Minnesota Special Engineer Boiler License Exam Study Guide 2024, Exams of Business Economics

Download Minnesota Special Engineer Boiler License Exam Study Guide 2024 and more Exams Business Economics in PDF only on Docsity! MINNESOTA SPECIAL ENGINEER BOILER LICENSE EXAM 2024 For the purpose of rating boiler horsepower for an Engineers License only, how many square feet of boiler surface shall be equivalent to one boiler horsepower on a boiler? - correct answer✔✔ 10 Sq. Ft. Heating Surface What is meant by the term "Low Pressure Boiler"? - correct answer✔✔ Boilers operating at a steam or other vapor pressure of 15psig or less, or a hot water or other liquid boiler in which the pressure does not exceed 160 psig or a temperature of 250 degrees F. A person holding a current State of Minnesota Special Engineers License could be in charge of, or a shift engineer in what size plant(s)? - correct answer✔✔ High and Low pressure boilers not to exceed a total of 50 boiler horsepower, or a shift engineer in a 100 horsepower plant. Special Engineer may serve as an apprentice of what size water/liquid or steam/vapor boiler? - correct answer✔✔ In any plant regardless of size under the direct supervision of a properly licensed engineer. The purpose of low water cut out on a steam or hot water boiler is to what? - correct answer✔✔ Shut off the burner when a low water condition exists. The valve or valves that must relieve all excess pressure on a steam or hot water boiler are what? - correct answer✔✔ Safety valve and/or an ASME approved safety relief valve. A Tri indicator could be found on a: - correct answer✔✔ Hot water boiler A tri indicator would inform the boiler operator of what? - correct answer✔✔ The TEMPERATURE of the water, the PRESSURE of the water in PSIG, and the ALTITUDE of water in feet. What is the destructive force in a steam or hot water boiler explosion? - correct answer✔✔ The instant release of energy stored in the water as heat. An ASME approved safety relieve calve used on a hot water boiler is tested at the factory on what? - correct answer✔✔ Steam first then hot water. Some of the things you could find on a steam boiler (or hot water boiler) are what? - correct answer✔✔ Low water cut off, safety valve or safety relief valve, pressure gauge. What devices would only be found on a steam boiler? - correct answer✔✔ Steam pressure gauge, tricocks, Pressuretrols An expansion tank or compression tank would be used in what? - correct answer✔✔ Hot water boiler What is the purpose of the expansion tank? - correct answer✔✔ To provide for expansion and contraction of the water volume as its temperature varies. On a hot water boiler, what is the purpose of the vent valve? - correct answer✔✔ To make sure there is water inside the boiler and to vent any trapped air. If the safety valve or ASME safety relief valve leaks you would do what? - correct answer✔✔ Have the valve repaired or replaced. Tri cocks or gauge cocks are sued on a steam boiler to indicate? - correct answer✔✔ The true water level inside the boiler. On a steam or hot water boiler, the safety valve or safety relief valve could be tested by? - correct answer✔✔ When the boiler is running lifting the lever on the valve or raising the pressure until they operate. Before starting a steam or hot water boiler you should check for what? - correct answer✔✔ Water in the boiler. True or False: Bottom blow down valves are used for both steam and hot water. - correct answer✔✔ True What type of boiler has the water surrounding the tubes? - correct answer✔✔ Fire tube What type of boiler has the water running through the tubes? - correct answer✔✔ Water tube Boiler room log books area state of Minnesota requirement for ever boiler room, what are some of the things you should be writing down in the book? - correct answer✔✔ The log entry should start out with today's date NEXT what you did you do in the boiler room NEXT sign your name What is condensate? - correct answer✔✔ Condensed steam A firing cycle consists of events that safely controls the burning of a fuel. What even occur first? - correct answer✔✔ Safety controls must be in the circuit. After blowing down the water column and gauge glass you are looking for the: - correct answer✔✔ Water reentering the gauge glass to rise promptly. Give an example of cold water start for a hot water boiler. - correct answer✔✔ XXX Two low water fuel cut-outs are required when the BTU input of the burner exceeds: - correct answer✔✔ 750,000 A boiler equipped with the two low water fuel cut-outs must have _______________ on the secondary low water fuel cut-out. - correct answer✔✔ A manual reset. A boiler with a new burner OR a new boiler room must have: - correct answer✔✔ A kill switch by each door leaving the boiler room. The low water fuel cut off should be tested: - correct answer✔✔ At least once a day when the boiler is in operation. What is the purpose of a check valve used in a feed water line going to a steam boiler? - correct answer✔✔ To restrict the flow in one direction only. Where would you expect to locate pyrometer? - correct answer✔✔ In the exhaust gases leaving the boiler What would the pyrometer tell you? - correct answer✔✔ The temperature An aqua state would be used on what type of boiler? - correct answer✔✔ A hot water boiler Globe valves are used when you need to: - correct answer✔✔ Throttle or restrict the flow Three types of drafts are: - correct answer✔✔ Natural, forced, and induced.