64. In order for a steam trap to be effective in accomplishing its intended purpose, what statement is true regarding its installation?

The steam trap should never be painted, but should be covered with insulation.
The steam trap should be painted to reduce corrosion and should be covered with insulation.
The steam trap should be painted to reduce corrosion but should never be covered with insulation.
The steam trap should never be painted and should never be covered with insulation.

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