Which of the listed actions should be carried out with the superheater vent valve during the time steam is being raised in a boiler?

Question

Accepted Answer

The valve may be partially throttled as the pressure increases until the boiler is on the line at which time it is closed.

Answer

The valve must be wide open all the time until the boiler is on the line.

Answer

The valve may be closed when all air is vented.

Answer

The valve need only be open if the superheater temperature approaches 850°F.

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