Double interlock systems are limited to 500 gallons unless water can be delivered to the inspector's test connection within 60 seconds. How many gallons is the limit?

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Multiple Choice

Double interlock systems are limited to 500 gallons unless water can be delivered to the inspector's test connection within 60 seconds. How many gallons is the limit?

Explanation:
Double interlock systems have a defined limit on the amount of water they’re allowed to hold to prevent large, unintended releases. The rule given states a default limit of 500 gallons, with an exception if water can be delivered to the inspector’s test connection within 60 seconds. In this question, the condition about delivering water within 60 seconds isn’t stated as being met, so the standard limit applies. That makes the limit 500 gallons. The other numbers would only come into play if the 60-second delivery requirement could be demonstrated.

Double interlock systems have a defined limit on the amount of water they’re allowed to hold to prevent large, unintended releases. The rule given states a default limit of 500 gallons, with an exception if water can be delivered to the inspector’s test connection within 60 seconds. In this question, the condition about delivering water within 60 seconds isn’t stated as being met, so the standard limit applies. That makes the limit 500 gallons. The other numbers would only come into play if the 60-second delivery requirement could be demonstrated.

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