Answer :
Final answer:
The question about the purpose of deflector sheaves of the E-28 contains a discrepancy with the provided context, which focuses on electrical transmission efficiencies rather than mechanical cable guidance. Deflector sheaves generally relate to mechanical systems and are used for guiding cables, contrasting with the electrical nature of the question's context. Therefore option a) To guide the cable onto the sheave
Explanation:
The question asks: What is the purpose of the deflector sheaves of the E-28? Given the choices provided, none explicitly align with the standard objectives of deflector sheaves in engineering contexts, such as guiding cables or managing tension. However, analyzing the context provided—related to energy transmission and efficiency—it seems there might be a confusion in the question's premise. Deflector sheaves are typically discussed in mechanical systems for purposes like guiding cables or ropes. In scenarios involving electrical energy, such as the E-28 device, the concern would more likely be about electrical properties like current and resistance, not mechanical guidance like cable sheaves. Therefore, this question seems to be misaligned with the provided reference information, which discusses reducing energy loss and altering resistance during transmission, highlighting a potential mix-up in the question's construction. For electrical systems, reducing energy loss during transmission and reducing resistance are critical for enhancing efficiency and performance, but these goals don't directly relate to the mechanical function of deflector sheaves.