- Study guides, Class notes & Summaries

Safety valve - ANSWER Prevents boiler pressure from rising above the setting of the valve by relieving excessive steam pressure, guarding against hazards of over pressure. Steam supply stop valve - ANSWER The valve installed at the steam outlet of the boiler to shut off the flow of steam.

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2 pages

Written in 2024/2025

Grade A+

shantelleG

if the steam pressure gauge indicates 200 PSIG, the absolute pressure is______ - ANSWER 214.7 a boiler is operating at 400 PSI, and the safety valve opens at 410 PSI and closes at 398 PSI. The blowdown is______psi - ANSWER 12 an oil cooler is commonly used with a(n) ________ when operating in conjunction with a turbo-generator - ANSWER steam turbine_________ are necessary for complete combustion - ANSWER time, temperature, mixture, and atomization

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20 pages

Written in 2024/2025

Grade A+

shantelleG

How many way can heat be transferred? - ANSWER Three (Conduction -- Convection -- Radiation) How may types of low pressure are there? - ANSWER Three Boiler and boiler fitting used in the state of Minnesota must be constructed to what code? - ANSWER A.S.M.E What controls the starting ans stopping of the burner by sending the temperature of the water in a hot water boiler? - ANSWER Aqua Stat

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7 pages

Written in 2024/2025

Grade A+

shantelleG

_______________are the most important valves on the boiler - ANSWER Safety Valves highest part of the steam side of the boiler. - ANSWER Safety valves are located on the Only spring-loaded pop type valves are allowed for a ________ - ANSWER safety valve ASME code requires at least__________safety valve on every boiler. - ANSWER one

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36 pages

Written in 2024/2025

Grade A+

shantelleG

Which valve is between the boiler and the return pump - ANSWER check valve what is the function of the check valve - ANSWER prevent the water from returning to the condensation tank from the boiler after the pump shuts off four safety features required on the steam boiler are - ANSWER safety relief valve, blow-down valve, low water cut-off, and pressure gauge

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2 pages

Written in 2024/2025

Grade A+

shantelleG

15 psi - ANSWER A low pressure steam boiler has a maximum allowable working pressure (MAWP) of up to ___. One boiler horsepower - ANSWER The evaporation of 34.5 lb of water/hr from and at a feedwater temperature of 212°F through the tubes - ANSWER In a firetube boiler, the heat and gases of combustion pass ___. in high or low pressure plants - ANSWER A firetube boiler may be used ___.

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24 pages

Written in 2024/2025

Grade A+

shantelleG

The component in which liquid vapor by absorbing heat is called? - ANSWER Evaporator Select the best answer electrical grounding method? - ANSWER Metal stake drive 8 foot into the ground. A _____ valve should be used for throttling purpose? - ANSWER Globe What is the acceptable range for residual sodium sulfite in the boiler maintain? - ANSWER 30-70 What is the BTU content of a gallon of #4? - ANSWER 146,000

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27 pages

Written in 2024/2025

Grade A+

shantelleG

Moving blading in which space between blades is the same size at the blading inlet, and the blading outlet. - ANSWER Impulse Blading To blowdown a boiler equipped with a quick opening and slow opening valve on the bottom blowdown line, the_________. - ANSWER quick opening valve is opened first and closed last. Hardness of water is the measurement in ppm of ________ and ________ in the water. - ANSWER calcium and magnesium

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10 pages

Written in 2024/2025

Grade A+

shantelleG

Area of a rectangle - ANSWER Length x Width Area of a Circle - ANSWER .7854 x Diameter² Volume of a Box - ANSWER Length x Width x Height Volume of a Cylinder - ANSWER .7854 x Diameter² x Length

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19 pages

Written in 2024/2025

Grade A+

shantelleG

Moving blading in which space between blades is the same size at the blading inlet, and the blading outlet. - ANSWER Impulse Blading To blowdown a boiler equipped with a quick opening and slow opening valve on the bottom blowdown line, the_________. - ANSWER quick opening valve is opened first and closed last. Hardness of water is the measurement in ppm of ________ and ________ in the water. - ANSWER calcium and magnesium

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10 pages

Written in 2024/2025

Grade A+

shantelleG

DC Boiler Exam Prep 2015 QUESTIONS WITH COMPLETE SOLUTIONS ._____ keeps the hardness in boiler water in solution so that it cannot settle out on the heating surfaces. – Answer-Chelants .______ cause hardness particles in boiler water to precipitate as heavy sludge that is removed through the bottom blow. – Answer-Phosphates ._______ in boiler water contributes to the formation of CO2. – Answer-High Alkalinity .#2 fuel oil contains approximately ______ Btu/gal – Answer-141,000...

