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55. The pressure of acetylene gas for gas cutting a 10 mm M.S. plate is
A) 0.6 kgf/cm? B) 0.15 kgf/cm?
C) 1.0 kgf/cm? 0) 1.5 kgf/cm?
56. Identify the welding machine which is used to avoid arc blow.
A) Rectifier B) Generator
C) Transformer D) Engine driven set
57. The angle formed between the line of the weld root and the horizontal reference plate is
A) Weld slope B) Face of weld
C) Weld rotation D) Welding position
58. The imag....
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