Hvac 108 Exam Questions With 100% Correct Answers
The primary control starts burner operation in response to a signal from the_____. - ANSWER-room thermostat When replacing an oil burner nozzle, always use a(n)_____. - ANSWER-nozzle wrench When doing a smoke spot test on a heavy boiler, an acceptable smoke spot number is_____. - ANSWER-two When reviewing the results of a combustion efficiency test for a furnace with a flame retention burner, the oxygen level should be _____. - ANSWER-3 to 5 percent In the presence of a burner flame, the resistance of the cad cell should be_____. - ANSWER-300 to 1,000 ohms Which of the following problems is not caused by a faulty nozzle? - ANSWER-Burner short cycling Which of the following problems does not cause odors around an oil burner? - ANSWER-A lined chimney The purpose of an electronic time delay used with an oil burner primary control is to _____. - ANSWER-allow the burner motor time to establish a draft
Escuela, estudio y materia
- Institución
- Hvac 108
- Grado
- Hvac 108
Información del documento
- Subido en
- 5 de junio de 2024
- Número de páginas
- 1
- Escrito en
- 2023/2024
- Tipo
- Examen
- Contiene
- Preguntas y respuestas
Temas
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hvac 108 exam questions with 100 correct answers
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