Materials and Construction Ferric stainless steels compared to austenitic stainless steels Have lower corrosion resistance Are less ductile and hence less suitable for cold pressing All of these Are harder to fabricate Have lower corrosion resistance Are less ductile and hence less suitable for cold pressing All of these Are harder to fabricate 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%)? Induction motors High frequency transformers Armature of small motors/generators Generators and small motors Induction motors High frequency transformers Armature of small motors/generators Generators and small motors ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The high expansion metal normally used in the bimetallic thermometer is __________ temperature measurement. Aluminium for all Both A & B Brass for low Nickel alloys for high Aluminium for all Both A & B Brass for low Nickel alloys for high ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following crystal structures characterises the ferritic stainless steel? None of these Face centred cubic Body centred cubic Simple hexagonal None of these Face centred cubic Body centred cubic Simple hexagonal ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Coke oven walls are lined with __________ bricks. Silica Tar-dolomite Fire clay Low thermal conductivity Silica Tar-dolomite Fire clay Low thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Bog iron used for the adsorption of H?S from coke oven gas is None of these An intimate mixture of saw dust and iron dust (i.e. moist ferric hydroxide) Carbon free iron Iron impregnated with resin (usually bakelite) None of these An intimate mixture of saw dust and iron dust (i.e. moist ferric hydroxide) Carbon free iron Iron impregnated with resin (usually bakelite) ANSWER DOWNLOAD EXAMIANS APP
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