Engineering Materials Hardness of lower bainite (tempered martensite) is about RC 80 RC 65 RC 57 RC 48 RC 80 RC 65 RC 57 RC 48 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Recrystallization temperature can be lowered by Working at lower temperature All of these Grain refinement Purification of metal Working at lower temperature All of these Grain refinement Purification of metal ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Hematite iron ore contains iron about 0.55 0.7 0.3 0.45 0.55 0.7 0.3 0.45 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Phosphor bronze contains 2.5% phosphorous None of these 0.5% of phosphorous 1% phosphorous 2.5% phosphorous None of these 0.5% of phosphorous 1% phosphorous ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Crystal structure of a material is, generally, examined by Metallurgical microscope Optical microscope Naked eye X-ray techniques Metallurgical microscope Optical microscope Naked eye X-ray techniques ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In a hardening process, the hypo-eutectoid steel is 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 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 from 30°C to 50°C above the upper critical temperature and then cooled slowly in the furnace 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 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 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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