7-34-2108. Hearing on petition. At the time fixed for said hearing, the board shall hear all competent and relevant testimony offered in support of or in opposition to said petition and the creation of such district. Said hearing may be adjourned from time to time for the determination of said facts or hearing petitioners or objectors without additional published or posted notice, but no adjournment shall exceed 2 weeks in all from and after the date originally noticed and published for the hearing.