Power boiler Study guides, Class notes & Summaries

Power Engineering - 4B (Part 2) 1080 Study Questions with Complete 100% Verified Answer Latest Updated 2024/2025 Activated carbon is produced from carbonaceous material such as: 1. coal 2. wood 3. magnesium 4. coconut shells 5. peat a. 1, 3, 4, 5 b. 1, 2, 4, 5 c. 1, 2, 3, 5 d. 2, 3, 4, 5 e. 1, 2, 3, 4 - Correct Answer b. 1, 2, 4, 5 Pitting of boiler metal may be prevented by a. agitating the feed water before it enters the boiler b. the addition of sodium sulphate to the feed...

Power Engineering 4th Class - A12 Questions and Answers Rated A+ Natural draft is produced in a boiler furnace when: a. Hot flue gases condense b. Gases in the stack have more mass than an equal column of outside air c. Gases in the stack have less mass than an equal column of outside air d. Hot flue gases contract so that each cubic meter has more mass c If the power is cut off to an automatic gas valve, the valve will: a. Open widely b. De-pressurize the gas train c. Close im...

4th Class Power Engineering Unit A12: Elements of Boiler Systems Questions and Answers 100% Pass In falling shot cleaning, iron shot or pellets, _________ mm in diameter fall by gravity: Select one: a. 6 b. 9 c. 3 d. 12 a With this system, not electrical power is required to feed make-up water to the boiler: Select one: a. gravity return system b. pump return system c. low flow return system d. high side return system a Combustion air provide din addition to primary and ...

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 (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....

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...

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...

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...

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...