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7 Cards in this Set
- Front
- Back
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1. If Makeup Screen House (MUSH) battery room exhaust fan (0VH02CA) tripped due to an overload condition, what would be the status of the room ventilation?
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Answer: The battery room exhaust fan would auto start to prevent buildup of hydrogen in the room.
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2. List three conditions that would prevent ESW room supply from starting.
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Answer: Low room temperature, fan motor control power fuses are "blown," or fan motor thermal overloads are tripped.
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1. Area Temperature Monitoring ensures ESW Pump House temperature is maintained =119(F. Why is this necessary?
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Answer: Ensures safety-related equipment is not subjected to conditions greater than their environmental qualification temperatures, to prevent degradation and loss of operability.
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1. What is the main function of the Site Ventilation Systems?
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Ans.: To maintain a suitable atmosphere for personnel and equipment.
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2. What auto starts the ESW Pump Room supply Fan?
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Ans.: Start of the associated ESW pump.
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3. What will prevent the ESW Pump Room Supply Fan from starting?
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Ans.: Low room temperature Fan motor control power fuses are "blown" Fan motor thermal overloads are tripped.
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4. It is wintertime and a SI has occurred. Is there anything that must be done concerning the ESW pump room ventilation?
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Ans.: Yes. The heaters are load shed in a SI and not reloaded. Thus operator actions must reinstate heating.
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