During the normalizing process of steel, the specimen is heated [2012]
Above the upper critical temperature and cooled in the furnace.
Between the upper and lower critical temperature and cooled in the furnace.
Between the upper and lower critical temperature and cooled in still air.
Above the upper critical temperature and cooled in still air.
Boost your performance with adaptive practice tests
Practice every concept in the syllabus
Compare your speed and accuracy with your peers
Download the app and practice on the go