Studyclass

boiler exam study guide 2 The bottom blowdown on a boiler ___. - correct answer removes sludge and sediment from the mud drum Boiler tubes are sized using the ___. - correct answer outside diameter A boiler fusible plug is brass or bronze with a core of ___. - correct answer tin Spalling in a boiler refers to ___. - correct answer hairline cracks in the refractory Boiler horsepower is the evaporation of ___ lb of water/hr from and at a feedwater temperature of 212°F. - correct answ...

Boiler License * Low Pressure A welded repair is allowed on the pressure retaining area of a boiler or pressure vessel - correct answer True An OS&Y valve offers the least resistance to flow - correct answer True What chemical prevents pitting - correct answer Sodium Sulfite A rotary cup burner atomizes fuel - correct answer by means of a spinning cup/high velocity air Retubed or new boilers are cleaned with - correct answer Alkaline Detergent Where does fuel atomize - correct an...

Boiler License When applying the 90% rule to the output of 500 HP, its output would be - correct answer 15525 pph A high pressure boiler can be used in a low pressure situation: - correct answer sometimes It takes BLANK BTUs to raise 5 pounds of water from 200 to 212 degrees F - correct answer 60 Minnesota Operators license are renewed every - correct answer 2 years The circumference of a circle with a radius of 3 inches is - correct answer 18.84 inches For Minnesota Operators li...

Boiler Operation Principles Chp. 1What is a Boiler? - correct answer A Boiler is a closed metal container (pressure vessel) in which water is heated to produce steam or heated water. Define Steam now... - correct answer Steam is the vapor that forms when water is heated to its boiling point; immediately over 212 F degrees, thus requiring heat over 180 Btu When did steam power have the greatest impact? - correct answer During the Industrial Revolution of the 18th Century and early 19th cent...

Boiler Operator Licensing Exam1 or more safety valves - correct answer all steam boilers must have Locked closed - correct answer before anyone enters the boiler drum, the main steam stop valve, bottom blowdown valves, & feedwater valves should be 212 degrees F - correct answer at atmospheric pressure, water begins to boil at approximately Fuel oil, gas, & coal - correct answer fuels most commonly used in boilers Steam pressure gauge - correct answer must be connected to the highest ...

Boiler TestFor each engineers license fill in the blanks, indicating how large of a boiler they can be in charge of: a. Special engineer __ horse power b. 2nd class engineer __ horse power c. 1st class engineer __ horse power d. chief engineer __ horse power - correct answer a. Special engineer 30 horse power b. 2nd class engineer 100 horse power c. 1st class engineer 300 horse power d. Chief engineer unlimited horsepower How often should safety values be tested on a low pressure...

BoilerHow many locations can you use your license? - correct answer One How many square feet heating surface requires an inspection? - correct answer 10 square feet Failure of what device causes a furnace explosion? - correct answer Fan Failure or Purge failure When does purge occur? - correct answer On Start up and Shut down Where do you find registration numbers on a boiler certificate? - correct answer Upper Left-hand corner How often are boiler licenses renewed? - correct answ...

Boilers FinalFor the purpose of rating boiler horsepower for an Engineer's License only, what should be equivalent to one boiler horsepower on a boiler? - correct answer 10 sq. ft. heating surface or 67,000 but input What is the most important valve on the boiler? - correct answer Safety valve What is meant by the term "low pressure boiler?" - correct answer Boilers operating at a steam or other vapor pressure of 15 PSIG or less or a water or other liquid boiler in which the pressure do...

Boiler's License Classifications (Minnesota)Number of Years of Licensed Experience Required for Special License - correct answer None Classes of boilers allowed to be operated for Special License - correct answer All Maximum horsepower (in charge of boilers) for Special License - correct answer 50 Maximum horsepower as a Shift Engineer for Special License - correct answer 100 (as an apprentice in any plant under "direct supervision") Number of questions on Special License Exam - c...

Boilers Special EngineersFor the purpose of rating boiler horsepower for an engineer’s license only, How many square feet of heating 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 15 psig or less or a water or other liquid boiler in which the pressure does not exceed 160 psig of a temperature of 250F A person...

