Materials and Construction Chilled iron castings are Highly wear resistant Soft on surface Easily machinable None of these Highly wear resistant Soft on surface Easily machinable None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which one occupies the lowermost position in the electromotive series of metals? Zinc Noble metals (Ag, Pt, Au) Alkali metals (K, Na, Li) Aluminium Zinc Noble metals (Ag, Pt, Au) Alkali metals (K, Na, Li) Aluminium 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 Induction motors Generators and small motors Armature of small motors/generators High frequency transformers Induction motors Generators and small motors Armature of small motors/generators ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Telfon (PTFE) is corroded by Hydrochloric acid (10%) Sulphuric acid Hydrochloric acid (95%) None of these Hydrochloric acid (10%) Sulphuric acid Hydrochloric acid (95%) None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Wrought iron is having very high Strength Susceptibility to changes in its properties by heat treatment Corrosion resistance Hardness Strength Susceptibility to changes in its properties by heat treatment Corrosion resistance Hardness ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Slow plastic deformation of metals under a constant stress is termed as __________ failure. Endurance Fatigue None of these Creep Endurance Fatigue None of these Creep ANSWER DOWNLOAD EXAMIANS APP
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