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Low Pressure Boilers Questions and
Answers (100% Correct Answers) Already
Graded A+
A Firetube Boiler [ ANS: ] A boiler in which heat and gases of
combustion pass through tubes surrounded by water.
A Watertube Boiler [ ANS: ] A boiler in which water passes through
tubes surrounded by gases of combustion.
Baffles [ ANS: ] Used in boilers to direct the gases of combustion
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over the boiler heating surface.
Sensible Heat [ ANS: ] the heat we can feel and measure with a
thermometer
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Heat Exchanger [ ANS: ] used to transfer heat from one substance
to another without allowing the materials to mix.
Air Mixes with fuel and burns in the: [ ANS: ] Combustion Chamber
Combustion that occurs when fuel is burned using only the
theoretical amount of air: [ ANS: ] Perfect Combustion
Provides the air necessary for combustion [ ANS: ] The Draft System
A Cast Iron Boiler [ ANS: ] Does NOT use tubes.
To increase efficiency of a cast iron boiler: [ ANS: ] the heating
surface is increased
The Four systems necessary to operate a boiler are: [ ANS: ]
Feedwater, Fuel, Draft, Condensate
The pressure caused by the weight of air surrounding the earth: [
ANS: ] Atmospheric Pressure
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The amount of energy needed to raise the temperature of 1
pound of water 1 degree F. [ ANS: ] One BTU
A component directly attached to the boiler that is required for
the operation of the boiler: [ ANS: ] Boiler Fitting
The nonflammable material used to insulate the outer surface of
the boiler from heat is the: [ ANS: ] Refractory
The most important valve on a boiler [ ANS: ] Safety Valve
The MAWP on a low pressure boiler is: [ ANS: ] 15 PSI
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Total Force on a safety valve is equal to [ ANS: ] Area times
Pressure
The ASME Code states that the boilers with over 500 square feet of
heating surface must have: [ ANS: ] two or more safety valves
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The range of the pressure gauge should be: [ ANS: ] 1.5 to 2 times
the MAWP of the boiler
The Steam pressure gauge on a boiler is calibrated to read: [ ANS:
] Pounds per square inch
Steam is prevented from entering the Bourdon tube of the
pressure gauge by a: [ ANS: ] Siphon
A gauge that can read either vacuum or pressure [ ANS: ]
Compound Pressure Gauge
Safety valves are designed to pop open and stay open until there
is a: [ ANS: ] 2 to 4 PSI drop in pressure
Impurities that build up on the surface of the water in the boiler
prevent: [ ANS: ] steam from breaking through the surface of the
water
The operating range of a boiler is controlled by: [ ANS: ] pressure
control
For Expert help and assignment solutions, +254707240657
Low Pressure Boilers Questions and
Answers (100% Correct Answers) Already
Graded A+
A Firetube Boiler [ ANS: ] A boiler in which heat and gases of
combustion pass through tubes surrounded by water.
A Watertube Boiler [ ANS: ] A boiler in which water passes through
tubes surrounded by gases of combustion.
Baffles [ ANS: ] Used in boilers to direct the gases of combustion
© 2025 Assignment Expert
over the boiler heating surface.
Sensible Heat [ ANS: ] the heat we can feel and measure with a
thermometer
Guru01 - Stuvia
Heat Exchanger [ ANS: ] used to transfer heat from one substance
to another without allowing the materials to mix.
Air Mixes with fuel and burns in the: [ ANS: ] Combustion Chamber
Combustion that occurs when fuel is burned using only the
theoretical amount of air: [ ANS: ] Perfect Combustion
Provides the air necessary for combustion [ ANS: ] The Draft System
A Cast Iron Boiler [ ANS: ] Does NOT use tubes.
To increase efficiency of a cast iron boiler: [ ANS: ] the heating
surface is increased
The Four systems necessary to operate a boiler are: [ ANS: ]
Feedwater, Fuel, Draft, Condensate
The pressure caused by the weight of air surrounding the earth: [
ANS: ] Atmospheric Pressure
, 2
For Expert help and assignment solutions, +254707240657
The amount of energy needed to raise the temperature of 1
pound of water 1 degree F. [ ANS: ] One BTU
A component directly attached to the boiler that is required for
the operation of the boiler: [ ANS: ] Boiler Fitting
The nonflammable material used to insulate the outer surface of
the boiler from heat is the: [ ANS: ] Refractory
The most important valve on a boiler [ ANS: ] Safety Valve
The MAWP on a low pressure boiler is: [ ANS: ] 15 PSI
© 2025 Assignment Expert
Total Force on a safety valve is equal to [ ANS: ] Area times
Pressure
The ASME Code states that the boilers with over 500 square feet of
heating surface must have: [ ANS: ] two or more safety valves
Guru01 - Stuvia
The range of the pressure gauge should be: [ ANS: ] 1.5 to 2 times
the MAWP of the boiler
The Steam pressure gauge on a boiler is calibrated to read: [ ANS:
] Pounds per square inch
Steam is prevented from entering the Bourdon tube of the
pressure gauge by a: [ ANS: ] Siphon
A gauge that can read either vacuum or pressure [ ANS: ]
Compound Pressure Gauge
Safety valves are designed to pop open and stay open until there
is a: [ ANS: ] 2 to 4 PSI drop in pressure
Impurities that build up on the surface of the water in the boiler
prevent: [ ANS: ] steam from breaking through the surface of the
water
The operating range of a boiler is controlled by: [ ANS: ] pressure
control