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21 pages

Written in 2024/2025

Grade A+

Examcore

Area of a rectangle - cORRECT sOLUTION Length x Width Area of a Circle - cORRECT sOLUTION .7854 x Diameter² Volume of a Box - cORRECT sOLUTION Length x Width x Height Volume of a Cylinder - cORRECT sOLUTION .7854 x Diameter² x Length Circumference of a Circle - cORRECT sOLUTION π x Diameter Unit of Force - cORRECT sOLUTION Pound (lb) Formula for Force - cORRECT sOLUTION P...

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25 pages

Written in 2024/2025

Grade A+

TeeGrades

DC Boiler Exam Prep Exam Study Guide. Area of a rectangle - answerLength x Width Area of a Circle - answer.7854 x Diameter² Volume of a Box - answerLength x Width x Height Volume of a Cylinder - answer.7854 x Diameter² x Length Circumference of a Circle - answerπ x Diameter Unit of Force - answerPound (lb) Formula for Force - answerPressure ÷ Area Unit of Work - answerin-lb or ft-lb Formula for Work - answerForce x Distance Unit of Power - answerft-lb/min Formula for Power - answe...

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15 pages

Written in 2024/2025

Grade A+

Thebright

DC 3rd Class Test

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49 pages

Written in 2024/2025

Grade A+

Constantina

DC BOILER EXAM PREP 2024 WITH ALL ANSWERS.

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20 pages

Written in 2024/2025

Grade A+

Registerednurse

DC Boiler Exam Prep 2023 (Formulas and constants used for the DC 3rd class boiler exam) QUESTIONS WITH COMPLETE SOLUTIONS

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20 pages

Written in 2024/2025

Grade A+

tivakiok

DC Boiler Exam Prep 2024 QUESTIONS WITH COMPLETE SOLUTIONS Area of a rectangle Length x Width Area of a Circle .7854 x Diameter² Volume of a Box Length x Width x Height Volume of a Cylinder .7854 x Diameter² x Length Circumference of a Circle π x Diameter Unit of Force Pound (lb) Formula for Force Pressure ÷ Area Unit of Work in-lb or ft-lb Formula for Work Force x Distance Unit of Power ft-lb/min Formula for Power = Work ÷ Time or (Force x Distance) ÷ Time Formula for M...

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15 pages

Written in 2024/2025

Grade A+

ireripurity497

DC Boiler Exam Prep 2023 (Formulas and constants used for the DC 3rd class boiler exam) QUESTIONS WITH 100% CORRECT ANSWERS Area of a rectangle - Answer-Length x Width /.Area of a Circle - Answer-.7854 x Diameter² /.Volume of a Box - Answer-Length x Width x Height /.Volume of a Cylinder - Answer-.7854 x Diameter² x Length /.Circumference of a Circle - Answer-π x Diameter /.Unit of Force - Answer-Pound (lb) /.Formula for Force - Answer-Pressure ÷ Area /.Unit of Work -...

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14 pages

Written in 2024/2025

Grade A+

Brainariam

DC Boiler Exam Prep 2015 Questions with Correct Answers (Already Graded A+) How much pressure is applied to a boiler during a hydrostatic test? - Answer- 1-1/2 times the MAWP The size of the bottom blowdown lines can be reduced when ______. - Answer- the boiler has less than 100 ft² of heating surface What four things are required for complete combustion of fuel? - Answer- mixture, atomization, temperature, and time What compound when found in the flue gas is a sign of incomplete comb...

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14 pages

Written in 2024/2025

Grade A+

Scholarsstudyguide

PRACTICE QUESTIONS BUILDER QUESTIONS AND ANSWERS LATESTPRACTICE QUESTIONS BUILDER QUESTIONS AND ANSWERS LATESTPRACTICE QUESTIONS BUILDER QUESTIONS AND ANSWERS LATESTPRACTICE QUESTIONS BUILDER QUESTIONS AND ANSWERS LATESTPRACTICE QUESTIONS BUILDER QUESTIONS AND ANSWERS LATESTPRACTICE QUESTIONS BUILDER QUESTIONS AND ANSWERS LATESTPRACTICE QUESTIONS BUILDER QUESTIONS AND ANSWERS LATEST

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10 pages

Written in 2024/2025

Grade A+

TestBankPrep