What is a boiler Study guides, Class notes & Summaries

What is the first thing a tech should do when arriving at a no combustion call? - Answer- Ask how many times the customer reset the unit. What is the best long term solution for preventing a clogged nozzle? - Answer- -Remove any underground storage tanks. -Install a quality oil filter. -Cut the suction line 10" above the tank outlet to prevent sludge. Hot water and steam valves are interchangeable. - Answer- False When in the presence of a flame, a cad cell normally reads.. - Answer...

What is a boiler Correct Answer a closed metal container (pressure vessel) which water is heated to produce steam or heated water What is steam Correct Answer the vapor that forms when water is heated to its boiling point When did the greatest impact of the use of steam power occur Correct Answer during the industrial revolution 18th and early 19th century Who invented the steam engine and when Correct Answer James Watt of Scotland in 1736 How is steam produced Correct Answer water i...

How much clearance from the top of the boiler is needed for a HP boiler that produces 70000 lbs of steam? - Answer- 7 feet On a gas fired boiler what is the proper gas to air mixture - Answer- 30%-70% and in special arrangements it can be as high as 100% . ANSWER CHAPTER 11 remember% What is the total hardness in a system that was found to have calcium hardness of 60ppm and magnesium hardness of 18ppm and carbon hardness of 12 ppm? - Answer- TH=(Ca x 2.5) + (Mg x 4.1)nTH=(60 x 2.5) + (18...

Minnesota Special Engineer Boiler License Exam Prep (2023/2024 Update) | Questions and Verified Answers| 100% Correct Q: A feed water line must have what two valves? Answer: Check & stop Q: After a new boiler is installed, what must be performed? Answer: Hydrostatic test Q: All stationary boilers of what pressure must have 2 valves on the blow off line? Answer: 100psi Q: How is boiler efficiency calculated? Answer: Output divided by input Q:...

Nyc high pressure boiler license Exam Questions with Correct Answers The minimum blowdown for a spring loaded safety valve shall be of what percent of set pressure? - Answer-10% How is the main steam pressure gages tested? - Answer-With an inspectors gage Who is in charge of the code for any plumbing installations? - Answer-The nyc plumbing code When will anchorage or guides be inspected? - Answer-Annually How many brass washout plugs does a miniature boiler have? - Answer-3 brass wa...

What must you do if you notice code violations in a homeowners house? - Answer Notify them and recommend ways to address them What must be done when performing an annual tune-up on a heating system? - Answer A combustion efficiency test and a copy must be posted on site Whenever a furnace, direct fired hot water heater, or boiler is installed the total installation must be brought into compliance with what requirements BEFORE appliance can be fired? - Answer NFPA 31 When an eme...

When using a low voltage T-stat for heating and cooling, when would there be a jumper between Rh and Rc? Select one: a. When using a single transformer system b. When heating with an oil boiler c. When heating with a gas boiler d. When using a two transformer system - Answer-A) When Using a single transformer system Digital thermostats usually display temperature, time of day, programming and operating status. Select one: True False - Answer-True With the fan switch in the on position...

What is a return tubular boiler? correct answer: A return tubular boiler - the products of combusting passing through the tubes while the water surrounds the tubes. What is a water tube boiler? correct answer: A water tube boiler - water inside the tubes while the production of combustion passes around the tubes. How is the head of a B&W boiler stayed? correct answer: There are no stays Why are the tubes on a Sterling Boiler bent? correct answer: So they can enter the drum radially....

What is a general requirement of the location of the installation of a boiler? - ANSWERSAdequate clearance from combustile construction What temperature must the materials remain under during combustion? - ANSWERS170 degrees What is a requirement for the access of the boiler? - ANSWERSAccess for operation and maintenance must not be hazardous What is required upon installation to operate a boiler? - ANSWERSInspection and test resulting in equipment use permit from commissioner How of...

Boiler water is treated in order to prevent a) sludge, mud, pitting, corrosion b) foaming, corrosion, carryover, sludge c) sludge, corrosion, scale, carryover d) scale, sludge, mud, pitting e) foaming, carryover, pitting, corrosion c Dissolved solids in raw water a) cause pitting of boiler surfaces b) cause grooving of piping surfaces c) are organic matter d) cannot be removed with filters e) cause corrosion of boiler surfaces d Boiler surfaces may have what appears to ...