Water boiler test - Study guides, Class notes & Summaries

DC 3rd Class Boiler Exam Prep: Essential Formulas and Constants for Success Length x Width - Area of a rectangle .7854 x Diameter² - Area of a Circle Length x Width x Height - Volume of a Box .7854 x Diameter² x Length - Volume of a Cylinder π x Diameter - Circumference of a Circle Pound (lb) - Unit of Force Pressure ÷ Area - Formula for Force in-lb or ft-lb - Unit of Work Force x Distance - Formula for Work ft-lb/min - Unit of Power = Work ÷ Time or (Force x Distance) ÷ Time...

4A Unit 11 Questions and Answers Rated A+ (4-055-8.1) In a bottom-supported boiler, the steam drum is usually: Select one: a. Placed between the centre line of the unit b. Supported by piers c. Supported by the water tubes d. Supported by an overhead girder arrangement c. Supported by the water tubes (4-054-1.16) The electrode type boiler: Select one: a. Requires water that conducts electricity b. Utilizes bundles of electric elements c. Must operate at very constant pressu...

How may fittings be attached to a high pressure boiler? a. threaded b. certified welds c. flanges d. any of the above - Answer-d. any of the above Which test determines the relieving capacity of safety valves? a. hydrostatic test b. accumulation test c. orsat test ration test - Answer-b. accumulation test Flue gasses can leave at high temperatures. We can recover some of this heat using a(n): a. flash tank b. open feedwater heater c. economizer d. air compressor - Answer-c. eco...

Where are the return openings located regarding air distribution systems? - Answer-Return air openings are located on inner walls. The minimum temperature of the water used in a hydrostatic test of a boiler cannot be less than what temperature? - Answer-20 degrees Celsius Which of the following are causes of pressure explosions? 1. effects of corrosion 2. weak pilot flame 3. stressed material due to heating too quickly 4. insufficient purge 5. scale and sludge build-up - Answer-1, 3, 5 ...

Gases of Combustion that cool on Contact with the boiler heating Surface before combushion is completed Cause a(n) _________ correct answer: Formation of soot and smoke In the event of a flame failure, the programmer will______ correct answer: Secure the fuel, purge the firebox, and then shut down Boil the water must be conditioned to prevent ______ (3 Answers) correct answer: Formation of scale, oxygen pitting, carryover Rank refers to the __________ of the coal correct answer: Deg...

NYC HIGH PRESSURE STEAM EXAM QUESTIONS AND ANSWERS LATEST UPDATED 2024/2025 (GRADED) The maximum blow down for a safety valve on a forced flow steam generator or high temperature water boiler shall be of what percent of the set pressure? - Answer - 10%. HP Code: 14-9.12 3 Who oversees the code for any plumbing installations? - Answer - The NYC Plumbing Code NYC Mech: 1002.1 4 When will anchorage or guides be inspected? - Answer - Annually. NYC Mech: 1210.3.1.2 5 How many brass washout plu...

MN Boiler License Exam Questions and Answers, Latest Updated 2024/2025 (GRADED) what are the conditions necessary for good combustion? a) low sulfur content b) Thermal, thermocoupler, tubular c) turbulence, temperature, time 3T's - answerc) 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 - answera) Necessary to burn the combustible gase...

Stationary Engineer Exam - Questions and Answers (Complete Solutions) How much clearance from the top of the boiler is needed for a HP boiler that produces 70000 lbs of steam? 7 feet On a gas fired boiler what is the proper gas to air mixture 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? TH= (Ca x 2....

Ohio Stationary Steam Engineer Exam - Questions with Verified Answers A boiler has carried a large slug of water over into steam. This condition is called: Priming How do steam separators work? they cause a sudden change in direction that throws water out On a pressure gauge what is the minimum size piping that can be used? 1/4" if copper 1/2" if steel When may copper tubing not be used? over 406 degrees What common type of expansion joint is used universally throughout a steam distribution ...

Ohio boiler licensing exam questions with complete answers Which type of heat transfer takes place by actual physical contact, from molecule to molecule, without displacing the molecules? Conduction When designing a boiler, special consideration must be given to heat transmision by? Radiation, conduction, and convection What parts make up the heating surface in a scotch marine firetube boiler? The flue and the tubes Which type of boiler is the most econimical to build? Firetube...