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 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 Heated from 30°C to 50°C above the upper critical temperature and then cooled in still air ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Cementite consist of 13% carbon and 87% ferrite 6.67% carbon and 93.33% iron 13% ferrite and 87% cementite 13% cementite and 87% ferrite 13% carbon and 87% ferrite 6.67% carbon and 93.33% iron 13% ferrite and 87% cementite 13% cementite and 87% ferrite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Basic solution is one which has pH value pH value has nothing to do with basic solution Equal to 7 Less than 7 Greater than 7 pH value has nothing to do with basic solution Equal to 7 Less than 7 Greater than 7 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The alloying element which increases residual magnetism and coercive magnetic force in steel for magnets is Vanadium Nickel Cobalt Chromium Vanadium Nickel Cobalt Chromium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Connecting rod is usually made of Aluminium Medium carbon steel High carbon steel Low carbon steel Aluminium Medium carbon steel High carbon steel Low carbon steel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The usual composition of a soldering alloy is Tin and copper Tin, lead and silver Tin and lead Tin, lead and small percentage of antimony Tin and copper Tin, lead and silver Tin and lead Tin, lead and small percentage of antimony ANSWER DOWNLOAD EXAMIANS APP
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