Workshop Technology During hot working of metals All of the listed here Porosity of the metal is largely eliminated Mechanical properties are improved due to refinement of grains Grain structure of the metal is refined All of the listed here Porosity of the metal is largely eliminated Mechanical properties are improved due to refinement of grains Grain structure of the metal is refined ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology A two high rolling mill consists of two rolls which rotate At different speeds and in the same direction At the same speed but in opposite direction At different speeds and in the opposite direction At the same speed and in the same direction At different speeds and in the same direction At the same speed but in opposite direction At different speeds and in the opposite direction At the same speed and in the same direction ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The welding process used to join the ends of two pipes of uniform cross-section, is Projection welding Spot welding Seam welding Upset butt welding Projection welding Spot welding Seam welding Upset butt welding ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology the most preferred process for casting gas turbine blades is Sand casting Shell moulding Investment moulding Die casting Sand casting Shell moulding Investment moulding Die casting ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology In welding magnesium with TIG arc welding, direct current with ________ is used. Both (A) and (B) Reversed polarity None of these Straight polarity Both (A) and (B) Reversed polarity None of these Straight polarity ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The temperature at which the new grains are formed in the metal is called Lower critical temperature Recrystallisation temperature Eutectic temperature Upper critical temperature Lower critical temperature Recrystallisation temperature Eutectic temperature Upper critical temperature ANSWER DOWNLOAD EXAMIANS APP
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