Black seal high pressure
What are the four main systems of a steam boiler? ANS: Fuel, Draft, Feedwater, and Steam
What is the first thing an operator should do when entering a steam boiler room? ANS: Check the water
level of the boiler(s)
Describe the design of a firetube boiler ANS: Fire inside the tubes, surrounded by water
What is the primary purpose of Low Water Fuel Cut-Off (LWCO)? ANS: Shut off the fuel supply to the
boiler in the event of low water
How often should the low water cut-off be tested? ANS: 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? ANS: Using the Try Cocks
What is sensible heat? ANS: A change in temperature without a change in matter
What unit is used in our industry to measure heat? ANS: BTU's
Describe thermal expansion ANS: 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? ANS: Maintain water level
What type of heat is a larger exchange of BTU's and results in a change in matter without changing
temperature? ANS: Latent Heat
, Which temperature scale is used by the majority of the world? ANS: Celcius
How often, by law, must a boiler be inspected? ANS: Annually
A change in temperature is an example of: ANS: Sensible heat
How many BTU's does it take to change one pound of water into one pound of steam? ANS: 970.3
What type of heat is a larger exchange of BTU's? ANS: Latent Heat
What is the most common fuel oil used in boilers? ANS: #2
What are the 4 fundamentals of combustion? ANS: Mixture, Atomization, Time, Temperature
What PH level is ideal in boiler operation? ANS: 10-11.5
Visible black smoke coming from the boiler stack would most likely be an indication of: ANS: A lack of air
in the combustion process
Which type of valve allows the flow of feedwater in one direction only? ANS: Check Valve
Which two minerals contribute to scale? ANS: Calcium and Magnesium
What device is used to measure draft? ANS: Manometer
What are the four main systems of a steam boiler? ANS: Fuel, Draft, Feedwater, and Steam
What is the first thing an operator should do when entering a steam boiler room? ANS: Check the water
level of the boiler(s)
Describe the design of a firetube boiler ANS: Fire inside the tubes, surrounded by water
What is the primary purpose of Low Water Fuel Cut-Off (LWCO)? ANS: Shut off the fuel supply to the
boiler in the event of low water
How often should the low water cut-off be tested? ANS: 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? ANS: Using the Try Cocks
What is sensible heat? ANS: A change in temperature without a change in matter
What unit is used in our industry to measure heat? ANS: BTU's
Describe thermal expansion ANS: 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? ANS: Maintain water level
What type of heat is a larger exchange of BTU's and results in a change in matter without changing
temperature? ANS: Latent Heat
, Which temperature scale is used by the majority of the world? ANS: Celcius
How often, by law, must a boiler be inspected? ANS: Annually
A change in temperature is an example of: ANS: Sensible heat
How many BTU's does it take to change one pound of water into one pound of steam? ANS: 970.3
What type of heat is a larger exchange of BTU's? ANS: Latent Heat
What is the most common fuel oil used in boilers? ANS: #2
What are the 4 fundamentals of combustion? ANS: Mixture, Atomization, Time, Temperature
What PH level is ideal in boiler operation? ANS: 10-11.5
Visible black smoke coming from the boiler stack would most likely be an indication of: ANS: A lack of air
in the combustion process
Which type of valve allows the flow of feedwater in one direction only? ANS: Check Valve
Which two minerals contribute to scale? ANS: Calcium and Magnesium
What device is used to measure draft? ANS: Manometer
