Final answer:
The 'B' mark or star related to oversized bends seems unrelated to the information provided, which describes B-class stars in astronomy and mechanical stress in connectors. Therefore, the initial statement is likely false.
Step-by-step explanation:
The statement regarding the "B" mark or star being used in making "Big" (or oversized) bends appears to be taken out of context and may not refer to a commonly standardized marking or designation in physics or any related disciplines. Instead, the descriptions provided seem to refer to two distinct concepts: astronomical classifications of stars and mechanical stress in bent connectors.
In astronomy, a B0 star would be the hottest within the spectral class B, while a B9 star would be the coolest, bordering the A-class stars. This classification system is not directly related to the process of making bends in any material.
In terms of mechanical engineering, the angle of a bent connector and the weight of the connector are relevant when considering how much it will sag and the tension (T) that can be generated. As the angle approaches zero, the tension can become very large, leading to a potential failure. However, this does not explicitly link to a "B" mark or star for oversized bends. Therefore, without additional context, the initial statement appears to be false.