A. Topaz
B. Carborundum
C. Corundum
D. Calcite
The hardest material just prior to diamond in Mhos scale is_________________? Read More »
Materials and Construction A. Pig iron
B. Steel
C. Ferroalloys
D. All A., B. & C.
Carbon is present in the combined form (carbide) in case of______________________? Read More »
Materials and Construction A. Carbon
B. Iron
C. Phosphorous
D. None of these
Polymorphism is not exhibited by______________________? Read More »
Materials and Construction A. Nickel, tin and copper
B. Copper, tin and zinc
C. Copper, phosphorus and nickel
D. Manganese, phosphorus and nickel
Gun metal is an alloy of_________________________? Read More »
Materials and Construction A. An element, which exhibits the properties of both metal & non metal
B. Highly electronegative in nature
C. An alloy
D. All A., B. & C.
Metalloid is_______________________? Read More »
Materials and Construction A. Spraying
B. Powder metallurgy
C. Hot dipg
D. Electro-deposition
Tin coating on metals is not done by_____________________? Read More »
Materials and Construction A. White cast
B. Grey cast
C. Wrought
D. None of these
_____________ iron is produced, when molten pig iron is chilled suddenly? Read More »
Materials and Construction A. 0.02
B. 0.2
C. 0.35
D. 0.5
A. Silver
B. Iron
C. Tin
D. Copper
Which of the following is the most prone to atmospheric corrosion ? Read More »
Materials and Construction A. Ductility
B. Fluidity & castability
C. Strength
D. Malleability
Cast iron compared to steel is better in__________________? Read More »
Materials and Construction