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