In a firetube boiler Study guides, Class notes & Summaries
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Low pressure boiler practice test fully solved 2023/2024
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Low pressure boiler practice test 
Water, heat and container - correct answer Is necessary to generate steam in a boiler 
 
Heating surface - correct answer The _____ is the part of the boiler with water on one side and heat on the other 
 
Firetube - correct answer A _____ boiler has heat and gases of combustion that pass through tubes surrounded by water 
 
Watertube - correct answer A _____ boiler has water in the tubes and heat and gases of combustion passing around the tubes 
 
Baffles - co...
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Ohio boiler licensing exam questions with complete answers
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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...
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Ohio boiler licensing exam 2024 with 100% correct answers
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Which type of heat transfer takes place by actual physical contact, from molecule to molecule, without displacing the molecules? - correct answer Conduction 
 
When designing a boiler, special consideration must be given to heat transmision by? - correct answer Radiation, conduction, and convection 
 
What parts make up the heating surface in a scotch marine firetube boiler? - correct answer The flue and the tubes 
 
Which type of boiler is the most econimical to build? - correct answer Firetube...
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4th Class Power Engineering Unit A11: Introduction to Boiler Designs Already Passed
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4th Class Power Engineering Unit A11: 
Introduction to Boiler Designs Already 
 
Passed 
 
This type of boiler is more tolerant of Class 1 water treatment, because they are more resistant to 
corrosion: 
 
Select one: 
a. coil type 
b. fire tube 
c. cast iron 
 
d. water tube c 
 
One disadvantage of a firetube boiler is: 
Select one: 
a. higher maintenance costs than watertube boilers 
b. slow response to load changes 
c. require very high quality feedwater 
d. slow to bring up to operating pre...
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Power Engineering 4th Class - Unit A11 Questions and Answers 100% Pass
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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...
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4A Unit 11 Questions and Answers Rated A+
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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...
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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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boiler exam study guide 1 2023/2024 already passed
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boiler exam study guide 115 psi - correct answer A low pressure steam boiler has a maximum allowable working pressure (MAWP) of up to ___. 
 
One boiler horsepower - correct answer The evaporation of 34.5 lb of water/hr from and at a feedwater temperature of 212°F 
 
through the tubes - correct answer In a firetube boiler, the heat and gases of combustion pass ___. 
 
in high or low pressure plants - correct answer A firetube boiler may be used ___. 
 
a firetube boiler - correct answer Because...
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Boiler Operator State Test
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A low pressure steam boiler has a maximum allowable working pressure (MAWP) of up to - Answer- 15 psi 
 
The evaporation of 34.5 lb of water/hr from and at a feedwater temperature of 212 degrees F is defined as - Answer- one boiler horsepower 
 
In a firetube boiler, the heat and gases of combustion pass - Answer- through the tubes 
 
A firetube boiler may be used - Answer- in high or low pressure plants 
 
Because of the large volume of water, the boiler most likely to cause a boiler explosion ...
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boiler exam study guide 1 Question and answers correctly solved 2023/2024
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boiler exam study guide 1 Question and answers correctly solved 2023/202415 psi - correct answer A low pressure steam boiler has a maximum allowable working pressure (MAWP) of up to ___. 
 
One boiler horsepower - correct answer The evaporation of 34.5 lb of water/hr from and at a feedwater temperature of 212°F 
 
through the tubes - correct answer In a firetube boiler, the heat and gases of combustion pass ___. 
 
in high or low pressure plants - correct answer A firetube boiler may be used __...
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