Each member of the state board of registration for professional engineers and surveyors shall receive an amount fixed pursuant to division (J) of section 124.15 of the Revised Code per diem when actually attending to the work of the board or of any of its committees and for the time spent in necessary travel; and in addition thereto, shall be reimbursed for all actual traveling, hotel, and other expenses necessarily incurred in carrying out sections 4733.01 to 4733.23 of the Revised Code.