58) In resisttance welding, when the current passes through the metal, the greatest resistance is

at the surface

through the metals to be welded

at the point of contact of the metal to be welded

at the point where electrode contacts the metal

Answer is:

at the point of contact of the metal to be welded

ISRO Technician-B Welder Question Paper - 2016 (Set -1) with Answer Key

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59) Which of the following material is difficult to be spot welded?

Cold rolled MS sheet

Hot rolled MS sheet

Stainless sheet

Copper

Answer is:

Copper

60) In which of the following resistance welding, a large number of welds can be carried out simultaneously

Spot welding

Projection welding

Seam welding

Percussion welding

Answer is:

Projection welding

61) The nozzle portion of the torch employed for GTAW is made of

plastic

ceramics

copper

glass

Answer is:

ceramics

62) The following welding process has greater directional stability due to passage of arc through copper orifice

Oxy-acetylene welding

Gas metal arc welding

Gas tungsten arc welding

Plasma arc welding

Answer is:

Plasma arc welding

ISRO Technician-B Welder Question Paper - 2016 (Set -1) with Answer Key

For more MCQ's Click Here

58) In resisttance welding, when the current passes through the metal, the greatest resistance is

at the point of contact of the metal to be welded

ISRO Technician-B Welder Question Paper - 2016 (Set -1) with Answer Key

Related ISRO Technician-B Welder Question Paper - 2016 (Set -1) with Answer Key

59) Which of the following material is difficult to be spot welded?

Copper

60) In which of the following resistance welding, a large number of welds can be carried out simultaneously

Projection welding

61) The nozzle portion of the torch employed for GTAW is made of

ceramics

62) The following welding process has greater directional stability due to passage of arc through copper orifice

Plasma arc welding

ISRO Technician-B Welder Question Paper - 2016 (Set -1) with Answer Key