will not cause high stack temps? - answer✔✔plugged dry pipe What is true about smoke - answer✔✔smoke consists of unburned hydrocarbons WHat is used to reduce SO2 emissions in coal fired boilers? - 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 t he boiler operator needs to _______ - answer✔✔operate soot blowers What watertube bolier is the largest in size and steam -generating compacitity - answer✔✔Utility watertube boiler the blowdown on a safety valve can be altered by changing the setting of the _____ - answer✔✔huddling ring Copper and brass piping may be used for piping systems as long as the temp does not exceed - answer✔✔406 degrees What is not measured in a 3 element feedwater system -feedwater flow -drum pressure -steam flow -drum level - answer✔✔drum pressure If the flame in a gas -fired bolier is pulsating how can the problem be fixed? - answer✔✔increase furnace draft Grindability of coal is an issue to be considered when operating which kid of coal -burining equipment? - answer✔✔ball-and-race pulvarizer When using an induced draft fan, where will the strongest negative draft be found - answer✔✔at the inlet of the ID fan How do you bank a fuel oil -fired boiler? - answer✔✔turn off the fuel and air supplies, the re -
light the burner as necessary to maintain a predetermined minimum steam pressure What is true about the lube oil used in a steam turbine - answer✔✔it must readily seperate oil and water What supplies the oil to a large steam turbine during start -up - answer✔✔aux oil pump What device pr events the over -travel of the governor linkage that might be caused by the weight of the governor components - answer✔✔Dashpot When taking a boiler out of service what should you not do - answer✔✔close the vent what type of turbine oil purification system periodically removes a potion of the oil and replaces it with fresh oil? - answer✔✔makeup oil system what type of steam turbine system has steam take -offs prior to going into the condenser? - answer✔✔extraction turbine What is the pressure above which the exhaust side of a steam turbine and the connected piping may be protected by either a safety valve or a rupture disc, or a combination of the 2 - answer✔✔15 psi What grade fuel oil may be ignited by an electric spark fr om electrodes powered by an ignition transformer? - answer✔✔#2 what is the cheapest, easiest form of water treatment? - answer✔✔heating the water A turbine exhausts steam @ 15 psi. This steam is used in a low -pressure application such as a deareator. this type of turbine is called a: - answer✔✔back -pressure turbine At what temp should you add cooling water to a turbines bearings? - answer✔✔110-120 degrees What is produced from the reaction between sodium sulfite and oxygen? - answer✔✔sodium sulfate What is the purpose of an attemperator - answer✔✔reduce temp of superheated steam by adding a water mist What are the 2 main methods by which steam is prevented from leaking out around the turbine shaft where the shaft exits the casing? - answer✔✔labyrinth seals a nd carbon rings If the water in a boiler is foaming, the water level indication in the gauge glass will be: - answer✔✔erratic Cast iron or ductile iron pipe is used for: - answer✔✔underground water supply and drainage What is the maximum allowable level of dissolved solids in the steam being supplied to a steam turbine? - answer✔✔.1 ppm If a boiler requires a second safety valve, the highest pressure setting on the additional valve should not exceed the MAWP by more than - answer✔✔3% Steam is tapped off a t urbine casing at several pressures for aux. uses in the production plant. the steam is called: - answer✔✔extraction steam If the tubes in a boiler are flared during installation, which of the following is true? -The ID is increased -The OD is decreased -The length is decreased -the wall thickness is increased - answer✔✔The ID is increased What problem is caused by dirty condenser tubes? - answer✔✔inability to maintain a normal vacuum on condenser A lubrication with low viscosity is usually: - answer✔✔adapte d to high RPM use On a bicolor gauge glass water will appear ____ and steam will appear _____ - answer✔✔green, red Name 2 common classes of steam turbine blading: - answer✔✔impulsive and reactive Which of the following is NOT an advantage of operating a st eam turbine condensing? -the condensate from the steam in recovered -the HP developed by the turbine is increased -The speed of the turbine is decreased -Recovery of hot condensate increases boiler efficiency - answer✔✔The speed of the turbine is decreased A boiler is industrial when: - answer✔✔The steam is used for a manufacturing process What is the function of the dashpot? - answer✔✔prevent over -travel due to the weight of the governor linkage
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