Boilers test prep 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 Square feet Heating surface What is meant by the term Low pressure Boiler? - correct answer Boilers operating at a steam or other vapor pressure of 15 PSIG or less, or hot water or other liquid boiler in which the pressure does not exceed 160 PSIG or a temperature of 250 degrees f A ...

Boilers TestBoiler Water Level - correct answer the first duty when taking over a boiler room shift is to make certain the pipe, fittings and valves between the water glass and the boiler are free and open by boiling down the water column and water glass and noting the promptness of the return of water to the glass. The Most Important Rule - correct answer the most important rule for the safe operations of boilers is to maintain the proper water level at all times and as constant level as con...

Codes Final NerdsA power plant is defined as one or more boilers generating steam at pressures in excess of - correct answer 103 kPa The vessel with the number ________ is registered in saskatchewan - correct answer CRN 123.31 To prevent water-hammer, _________ are installed at low points - correct answer steam traps Section VII "Rules for Care of Power Boilers" of the ASME code book are: - correct answer Suggest rules to promote safety in boiler operations In order to convey fluid...

First Class Fireman’s What can you do with your first class fireman's license ? - correct answer Have charge of and or operate any boilers or boiler where the safety valve or valves are set to blow at a pressure not exceeding 25 pounds per square inch or to operate high pressure boilers under then engineer or fireman in direct charge there of. How much does a gallon of water weigh ? - correct answer 8.33 lbs Can a 1st class fireman operate a steam driven feed pump with a 3 inch supply ...

First Class Steam License if the boiler is generating 20,000 lb/hr of steam, it must be supplied with ________ lb/hr of feedwater - correct answer 20,000 from the deaerator, oxygen and other noncondensable gases are separated from the feedwater and directed to the atmosphere _________ - correct answer through the vent a(n) ___________ system is a system of measuring instruments and controllers that work together to control a process - correct answer controll one pound of water is neede...

Gas fitter 2 practice test A room heater installed in either a sleeping area or public area shall be: A. direct vent only B. equipped with a regulator C. equipped with a fan D. equipped with an on / off switch on the wall - correct answer B What type of vent must be used when the vent of a wall furnace will be concealed in a partition wall? A. B vent B. L vent C. BH vent D. BW vent - correct answer D Single wall vent connectors: A. may pass through floors, ceilings or roofs provi...

High Pressure BoilerThe boiler vent location is: - correct answer Highest part of steam side of boiler What 2 elements in fuel oil produce most of its heat? - correct answer Carbon and Hydrogen A 100 psi boiler has dry saturated steam temperature of 638 degrees F. What is the water temperature? - correct answer 638 degrees F A 2 inch boiler tube has a wall thickness of 3/16 inch. What is its inside diameter? - correct answer 1 5/8 Failure of what device causes a furnace explosion? - ...

Low Pressure Boiler Components And Operation Book 1 Chapter 7 Low Water Fuel Cut Offs And Feed water Controls An electric feeder valve will - correct answer Open before the low water cut off line is reached Overheating of boiler heating surface due to low water - correct answer Is the main cause of boiler failure A float operated low water fuel cut off has its switch seep rated from boiler pressure by - correct answer A flexible diaphragm The purpose of a low water fuel cut off is to -...

Low pressure boiler practice test Water, heat and container - correct answer Is necessary to generate steam in a boiler Heating surface - correct answer The _____ is the part of the boiler with water on one side and heat on the other Firetube - correct answer A _____ boiler has heat and gases of combustion that pass through tubes surrounded by water Watertube - correct answer A _____ boiler has water in the tubes and heat and gases of combustion passing around the tubes Baffles - co...

Low Pressure Boilers: Chapter 1 Steam Boilers are generally classified as either? - correct answer High Pressure or Low pressure steam boilers What is a Boiler? - correct answer is a closed vessel used for heating water for generating steam by direct application of heat from combustion fuels or electricity. Boiler Operation Theory? - correct answer During operation, a boiler holds water, transfers heat to the water to make steam, and collects the steam that is produced. boilers have ev...