Study guides, Class notes & Summaries

Boiler license Exam Questions and Correct Answers The primary purpose of establishing plant safety rules is to: - Answer-protect workers and equipment How are the sections of a cast-iron boiler connected? - Answer-push nipples and bolts Cast-iron boilers are built for what type of draft firing? - Answer-mechanical forced and/or induced What is the maximum pressure of a low pressure steam boiler? - Answer-15 psi What is the maximum temperature and pressure of a low pressure hot water ...

Natural draft is produced by? - answer; difference in temperature outside chimney from inside chimney If a draft fan is located between the boiler and chimney, what type of draft system is it? - answer; Induced draft boiler fittings are important for: - answer; safety only thermostatic traps remove air and cool condensate: true or false - answer; True The main purpose of testing a safety value is to: - answer; make sure valve operates freely when testing a safety valve by hand, yo...

MN Boiler License Exam Questions and Answers All Correct what are the conditions necessary for good combustion? a) low sulfur content b) Thermal, thermocoupler, tubular c) turbulence, temperature, time 3T's - Answer-c) turbulence, temperature, time 3T's why is secondary air necessary in hand fired boilers? a) Necessary to burn the combustible gases b) if primary air should fail c) used only if sulfur content is high - Answer-a) Necessary to burn the combustible gases when pressur...

Boiler License Test Questions with Correct Answers Natural draft is produced by? - Answer-difference in temperature outside chimney from inside chimney If a draft fan is located between the boiler and chimney, what type of draft system is it? - Answer-Induced draft boiler fittings are important for: - Answer-safety only thermostatic traps remove air and cool condensate: true or false - Answer-True The main purpose of testing a safety value is to: - Answer-make sure valve operates fre...

Boiler License Exam Questions with All Correct Answers When applying the 90% rule to the output of 500 HP, its output would be - Answer15525 pph A high pressure boiler can be used in a low pressure situation: - Answer-sometimes It takes BLANK BTUs to raise 5 pounds of water from 200 to 212 degrees F - Answer60 Minnesota Operators license are renewed every - Answer-2 years The circumference of a circle with a radius of 3 inches is - Answer-18.84 inches For Minnesota Operators licensing p...

MN Boiler License 2023 Exam Questions with Correct Answers What is the maximum boiler horsepower you may take charge of on a chief engineer's license? - Answer-Unlimited A 1st class engineer may take charge of a boiler plant not to exceed - Answer-500 Boiler HorsePower If you were to fail a chief engineer's exam, how long must you wait before you would be allowed to take the test again - Answer-30 Days What should be displayed in the boiler room? - Answer-Engineer's License and E...

MN Boiler license 2023 Exam Questions with Complete Solutions What is the unit called that controls starting and stopping of the burner by sensing temperature of water in a hot water boiler? - Answer-Aquastat What controls the temperature of the water in a hot water boiler system? - AnswerAquastat or remote temperature monitoring system What safety devices should be installed on a hot water heating boiler? - Answer-Code safety valve(s) Low water fuel cutoff What removes air from a hot...

Maryland boiler license Exam Questions and Answers All Correct The number of blowdowns required is determined by - Answer-boiler water analysis А __________pump is a boiler accessory used to draw condensate back from the system by producing negative pressure on the condensate return lines. - AnswerVacuum Oxygen in the boiler water causes - Answer-pitting A therm is equivalent to________ Btu - Answer-100,000 A(n) ________draft fan is located before the furnace. - Answer-forced Impuriti...

Boiler Operator Licensing Exam Questions with Correct Answers 1 or more safety valves - Answer-all steam boilers must have Locked closed - Answer-before anyone enters the boiler drum, the main steam stop valve, bottom blowdown valves, & feedwater valves should be 212 degrees F - Answer-at atmospheric pressure, water begins to boil at approximately Fuel oil, gas, & coal - Answer-fuels most commonly used in boilers Steam pressure gauge - Answer-must be connected to the highest part of th...

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