What is draft on a boiler - Study guides, Class notes & Summaries
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Main propulsion Boiler Operation Exam Questions With Correct Answers, Latest Updated 2024/2025 (GRADED)
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Main propulsion Boiler Operation Exam Questions With Correct Answers, Latest Updated 2024/2025 (GRADED) Boiler overload capacity is normally what percentage of boiler full power capacity? - 
Answer 120% 
A pressure specified by the boiler manufacturer as a criterion for the boiler design is 
termed as? - Answer Design pressure 
What is the minimum steam drum pressure on an operating boiler? - Answer 85% of 
boiler operating pressure 
What is the minimum steam drum pressure on an operating boiler...
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Oil Burner License Exam Questions and Answers, Latest Updated 2024/2025 (Verified Answers)
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Oil Burner License Exam Questions and Answers, Latest Updated 2024/2025 (Verified Answers) What is the first thing a tech should do when arriving at a no combustion call? - AnswerAsk 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. - A...
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MN Boiler License Exam Questions and Answers, Latest Update 2024/2025
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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 gases 
when pressure increases on steam from a given amount of water what happens to...
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Oil Burner License Exam Questions and Answers, Latest Updated 2024/2025 (Verified Answers)
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Oil Burner License Exam Questions and Answers, Latest Updated 2024/2025 (Verified Answers) 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- 300-1000 ohms 
If a pump is used to bring oil to a l...
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Gas Fitter 2 Practice Test Exam 2024 Questions and Answers.
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Gas Fitter 2 Practice Test Exam 2024 Questions and Answers. 
A room heater installed in either a sleeping area or public area shall be: 
A. direct vent only 
B. equipped with a regulator 
C. equipped with a fan 
D. equipped with an on / off switch on the wall - correct answer -B 
What type of vent must be used when the vent of a wall furnace will be concealed in a partition wall? 
A. B vent 
B. L vent 
C. BH vent 
D. BW vent - correct answer -D 
Single wall vent connectors: 
A. may pass through ...
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Ohio Stationary Steam Engineer
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Ohio Stationary Steam Engineer 
 
Combustion efficiency may be increased by_____ the primary air - Preheating 
 
What is the purpose of cinder reinjection? - increase efficiency 
 
2 forces of equal intensity acting in opposite directions is? - tension 
 
What is true about the dew poimt of flue gasses - dew point is the temp at which the gasses 
will condense 
 
What will not cause high stack temps? - plugged dry pipe 
 
What is true about smoke - smoke consists of unburned hydrocarbons 
 
WHat...
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Stationary Engineer Exam Questions and Answers Latest 2024-2025 (GRADED A+)
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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...
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ABSA 5th Class | 250 Questions | With Completed Solutions.
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ABSA 5th Class | 250 Questions | With Completed Solutions. 
Where are the return openings located regarding air distribution systems? 
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? 
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. insuffic...
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Gas Fitter 2 Practice Test - Questions and Answers
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Gas Fitter 2 Practice Test - Questions and Answers Installation of one 400,000 btu natural draft boiler in a tight enclosure would require an air supply opening of? A. 114 sq in B. 50 sq in C. 58 sq in D 112 sq in With the installation of a 75,000 btu atmospheric hot water tank in a tight house, how much free air is required when using a round duct? A. 11" B. 4" C. 7" D. 3" A portable infrared heater that cannot be interlocked shall be connected to a: A. CO2 monitor alarm B. CO monitor ala...
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Boiler license Exam Questions and Correct Answer
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Boiler license Exam 
Questions and 
Correct Answers 
The primary purpose of establishing plant safety rules is to: - Answer-protect workers 
and equipment 
How are the sections of a cast-iron boiler connected? - Answer-push nipples and bolts 
Cast-iron boilers are built for what type of draft firing? - Answer-mechanical forced 
and/or induced 
What is the maximum pressure of a low pressure steam boiler? - Answer-15 psi 
What is the maximum temperature and pressure of a low pressure hot water ...
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