Related Questions

The system in which high tensile alloy steel bars (silica manganese steel) are used as pre-stressing tendons, is known as
A Freyssinet system
B Magnel-Blaton system
C C.C.L. standard system
D Lee-McCall system
Austenitic manganese steel used for making jaws of crushing machines contains about __________ percent manganese.
A 1.5-2
B 3.5-4.5
C 7-9
D 12-14
Presence of small quantity of sulphur in low carbon steel improves its
A Formability
B Machinability
C Weldability
D Hardenarality
Presence of cobalt in steel improves its
A Cutting ability
B Corrosion resistance
C Tensile strength
D None of these
Presence of nickel in steel improves its
A Corrosion resistance
B Cutting ability
C Wear resistance
D All of the above
Manganese in steel affects its
A Ductility
B Tensile strength
C Hardness
D None of these
Manganese in steel increases its
A Tensile strength
B Hardness
C Ductility
D Fluidity
In low carbon steels, presence of small quantities of sulphur improves
A Weldability
B Formability
C Machinability
D Hardenability
Presence of iron and manganese in water causes
A Reduction in its dissolved oxygen content
B Discoloration of bathroom fixtures
C Temporary hardness
D None of these
Growth of __________ is promoted by the presence of manganese in water.
A Files
B Algae
C Micro-organisms
D Mosquitoes

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