MINNESOTA SPECIAL ENGINEER BOILER LICENSE QUESTIONS WITH GUARANTEED ACCURATE ANSWERS, Exams of Nursing

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MINNESOTA SPECIAL ENGINEER BOILER LICENSE QUESTIONS MINNESOTA SPECIAL ENGINEER BOILER LICENSE QUESTIONS WITH GUARANTEED ACCURATE ANSWERS 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? - ACCURATE ANSWERS✔✔ 10 Sq. Ft. Heating Surface. What is meant by the term "Low Pressure Boiler"? - ACCURATE ANSWERS✔✔ 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)? - ACCURATE ANSWERS✔✔ 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? - ACCURATE ANSWERS✔✔ 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? - ACCURATE ANSWERS✔✔ 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? - ACCURATE ANSWERS✔✔ Safety valve and/or an ASME approved safety relief valve. A Tri indicator could be found on a: - ACCURATE ANSWERS✔✔ Hot water boiler A tri indicator would inform the boiler operator of what? - ACCURATE ANSWERS✔✔ 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? - ACCURATE ANSWERS✔✔ 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? - ACCURATE ANSWERS✔✔ Steam first then hot water.

Some of the things you could find on a steam boiler (or hot water boiler) are what? - ACCURATE ANSWERS✔✔ Low water cut off, safety valve or safety relief valve, pressure gauge. What devices would only be found on a steam boiler? - ACCURATE ANSWERS✔✔ Steam pressure gauge, tricocks, Pressuretrols An expansion tank or compression tank would be used in what? - ACCURATE ANSWERS✔✔ Hot water boiler What is the purpose of the expansion tank? - ACCURATE ANSWERS✔✔ 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? - ACCURATE ANSWERS✔✔ 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? - ACCURATE ANSWERS✔✔ Have the valve repaired or replaced. Tri cocks or gauge cocks are sued on a steam boiler to indicate? - ACCURATE ANSWERS✔✔ 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? - ACCURATE ANSWERS✔✔ 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? - ACCURATE ANSWERS✔✔ Water in the boiler. True or False: Bottom blow down valves are used for both steam and hot water. - ACCURATE ANSWERS✔✔ True Safety valves or safety relief valves should be manually tested at least...?

• ACCURATE ANSWERS✔✔ Monthly The low water cut out is one of the most important electrical/mechanical devices on your boiler. How often should you test it? - ACCURATE ANSWERS✔✔ Daily What device must be located between a hot water boiler and the expansion tank? - ACCURATE ANSWERS✔✔ A shut off valve so the expansion can be isolated and drained during operation of the boiler. On a hot water boiler, every time the burner operates the safety relief valve opens. Why? - ACCURATE ANSWERS✔✔ The expansion tank is water logged, or the isolating valve for the expansion tank is closed.

An Aquastat is used on a...? - ACCURATE ANSWERS✔✔ Hot water boiler To reduce thermal shock on hot water boilers, what devices are used? - ACCURATE ANSWERS✔✔ Low limit or low fire hold control, three way valve, run around pump. On a steam boiler the control named operator will... - ACCURATE ANSWERS✔✔ On pressure decrease: Start. On pressure increase: Stop. On a hot water boiler the control called the operator will... - ACCURATE ANSWERS✔✔ On temperature decrease: Start. On temperature increase: Stop. On a steam boiler what is a siphon or pigtail used for? - ACCURATE ANSWERS✔✔ To protect the steam gauge from too high of temperature. What is one reason causing the expansion tank to fill with water? - ACCURATE ANSWERS✔✔ Air leaks from the gauge glass fitting. What would you do if you cam into a boiler room and found no water in the boiler? - ACCURATE ANSWERS✔✔ Shut off the burner and allow boiler to cool.

What is the purpose of the bottom blow down on a steam boiler? - ACCURATE ANSWERS✔✔ To remove sludge and sediment and to drain the boiler. When blowing down the water column the water should do what? - ACCURATE ANSWERS✔✔ Refill the gauge glass quickly. When doing the annual boiler inspection the boiler should... - ACCURATE ANSWERS✔✔ Water and fire side cleaned and inspection ports open. Purging is part of what cycle? - ACCURATE ANSWERS✔✔ Firing cycle All steam traps will prevent steam from passing through them but will allow what to pass through them? - ACCURATE ANSWERS✔✔ Dirt, air, and condensate. How do we know if we are using and approved safety valve for a steam boiler or a safety relief valve for a hot water boiler? - ACCURATE ANSWERS✔✔ A spring loaded direct acting safety valve or safety relief valve. Before testing a low water fuel cut-out what must be done? - ACCURATE ANSWERS✔✔ The burner must be on.

Heat can be transferred in how many ways? - ACCURATE ANSWERS✔✔ Three. Aqua stats work by sensing: - ACCURATE ANSWERS✔✔ Temperature. Name the different ways heat can be transferred and give a definition of each way. - ACCURATE ANSWERS✔✔ Radiation, Conduction, Convection How many types of boilers are there? - ACCURATE ANSWERS✔✔ Three: Fire tube, Water tube, Cast iron sectional What type of boiler can be made larger? - ACCURATE ANSWERS✔✔ Cast Iron sectional What type of boiler has the water surrounding the tubes? - ACCURATE ANSWERS✔✔ Fire tube What type of boiler has the water running through the tubes? - ACCURATE ANSWERS✔✔ 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? - ACCURATE ANSWERS✔✔ 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? - ACCURATE ANSWERS✔✔ Condensed steam A firing cycle consists of events that safely controls the burning of a fuel. What even occur first? - ACCURATE ANSWERS✔✔ Safety controls must be in the circuit. After blowing down the water column and gauge glass you are looking for the: - ACCURATE ANSWERS✔✔ Water reentering the gauge glass to rise promptly. Give an example of cold water start for a hot water boiler. - ACCURATE ANSWERS✔✔ XXX Two low water fuel cut-outs are required when the BTU input of the burner exceeds: - ACCURATE ANSWERS✔✔ 750, A boiler equipped with the two low water fuel cut-outs must have _______________ on the secondary low water fuel cut-out. - ACCURATE ANSWERS✔✔ A manual reset. A boiler with a new burner OR a new boiler room must have: - ACCURATE ANSWERS✔✔ A kill switch by each door leaving the boiler room.

The low water fuel cut off should be tested: - ACCURATE ANSWERS✔✔ 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? - ACCURATE ANSWERS✔✔ To restrict the flow in one direction only. Where would you expect to locate pyrometer? - ACCURATE ANSWERS✔✔ In the exhaust gases leaving the boiler What would the pyrometer tell you? - ACCURATE ANSWERS✔✔ The temperature An aqua state would be used on what type of boiler? - ACCURATE ANSWERS✔✔ A hot water boiler. Globe valves are used when you need to: - ACCURATE ANSWERS✔✔ Throttle or restrict the flow. Three types of drafts are: - ACCURATE ANSWERS✔✔ Natural, forced, and induced.