Materials and Construction __________ is a donor impurity for semi-conductors. Gallium None of these Boron Antimony Gallium None of these Boron Antimony ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Aluminium alloy is one of the most suitable materials of construction for aircrafts mainly due to its High strength and corrosion & oxidation-resistance at elevated temperature Its ability to be cast, rolled, forged & stamped Low temperature strength properties High strength to weight ratio High strength and corrosion & oxidation-resistance at elevated temperature Its ability to be cast, rolled, forged & stamped Low temperature strength properties High strength to weight ratio ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ is not a case hardening process. Annealing Cyaniding Carburising Nitriding Annealing Cyaniding Carburising Nitriding ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction White cast iron as compared to grey cast iron is Very brittle All of these More durable Very hard Very brittle All of these More durable Very hard ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Addition of __________ to the steel helps in increasing the residual magnetism in steel used for making magnets. Tungsten Chromium Cobalt Nickel Tungsten Chromium Cobalt Nickel ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following materials may prove unsuitable for handling acetic acid (glacial & anhydrous) at 40°C? Silicone rubber, teflon, procelain and wood Brass, cast iron, mild steel and tin Nickel, monel, stainless steel and graphite Aluminium, copper, high silicon iron Silicone rubber, teflon, procelain and wood Brass, cast iron, mild steel and tin Nickel, monel, stainless steel and graphite Aluminium, copper, high silicon iron ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS