Every application for a plumber's license of any type shall be in writing, and on such form as the Plumbers Examining Board prescribes. The application shall set forth the name, citizenship, residence, place of business or occupation of the applicant, and length of time he has been engaged in the business or trade of plumbing, together with a stipulation that, if granted a license, he will comply with all laws, ordinances, resolutions and public regulations of competent authority relating to plumbing, sanitation and allied work.