Which descriptor would suggest an established understanding of the material by a candidate?

A descriptor indicating a "Good Understanding" reflects that a candidate has not only grasped the fundamental concepts but also comprehends the nuances of the material. This level of understanding typically involves the ability to explain ideas clearly, apply knowledge to practical scenarios, and engage critically with the subject matter. A candidate demonstrating a good understanding would likely show proficiency in problem-solving and analyzing complex situations related to building services engineering.

In comparison, "Basic Understanding" might suggest familiarity with the material but lacks depth, meaning the candidate may struggle with more complex questions. "Limited Accuracy" indicates that while there might be some grasp of the content, the candidate’s responses may often contain errors or misunderstandings. Lastly, "Superficial Knowledge" implies a minimal engagement with the material, suggesting that the candidate may know a few facts but lacks a deeper comprehension necessary to apply that knowledge effectively. Thus, "Good Understanding" clearly stands out as the descriptor denoting a robust grasp of the subject matter.