When the Board shall conclude that any bank for which a conservator has been appointed is insolvent or in imminent danger of insolvency and that it is necessary to liquidate such bank in order to protect the interests of depositors and creditors, it shall order the liquidation thereof. When liquidation shall have been so ordered such liquidation shall be under and by the conservator appointed for such bank and shall continue until the liquidation of such bank has been completed. Any such conservator shall be vested with the same powers and duties as receivers of banks under existing laws, except as in its discretion the Board shall fix or limit the liquidation expenses of such bank. The liquidation of all such banks shall be under such rules and regulations as may be prescribed by the Board and the conservator shall have the right to apply to a court of competent jurisdiction for direction and instruction on questions of law arising in the liquidation of any such bank.