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 0.2 Joule 1000 Joule 5 Joule 1 Joule 0.2 Joule 1000 Joule 5 Joule 1 Joule ANSWER DOWNLOAD EXAMIANS APP
Manufacturing And Production Technology The negative rake is usually provided on High speed steel tools All of these Cemented carbide tools High carbon steel tools High speed steel tools All of these Cemented carbide tools High carbon steel tools ANSWER DOWNLOAD EXAMIANS APP
Manufacturing And Production Technology Tool life is measured by the All of the listed here Number of pieces machined between tool sharpenings Time the tool is in contact with the job Volume of material removed between tool sharpenings All of the listed here Number of pieces machined between tool sharpenings Time the tool is in contact with the job Volume of material removed between tool sharpenings ANSWER DOWNLOAD EXAMIANS APP
Manufacturing And Production Technology Work speed of circular electrode of 220 mm diameter for carrying out seam welding at 4 welds per cm on 1.6 mm thick mild steel tube. Welding cycle consists of 3 cycles ‘on’ and 2 cycles ‘off’ Power supply is at 50 Hz. Calculate R.P.M. and energy requirement of the above circular electrodes assuming effective resistance between electrodes as 100 ohm. 6.8 rpm, 6 joules 22 rpm, 600 joules 5.03 rpm, 600 joules 2.17 rpm, 600 joules 6.8 rpm, 6 joules 22 rpm, 600 joules 5.03 rpm, 600 joules 2.17 rpm, 600 joules ANSWER DOWNLOAD EXAMIANS APP
Manufacturing And Production Technology Which of the following statement is correct in regard to centreless grinding? The workpiece is supported throughout its entire length as grinding takes place It requires no holding device for the work All of these It is a continuous process and adopted for production work The workpiece is supported throughout its entire length as grinding takes place It requires no holding device for the work All of these It is a continuous process and adopted for production work ANSWER DOWNLOAD EXAMIANS APP
Manufacturing And Production Technology In up-cut milling the work piece is fed At the right angle to the cutter In the direction of the cutter Against the rotating cutter At the right angle to the cutter In the direction of the cutter Against the rotating cutter ANSWER DOWNLOAD EXAMIANS APP
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