83) How much gas flow rate is required to weld a butt joint with 0.8 mm dia MS filler rod of wire feed rate 3 - 4 m/min at 18 to 20 volts?

84) What should be the initial angle of two plates in a T joint if the final angle between them is 90 Degree after completion of welding?

85) What is percentage of deposition efficiency in FCAW process?

86) Which gas/mixture is likely to reduce the spatter loss in FCAW?

87) Which metal is welded with self shielded type FCAW?