Black Seal High Pressure Exam Questions with Correct Answers

Black Seal High Pressure Exam Questions with Correct 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 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