Interpretations. Upon the appeal from a decision by an administrative official, the Zoning Board of Appeals shall decide any question involving interpretation of any provision of this chapter, including any determination of the exact location of any district boundary if there is uncertainty with respect thereto. The Board may reverse or affirm, wholly or in part, or may modify the order, requirement, decision, interpretation or determination appealed from and shall make such order, requirement, decision, interpretation or determination as in its opinion ought to have been made in the matter by the administrative official. In making such determination, the Board shall have all of the powers of the administrative official from whose order, requirement, decision, interpretation or determination the appeal is taken.