On the day of hearing, the court shall hear the parties and appoint 3 disinterested persons commissioners, herein called court commissioners, whose duty it shall be to determine the necessity of such proposed road and the necessity for taking each parcel of land described in the petition therefor, and if they shall decide that it is necessary, then to appraise the damages to be paid as compensation for the taking of each such parcel therefor. Said commissioners shall not be residents of the townships in which the land sought to be taken is situated, nor of any township adjacent thereto. The court commissioners shall be sworn faithfully to discharge their duty. The courts shall fix the time and place for the first meeting of such court commissioners, and require their attendance; it may also authorize the court commissioners to adjourn their meeting from time to time not later than to a day to be named, and shall fix the time for filing the report of such court commissioners.