CH12 Steam Boiler Operation Questions and Answers;(perfect guide for your final)
water level on all boilers - When taking over a shift, the boiler operator must first check the _______. securing the feed water and allowing the water level in the boiler to drop - The low-water fuel cutoff can be tested by blowing down the low-water fuel cutoff or by _____. warmed up slowly - In order to prevent uneven expansion of the boiler on cold startup, the boiler must be _____. 15 psi - During startup, the boiler vent should remain open until a pressure of approximately _______ is reached. pressure is at least 75% of MAWP - A safety valve can be manually tested when the ________. keeping the superheater drain valve open until the boiler is cut in on-line - Boilers equipped with a superheater must be protected during warm-up by _______. steam - Superheaters are prevented from overheating by the circulation of _______. soot - To ensure high heat transfer rates, _______ should be removed from boiler heating surfaces. boiler vent - During boiler shutdown, the _______ should be opened when the steam pressure in the boiler has dropped to 10 psi to 15 psi. the NOWL - As the boiler is cooling down, the boiler operator must maintain ________. a hydrostatic test - After a boiler has had major repair work done that could affect the boiler internals or has developed a low-water condition, it should be subjected to ________.flame scanner - is used to verify the flame in a burner
Escuela, estudio y materia
- Institución
- Steam Boiler Operation
- Grado
- Steam Boiler Operation
Información del documento
- Subido en
- 12 de agosto de 2023
- Número de páginas
- 4
- Escrito en
- 2023/2024
- Tipo
- Examen
- Contiene
- Preguntas y respuestas
Temas
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steam boiler operation
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