In which of the following cases, consideration of creep is important

A. Flywheel of steam engine

B. Cast iron pipes

C. Cycle chains

D. Gas turbine blades

Answer: Option D

Solution(By Examveda Team)

Gas turbine blade is made up of exotic materials superalloys to withstand in the difficult environment inside the gas turbine.
As a consequence of operating the gas turbine at high temperature and high stresses, the turbine blades are subjected to certain deformation (creep).