It shall be competent to the court, on the petition of the trustees under any trust, to grant authority to the trustees to do any of the acts mentioned in the section of this Act relating to general powers of trustees, notwithstanding that such act is at variance with the terms or purposes of the trust, on being satisfied that such act is in all the circumstances expedient for the execution of the trust.

In this section the expression “trust” shall not include any trust constituted by private or local Act of Parliament, and the expression “trustees” shall be construed accordingly.