Engineering Materials Taps dies and drills contain carbon Below 0.5% Above 1% Above 2.2% Below 1% Below 0.5% Above 1% Above 2.2% Below 1% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Wrought iron All of these Can be easily forged or welded Is a ductile material Cannot stand sudden and excessive shocks All of these Can be easily forged or welded Is a ductile material Cannot stand sudden and excessive shocks ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Cyaniding is the process of Dipping steel in cyanide bath Adding carbon and nitrogen by heat treatment of steel to increase its surface hardness Obtaining cyanide salts Reacting steel surface with cyanide salts Dipping steel in cyanide bath Adding carbon and nitrogen by heat treatment of steel to increase its surface hardness Obtaining cyanide salts Reacting steel surface with cyanide salts ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Steel contains 50% or more iron Elements like phosphorus, sulphur and silicon in varying quantities Alloying elements like chromium, tungsten nickel and copper 80% or more iron 50% or more iron Elements like phosphorus, sulphur and silicon in varying quantities Alloying elements like chromium, tungsten nickel and copper 80% or more iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When steel containing less than 0.8% carbon is cooled slowly from temperatures above or within the critical range, it consists of Ferrite and pearlite Pearlite and cementite Mainly ferrite Mainly pearlite Ferrite and pearlite Pearlite and cementite Mainly ferrite Mainly pearlite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In a hardening process, the hypo-eutectoid steel is Heated from 30°C to 50°C above the upper critical temperature and then cooled in still air Heated from 30°C to 50°C above the upper critical temperature and then cooled suddenly in a suitable cooling medium Heated below or closes to the lower critical temperature and then cooled slowly Heated from 30°C to 50°C above the upper critical temperature and then cooled slowly in the furnace Heated from 30°C to 50°C above the upper critical temperature and then cooled in still air Heated from 30°C to 50°C above the upper critical temperature and then cooled suddenly in a suitable cooling medium Heated below or closes to the lower critical temperature and then cooled slowly Heated from 30°C to 50°C above the upper critical temperature and then cooled slowly in the furnace ANSWER DOWNLOAD EXAMIANS APP
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