Water tube boiler - Study guides, Class notes & Summaries

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...

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...

1/2" - ANSWER-Sight Glass Minimum Connection 3/4" - ANSWER-Low Water Cut-off Draw Minimum Connection 1" - ANSWER-Water Column Minimum Connection 3/4" - ANSWER-Control Manifold Minimum Connection 1/4" - ANSWER-Sight Glass Drain Minimum Connection 1" - ANSWER-Bottom Blow-Off Minimum Connection 2 1/2" - ANSWER-Bottom Blow-Off Maximum Connection 2 1/2" - ANSWER-Surface Blow-Down Maximum Connection 3" - ANSWER-Threaded Safety Valve Maximum Connection 4 1/2" - ANSW...

How do you determine if a boiler has sufficient safety valve capacity - Answer-The accumulation test determines if the valve will discharge all the steam pressure, without allowing the pressure to rise more than 6% more than valve setpoint If a safety valve opens at 100 psi, what pressure should it close at? What requirements governors safety valve blowdowns? - Answer-A: 96-98 psi, with no chatter, with a blowdown of no more than 4 psi of set pressure. A safety valve is limited to how many...

Power Engineering 4th Class - Unit A11 Questions and Answers 100% Pass (4-051-2.4) An early shell-type boiler had ___________ as its heating surface: Select one: a. Only the lower part of the shell b. The lower part of the shell and the rear plate or head c. The total shell side and one end plate or head d. Two passes along the shell or drum a (4-052-3.3) An advantage of a vertical tubeless firetube boiler is that it requires: Select one: a. Relatively small floor space b. No fu...

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

Power Engineering Technology (Pet Yr. 1): 4a High Pressure Boilers Exam 100% Pass A characteristic that made early boilers very inefficient was: a. small heating surface b. an excess of flat surfaces c. the internal furnace d. lack of good quality fuels a A hot water boiler is considered a high temperature water boiler when: a. it's design pressure is less than 1100kPa b. it's operating temperature is greater than 120 degrees celsius c. it's operating temperature is less th...

Stationary Engineer Exam Questions and Answers Latest (GRADED A+) 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 1...

Stationary Engineer Exam Questions and Answers Latest 2024/2025 (GRADED A+) 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 hard...

#1 How can you loose your license? - Answer-drinking on the job, sleeping on the job, negligence unsafe work, signing a falsified license application for someone, failing to renew your license annually #2 What must you do if you change jobs? - Answer-Notify city hall if you change jobs, address or retire #3 Why should you do rounds? - Answer-Find and correct problems to prevent breakdowns. Keeping permanent records will make it easy to forecast most breakdowns because you will get to know e...