NM CID MM-1 Practice Questions - New Mexico CID MM-1 Plumbing Examination Exam

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Fuel-oil and gasoline piping are inside MM-1 scope. At a motor-fuel dispensing facility, NFPA 30A requires listed emergency shutoff valves (shear valves) at dispensers so that:

The tank vent is isolated from the tank A collision that breaks the dispenser automatically closes the supply at the island Natural-gas appliances on the same island are shut off The sanitary building sewer is isolated from the tank field

Correct Answer:

A collision that breaks the dispenser automatically closes the supply at the island

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