Materials and Construction Aluminium as a material of construction suffers from the disadvantage of Very high cost Scarce availability Rather low tensile strength Very low strength to weight ratio Very high cost Scarce availability Rather low tensile strength Very low strength to weight ratio ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Graphite is corroded by Hydrochloric acid Sea water None of these Sulphuric acid (10%) Hydrochloric acid Sea water None of these Sulphuric acid (10%) ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which one occupies the lowermost position in the electromotive series of metals? Noble metals (Ag, Pt, Au) Alkali metals (K, Na, Li) Aluminium Zinc Noble metals (Ag, Pt, Au) Alkali metals (K, Na, Li) Aluminium Zinc 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%)? Armature of small motors/generators Induction motors High frequency transformers Generators and small motors Armature of small motors/generators Induction motors High frequency transformers Generators and small motors ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The high expansion metal normally used in the bimetallic thermometer is __________ temperature measurement. Both A & B Brass for low Aluminium for all Nickel alloys for high Both A & B Brass for low Aluminium for all Nickel alloys for high ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Aqueous nitric acid is stored in Steel drum Cast iron vessel lined with acid-proof masonry brick Stainless steel vessel Cast iron vessel Steel drum Cast iron vessel lined with acid-proof masonry brick Stainless steel vessel Cast iron vessel ANSWER DOWNLOAD EXAMIANS APP
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