Black Seal High Pressure Exam
Questions And Answers
What are the four main systems of a steam boiler? - - correct
answer ✅Fuel, Draft, Feedwater, and Steam
What is the first thing an operator should do when entering a
steam boiler room? - - correct answer ✅Check the water level of
the boiler(s)
Describe the design of a firetube boiler - - correct answer ✅Fire
inside the tubes, surrounded by water
What is the primary purpose of Low Water Fuel Cut-Off (LWCO)? - -
correct answer ✅Shut off the fuel supply to the boiler in the event
of low water
How often should the low water cut-off be tested? - - correct
answer ✅Once per day by law. Once per shift is best practice.
What is an alternative way to verify water level without using the
gauge glass? - - correct answer ✅Using the Try Cocks
What is sensible heat? - - correct answer ✅A change in
temperature without a change in matter
,Black Seal High Pressure Exam
Questions And Answers
What unit is used in our industry to measure heat? - - correct
answer ✅BTU's
Describe thermal expansion - - correct answer ✅The tendency of
matter to change in volume in response to a change in temperature
What is the most important rule of safe boiler operation? - - correct
answer ✅Maintain water level
What type of heat is a larger exchange of BTU's and results in a
change in matter without changing temperature? - - correct answer
✅Latent Heat
Which temperature scale is used by the majority of the world? - -
correct answer ✅Celcius
How often, by law, must a boiler be inspected? - - correct answer
✅Annually
A change in temperature is an example of: - - correct answer
✅Sensible heat
, Black Seal High Pressure Exam
Questions And Answers
How many BTU's does it take to change one pound of water into
one pound of steam? - - correct answer ✅970.3
What type of heat is a larger exchange of BTU's? - - correct answer
✅Latent Heat
What is the most common fuel oil used in boilers? - - correct
answer ✅#2
What are the 4 fundamentals of combustion? - - correct answer
✅Mixture, Atomization, Time, Temperature
What PH level is ideal in boiler operation? - - correct answer ✅10-
11.5
Visible black smoke coming from the boiler stack would most likely
be an indication of: - - correct answer ✅A lack of air in the
combustion process
Which type of valve allows the flow of feedwater in one direction
only? - - correct answer ✅Check Valve
Questions And Answers
What are the four main systems of a steam boiler? - - correct
answer ✅Fuel, Draft, Feedwater, and Steam
What is the first thing an operator should do when entering a
steam boiler room? - - correct answer ✅Check the water level of
the boiler(s)
Describe the design of a firetube boiler - - correct answer ✅Fire
inside the tubes, surrounded by water
What is the primary purpose of Low Water Fuel Cut-Off (LWCO)? - -
correct answer ✅Shut off the fuel supply to the boiler in the event
of low water
How often should the low water cut-off be tested? - - correct
answer ✅Once per day by law. Once per shift is best practice.
What is an alternative way to verify water level without using the
gauge glass? - - correct answer ✅Using the Try Cocks
What is sensible heat? - - correct answer ✅A change in
temperature without a change in matter
,Black Seal High Pressure Exam
Questions And Answers
What unit is used in our industry to measure heat? - - correct
answer ✅BTU's
Describe thermal expansion - - correct answer ✅The tendency of
matter to change in volume in response to a change in temperature
What is the most important rule of safe boiler operation? - - correct
answer ✅Maintain water level
What type of heat is a larger exchange of BTU's and results in a
change in matter without changing temperature? - - correct answer
✅Latent Heat
Which temperature scale is used by the majority of the world? - -
correct answer ✅Celcius
How often, by law, must a boiler be inspected? - - correct answer
✅Annually
A change in temperature is an example of: - - correct answer
✅Sensible heat
, Black Seal High Pressure Exam
Questions And Answers
How many BTU's does it take to change one pound of water into
one pound of steam? - - correct answer ✅970.3
What type of heat is a larger exchange of BTU's? - - correct answer
✅Latent Heat
What is the most common fuel oil used in boilers? - - correct
answer ✅#2
What are the 4 fundamentals of combustion? - - correct answer
✅Mixture, Atomization, Time, Temperature
What PH level is ideal in boiler operation? - - correct answer ✅10-
11.5
Visible black smoke coming from the boiler stack would most likely
be an indication of: - - correct answer ✅A lack of air in the
combustion process
Which type of valve allows the flow of feedwater in one direction
only? - - correct answer ✅Check Valve
