Final answer:
The question addresses the licensing requirements for plumbers, under the jurisdiction of law, highlighting that a license is issued only after passing an examination set by a government agency.
Step-by-step explanation:
The question refers to the licensing requirements for plumbers, which would fall under the category of law and possibly professional regulations within that field. Licensing for trades such as plumbing is typically managed by state or local government agencies or boards. These entities set the requirements for obtaining a license, which often include a combination of education, experience, and the successful completion of an exam.
The examination ensures that the licensee has the necessary knowledge and skills to perform plumbing work in accordance with building codes and safety standards. Therefore, a master or journeyman plumber's license is issued only after an individual has successfully passed the requisite examination, reflecting the individual's proficiency in the trade. The passage states that no such license can be issued without successfully passing an examination as prescribed by a certain authority.