Considering power transmission through V-belts, which statement is NOT correct?

The statement that V-belts are used at the low-speed end is not accurate. V-belts are specifically designed for various applications, including high-speed operations. They are known for their ability to transmit power efficiently at high speeds due to their design, which allows for better grip and less slippage compared to flat belts. This makes them suitable for driving machinery and equipment that operate at higher RPMs.

In contrast, options that discuss V-belts being used at the high-speed end, having standard lengths, and having standardized angles are indeed correct. These features contribute to the versatility and reliability of V-belts in different mechanical setups. The standardization in dimensions and angles facilitates compatibility across different systems, ensuring that V-belts can be effectively utilized in a range of applications, from automotive engines to industrial machinery.