Materials and Construction German silver is an alloy of copper, nickel and Tin Zinc Lead Silver Tin Zinc Lead Silver ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Straight silicon steel (containing Si from 0.5 to 5%) because of their low hysterisis loss and high magnetic permeability are used for electrical appliances. Which of the following electrical appliances made of silicon steel contains maximum percentage of silicon (about 4%)? High frequency transformers Armature of small motors/generators Induction motors Generators and small motors High frequency transformers Armature of small motors/generators Induction motors Generators and small motors ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is not used as the ceramic material in 'cermets'? Nitrides Oxides Silicides Carbides Nitrides Oxides Silicides Carbides ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Hastelloy C is a good material of construction in chemical process industry, since it is Highly corrosion resistant and is readily fabricated Light and resists attack by acids Relatively inexpensive although it can be fabricated with some difficulty Corrosion resistant to most alkalis, particularly because of its coper content Highly corrosion resistant and is readily fabricated Light and resists attack by acids Relatively inexpensive although it can be fabricated with some difficulty Corrosion resistant to most alkalis, particularly because of its coper content ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Monel alloy is Used for making steam valves and turbine blades as it resists steam attack at high temperature Not used in cast and wrought forms The costliest of all the alloys of nickel Not suitable for making kitchen utensils Used for making steam valves and turbine blades as it resists steam attack at high temperature Not used in cast and wrought forms The costliest of all the alloys of nickel Not suitable for making kitchen utensils ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of nitrogen in steel Makes it brittle Increases its hardness Increases its strength Is desirable Makes it brittle Increases its hardness Increases its strength Is desirable ANSWER DOWNLOAD EXAMIANS APP
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