Manufacturing And Production Technology The stroke of a shaping machine is 250 mm. It makes 30 double strokes per minute. The overall average speed of operation is 7.5 m/min 5 m/min 3.75 m/min 15 m/min 7.5 m/min 5 m/min 3.75 m/min 15 m/min 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. 2.17 rpm, 600 joules 22 rpm, 600 joules 6.8 rpm, 6 joules 5.03 rpm, 600 joules 2.17 rpm, 600 joules 22 rpm, 600 joules 6.8 rpm, 6 joules 5.03 rpm, 600 joules ANSWER DOWNLOAD EXAMIANS APP
Manufacturing And Production Technology In an interchangeable assembly, shafts of size 25.000 -0.010⁺⁰∙⁰⁴⁰ mm mate with holes of size 25.000 -0.020⁺⁰∙⁰³⁰, the maximum interference (in microns) in the assembly is 30 10 40 20 30 10 40 20 ANSWER DOWNLOAD EXAMIANS APP
Manufacturing And Production Technology The usual value of the helix angle of a drill is 30° 45° 20° 60° 30° 45° 20° 60° ANSWER DOWNLOAD EXAMIANS APP
Manufacturing And Production Technology For softer materials, the point angle of the drill is kept Equal to 118° Less than 118° More than 118° Any one of these Equal to 118° Less than 118° More than 118° Any one of these ANSWER DOWNLOAD EXAMIANS APP
Manufacturing And Production Technology Tool life is generally better when None of the listed here Hard constituents are present in the micro-structure of the tool material Grain size of the metal is large Grain size of the metal is small None of the listed here Hard constituents are present in the micro-structure of the tool material Grain size of the metal is large Grain size of the metal is small ANSWER DOWNLOAD EXAMIANS APP
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