Determination of questions by Board of Assessment

(1) All questions and claims relating to the payment of compensation under this Act and to the apportionment of such compensation shall, except as is provided in section 18 of this Act, be submitted to a Board of Assessment to be appointed in each case in accordance with section 12 of this Act. (2) A Board of Assessment shall have full power to assess, award and apportion compensation in such cases, in accordance with this Act. 13