Materials and Construction High speed steel tools retain their hardness upto a temperature of __________ °C. 750 1100 500 900 750 1100 500 900 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The impure iron (pig iron) that is tapped out from blast furnace contains about __________ percent carbon. 2 4 8 0.2 2 4 8 0.2 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The loss of strength in compression which occurs, when there is a gain of strength in tension due to over loading is called Relaxation Bauschinger effect Hooke's effect Hysterisis Relaxation Bauschinger effect Hooke's effect Hysterisis ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is universally employed as the low expansion metal in the bimetallic thermometer, which is an iron-nickel alloy containing 36% nickel and has very low co-efficient of expansion (l/20th of ordinary metals)? Chromel Alumel Constantan Invar Chromel Alumel Constantan Invar ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The metals occuring at the lower most position in the electromotive series Are heat insulators Are very brittle Resist corrosion very strongly Do not resist corrosion Are heat insulators Are very brittle Resist corrosion very strongly Do not resist corrosion ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Trough of an apron conveyor is made of Either B or C Metal Lead lined concrete vessel Wood Either B or C Metal Lead lined concrete vessel Wood ANSWER DOWNLOAD EXAMIANS APP
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