50. TIC welding is
A. Temperature Insulated Gas welding
B. Tungsten Inert Gas welding
C. Thermally Induced Gas welding
D. Thorium Iodine Gas welding
51. Flux used in TIC welding is
A. Ammonium chloride
B. Borax
C. Ash
D. None of these
52. MIG welding is
A. Midsteel Inert Gas welding
B. Medium Inert Gas welding
C. Maximum Inert depth Gas welding
D. Metal inert Gas Welding
53. When t is the thickness of the sheet, the tip diameter for spot welding is usually
A. 2t
B. t
C. VT
D. T
54. Which of the following is of high importance in case of induction heating?
A. Voltage
B. Current
C. Frequency
D. All of these
55. Method of heating which is likely to give leading power factor is
A. electric arc
B. induction heating
C. dielectric heating
D. resistance heating
56. The ideal method of heating plastics is
A. Oil fired furnace
B. Resistance furance heating
C. Dielectric heating
D. Coal fired furance
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