Which certificate qualifies an individual to supervise in any power plant as a chief steam engineer?

To supervise in any power plant as a chief steam engineer, the required certification is the First Class Engineer's Certificate of Competency. This certificate indicates that an individual possesses the highest level of knowledge and expertise in the operation, maintenance, and management of steam-powered systems, including large boilers, turbines, and associated equipment.

Obtaining this certification involves thorough training and testing on various aspects of power engineering, including safety protocols, regulatory compliance, and technical operations. The First Class Engineer's Certificate ensures that the individual is well-qualified to take on leadership roles, oversee personnel, and ensure the efficient functioning of the power plant.

While the other certifications mentioned are relevant to specific areas or levels of responsibility within the engineering field, they do not provide the comprehensive authority or qualifications needed for the chief steam engineer position. The Third Class Engineer's Certificate, for example, allows for some operational responsibilities but does not include the supervisory privileges that come with the First Class certification, making it unsuitable for high-level management roles in power plants.