A. Cutting ability
B. Corrosion resistance
C. Tensile strength
D. None of these
Presence of cobalt in steel improves its____________________? Read More »
Materials and Construction A. 5
B. 100
C. 250
D. 500
A. Hardness
B. Strength
C. Corrosion resistance
D. Susceptibility to changes in its properties by heat treatment
Wrought iron is having very high ________________? Read More »
Materials and Construction A. Fireclay
B. Silica
C. Lead
D. High alumina & high magnesia
Rotary kilns in cement industry are lined with _____________bricks? Read More »
Materials and Construction A. Normalising
B. Stress relieving
C. Tempering
D. Solution annealing
Post weld heat treatment is done by____________________? Read More »
Materials and Construction A. 500
B. 750
C. 900
D. 1100
High speed steel tools retain their hardness upto a temperature of _____________ °C? Read More »
Materials and Construction A. Converted to a fine powder
B. Reduced
C. Oxidised
D. None of these
When iron is rusted, it is__________________? Read More »
Materials and Construction A. Glass
B. Nickel
C. Neoprene
D. Either B. or C.
Caustic soda is transported in _____________ lined containers ? Read More »
Materials and Construction A. Boron
B. Antimony
C. Gallium
D. None of these
_______________ is a donor impurity for semi-conductors ? Read More »
Materials and Construction A. Ultimate
B. Yield point
C. Proof
D. None of these
