57. Electrode gets consumed in the following, welding process
A.Gas
B.Resistance
C.Thermit
D.Arc
58. Two stainless steel foils of 0.1 mm thickness are to be joined. Which of the following processes would be best suited
A.Gas Welding
B.MIG welding
C.Electroslag welding
D.Plasma arc welding
59. Magnetic arc blow is
A.A recent welding technique
B.Phenomenon of occurrence of splatter because of magnetic fields created in d.c. arc welding
C.Occurs when welding near equator
D.Of importance during striking of arc
60. Arc length in arc welding should be equal to
A.Half the diameter of electrode rod
B.Rod diameter
C.Twice the rod diameter
D.2.5 times the rod diameter
61. The amperage to be used in arc welding is dependent upon
A.Work thickness
B.Electrode rod thickness
C.Other considerations
D.None of the above
62. In coated electrode in arc welding
A.Both rod and coating melt simultaneously
B.Coating melts first and then rod melts
C.Which melts first depends on polarity used
D.Rod melts first and then coating melts
63. Two M.S. plates, 20 cm thick for boiler drum are to be butt welded. Which of the following processes would be best suited
A.Submerged arc welding
B.Electroslag welding
C.Electric resistance welding
D.TIG/MIG welding
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