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.Management Sciences
A. improves wear resistance, cutting ability and toughness
B. refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties
C. improves cutting ability and reduces hardenability
D. gives ductility, toughness, tensile strength and anticorrosion properties
E. raises its melting point
Related Mcqs:
- Sulphur in pig iron tends to make it___________________?
- A. hard’ B. soft C. ductile D. tough E. malleable...
- Which is false statement about case hardening. Case hardening is done by_______________?
- A. electroplating B. cyaniding C. induction hardening D. nitriding E. flame hardening...
- Pig iron is the name given to________________?
- A. raw material for blast furnace B. product of blast furnace made by reduction of iron ore C. iron containing huge quantities of carbon D. iron in molten form in the ladles E. iron scrap...
- Taps, dies and drills contain carbon________________?
- A. below 0.5% B. below 1% C. above 1% D. above 2.2% E. nil...
- If a refractory contains high content of silicon, it means refractory is__________________?
- A. acidic B. basic C. neutral D. brittle E. none of the above...
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