A. low carbon steel
B. medium carbon steel
C. high carbon steel
D. alloy steel
E. special steel
Related Mcqs:
- The metallic structure of mild steel is_________________?
A. body centred cubic
B. face centred cubic
C. hexagonal close packed
D. cubic structure
E. orthorhombic crystal - Eutectoid steel contains following percentage of carbon_______________?
A. 0.02%
B. 0.3%
C. 0.63%
D. 0.8%
E. 1.2%. - Cold rolled steel sheets contain carbon of the following order___________________?
A. 0.1%
B. 0.2%
C. 0.4%
D. 0.6%
E. 0.8% - Structural steel contains following principal alloying elements__________________?
A. nickel, chromium and manganese
B. tungsten, molybdenum and phosphorous
C. lead, tin, aluminium
D. zinc, sulphur, and chromium
E. none of the above - Depth of hardness of steel is increased by addition of_________________?
A. nickel
B. chromium
C. tungsten
D. vanadium
E. ell of the above - Corrosion resistance of steel is increased by addition of________________?
A. chromium and nickel
B. sulphur, phosphorus, lead
C. vanadium, aluminium
D. tungsten, molybdenum, vanadium, chromium
E. zinc - A reversible change in the atomic structure of the steel with a corresponding change in the properties is known as_________________?
A. allotropic change
B. recrystallisation
C. heat treatment
D. precipitation
E. austempering - Tungsten in high speed steel provides________________?
A. hot hardness
B. toughness
C. wear resistance
D. sharp cutting edge
E. cold hardness - Tensile strength of steel can be safely in-creased by________________?
A. adding carbon up to 2.8%
B. adding carbon up to 6.3%
C. adding carbon up to 0.83%
D. adding small quantities of copper
E. adding copper and carbon - The hardness of steel primarily depends on _____________________?
A. %age of carbon
B. %age of alloying elements
C. heat treatment employed
D. method of manufacture
E. shape of carbides and their distribution in iron
