Manufacturing And Production Technology Two 1 mm thick steel sheets are to be spot welded at a current of 5000 A. Assuming effective resistance to be 200 μm and current flow time of 0.2 second, heat generated during the process will be 1000 Joule 1 Joule 5 Joule 0.2 Joule 1000 Joule 1 Joule 5 Joule 0.2 Joule ANSWER DOWNLOAD EXAMIANS APP
Manufacturing And Production Technology Misrun is a casting defect which occurs due to Absorption of gases by the liquid metal Insufficient fluidity of the molten metal Very high pouring temperature of the metal Improper alignment of the mould flasks Absorption of gases by the liquid metal Insufficient fluidity of the molten metal Very high pouring temperature of the metal Improper alignment of the mould flasks ANSWER DOWNLOAD EXAMIANS APP
Manufacturing And Production Technology Small nose radius Decreases tool life Produces chipping and decreases tool life Increases tool life Results in excessive stress concentration and greater heat generation Decreases tool life Produces chipping and decreases tool life Increases tool life Results in excessive stress concentration and greater heat generation ANSWER DOWNLOAD EXAMIANS APP
Manufacturing And Production Technology A type of welding flows, which is the result of a perfect proportion and mixture of acetylene and oxygen and is used for fusion welding of steel and cast iron, is Oxy-acetylene flame Neutral flame Oxidizing flame Carburizing flame Oxy-acetylene flame Neutral flame Oxidizing flame Carburizing flame ANSWER DOWNLOAD EXAMIANS APP
Manufacturing And Production Technology In ultrasonic machining, the metal is removed by Maintaining an electrolyte between the work and tool in a very small gap between the two Using abrasive slurry between the tool and work Erosion caused by rapidly recurring spark discharges between the tool and work Direct contact of tool with the work Maintaining an electrolyte between the work and tool in a very small gap between the two Using abrasive slurry between the tool and work Erosion caused by rapidly recurring spark discharges between the tool and work Direct contact of tool with the work ANSWER DOWNLOAD EXAMIANS APP
Manufacturing And Production Technology The actual feed in centerless grinders is given by (where d = Dia. of regulating wheel, n = Revolutions per minute, and α = Angle of inclination of wheel) πdn πd πdn cosα πdn sinα πdn πd πdn cosα πdn sinα ANSWER DOWNLOAD EXAMIANS APP
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