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EXAM REVIEW
NCCCO Examination
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Ihuman Case Study
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NATE Gas Heating Exam Questions
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Question Number 28
The technician is checking the operation of an induced draft furnace with an atmospheric burner and a direct ignition system. On a call for heat the sequence is what?
~Vent blower comes on~Igniter glows~Main burner does not light~The next check would be the gas supply and/or gas valve
✔ Correct Answer:
~Vent blower comes on~Igniter glows~Main burner does not light~The next check would be the gas supply and/or gas valve
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