Question

rotor blades are often made of glass fibre reinforced plastic

Answer 1

It should be true.But still go through lecture once.

Answer 2

The answer is true.

Rotor blades are often made of glass fibre reinforced plastic (GRP). This is especially true about the rotor blades used in large wind turbines. While GRP is the primary choice of material, aramid or carbon fiber is another choice for reinforcing material. However, it is not an economic choice for huge wind turbines.