During normalizing process of steel, the specimen is heated
A. Between the upper and lower critical temperature and cooled in still air.
B. Above the upper critical temperature and cooled in furnace.
C. Above the upper critical temperature and cooled in still air.
D. Between the upper and lower critical temperature and cooled in furnace.
Answer: Option C
This Question Belongs to Mechanical Engineering >> Manufacturing And Production Technology
Join The Discussion
Comments ( 1 )
The carbide tools operating at very low cutting speeds (below 30 m/min)
A. Reduces tool life
B. Increases tool life
C. Have no effect on tool life
D. Spoils the work piece
The type of reamer used for reaming operation in a blind hole, is
A. Straight fluted reamer
B. Left hand spiral fluted reamer
C. Right hand spiral fluted reamer
D. Any one of these
High speed steel tools retain their hardness up to a temperature of
A. 250°C
B. 350°C
C. 500°C
D. 900°C
. During normalizing process of steel, the specimen is heated;
1. Between the upper and lower critical temperature and cooled in still air.
2. Above the upper critical temperature and cooled in furnace
3. Above the upper critical temperature and cooled in still air.
4. Between the upper and lower critical temperature and cooled in furnace.