(a) The Mayor shall preside at all meetings of Council. During the absence or disability of the Mayor, the Commissioner of Accounts and Finances shall act as Mayor Pro Tem and as Presiding Officer of Council. Where the absence or disability of the Mayor is to be of very short duration and no individual is required to be granted the powers of the Mayor, Council shall elect one of its number as temporary Chairman. The Mayor Pro Tem shall have all the powers and duties of the Mayor; the temporary Chairman shall only have such powers and duties as accrue to a Presiding Officer.
(b) The Mayor and each Commissioner shall have the right to vote on all questions coming before Council. Upon every vote, the "yeas" and "nays" of the members shall be called and recorded in the minutes.