NV C-1A Boilers Practice Questions - Nevada C-1A Boilers Contractor Examination Exam

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A boiler room 16 ft × 12 ft × 8 ft contains a 100,000 Btu/h Category I gas boiler and a 40,000 Btu/h atmospheric water heater. Using the indoor standard method, what additional combustion-air action is required?

None. Room volume is 1,536 ft³ and only 1,400 ft³ is required. None. Direct-vent rules automatically apply to atmospheric appliances. Provide outdoor combustion air (or indoor openings to extra volume) because 7,000 ft³ is required and only 1,536 ft³ is available. Seal the room airtight so infiltration cannot dilute the flame.

Correct Answer:

Provide outdoor combustion air (or indoor openings to extra volume) because 7,000 ft³ is required and only 1,536 ft³ is available.

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