High pressure boilers Study guides, Class notes & Summaries
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High Pressure Boilers Exam 1
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High Pressure Boilers Exam 1
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High Pressure Boilers questions with correct answers
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In conduction the heat transfers through? CORRECT ANSWER-Contact 
 
The Transfer of heat from a fluid flowing over the surface of a body? CORRECT ANSWER-Convection 
 
The flow of heat through electromagnetic waves is? CORRECT ANSWER-Radiation 
 
A power steam boiler operates at... CORRECT ANSWER-greater than 15 psi steam, or hotwater at 160 psi, or 250 F° 
 
What is a super critical boiler? CORRECT ANSWER-One that operates in excess of 3206 psia or 705.4 degrees F° 
 
A boiler HP is... CORRECT...
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Nyc high pressure boiler license questions with correct answers
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The minimum blowdown for a spring loaded safety valve shall be of what percent of set pressure? CORRECT ANSWER-10% 
 
How is the main steam pressure gages tested? CORRECT ANSWER-With an inspectors gage 
 
Who is in charge of the code for any plumbing installations? CORRECT ANSWER-The nyc plumbing code 
 
When will anchorage or guides be inspected? CORRECT ANSWER-Annually 
 
How many brass washout plugs does a miniature boiler have? CORRECT ANSWER-3 brass washout plugs, 1" in size 
 
How often i...
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High Pressure Boilers questions with correct answers
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firetube CORRECT ANSWER-A(n) ___ steam boiler has hot gases of combustion passing through tubes that are surrounded by water. 
 
thermal efficiency CORRECT ANSWER-The ratio of heat absorbed by the boiler( output) to the heat available in the fuel (input) is known as the ___. 
 
scotch marine CORRECT ANSWER-A ___ boiler is a firetube boiler with an internal furnace completely surrounded by water to increase the boiler heating surface. 
 
watertube CORRECT ANSWER-A(n) ___ steam boiler has water in...
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Power Engineering Technology (Pet Yr. 1): 4a High Pressure Boilers Exam 100% Pass
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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...
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High pressure boiler questions with correct answers
- Exam (elaborations) • 16 pages • 2023
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ASME requires low pressure Steam boiler to be pressure tested how often CORRECT ANSWER-Annually 
 
Which of these should be used on a electrical fire CORRECT ANSWER-Class C 
 
On a low pressure boiler how often should you check the safety valve CORRECT ANSWER-10 days 
 
What is the purpose of the lower part of the water column CORRECT ANSWER-Collects settlements in foreign material 
 
If certain grade of fuel are not preheated properly they may cause CORRECT ANSWER-Poor combustion and high fuel ...
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High Pressure Boilers 1069 * Questions and Answers with Rationales Updated 2024
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c - correct answer Boiler water is treated in order to prevent 
a) sludge, mud, pitting, corrosion b) foaming, corrosion, carryover, sludge c) sludge, corrosion, scale, carryover d) scale, sludge, mud, pitting e) foaming, carryover, pitting, corrosion d - correct answer Dissolved solids in raw water 
a) cause pitting of boiler surfaces b) cause grooving of piping surfaces c) are organic matter d) cannot be removed with filters e) cause corrosion of boiler surfaces a - correct answer Boiler surfa...
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High Pressure Boilers questions with correct answers
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Boiler CORRECT ANSWER-Closed Vessel used for heating water which generates steam through combustion of fuels or electricity. 
 
ASME CORRECT ANSWER-American Society Of Mechanical Engineers 
 
Low Pressure Boiler CORRECT ANSWER-(MAWP) 15 psi 
 
High Pressure boiler CORRECT ANSWER-Operates Over 15 psi 
 
Boiler Horsepower CORRECT ANSWER-Amount of energy needed to evaporate 34.5lb of water/ hr 
 
Fire tube Boiler CORRECT ANSWER-Gasses of combustion pass through tubes that are surrounded by water 
 ...
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High Pressure Boilers Midterm Exam questions with correct answers
- Exam (elaborations) • 10 pages • 2023
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A low pressure boiler operates at a pressure of not more than __________ psi CORRECT ANSWER-- 15 
 
If a boiler operates at 100 hp, how much steam production is that equal to? CORRECT ANSWER-- 3450 lb/hr 
34.5 x 100 
 
As steam pressure increases, there is a corresponding increase in __________ CORRECT ANSWER-- temperature 
 
At what temperature does water boil and turn into steam? CORRECT ANSWER-- 212 F 
 
Combustion efficiency is the ratio of heat absorbed by boiler output to the heat availab...
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High Pressure Boilers Exam 1 with complete solutions
- Exam (elaborations) • 115 pages • 2024
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High Pressure Boilers Exam 1
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