(a) The election officials, before entering on their duties, shall take, before some person authorized by law to administer oaths, the following oath:
(b) In case there shall be no person present at the opening of any election authorized to administer oaths, it shall be lawful for the election officials to administer the oath to each other, and the election officials shall have full power and authority to administer all oaths that may be necessary in conducting any election.