1

GATE PI 2003

MCQ (Single Correct Answer)

+2

-0.6

Which of the following process can be used for welding of Aluminium alloys

$$P.$$ Submerged arc welding

$$Q.$$ Gas metal arc welding

$$R.$$ Electroslag welding

$$S.$$ Gas tungsten arc welding

$$P.$$ Submerged arc welding

$$Q.$$ Gas metal arc welding

$$R.$$ Electroslag welding

$$S.$$ Gas tungsten arc welding

2

GATE PI 2003

MCQ (Single Correct Answer)

+2

-0.6

3

GATE PI 2003

MCQ (Single Correct Answer)

+2

-0.6

Match List - I (welding defects) with List - II (causes) and select the correct answer using the codes given below the lists

4

GATE PI 2003

MCQ (Single Correct Answer)

+5

-1.5

A weld is made using $$MIG$$ welding process with the following welding parameters: Current: $$200A;$$ Voltage: $$25V;$$ Welding speed: $$18$$ $$cm/min;$$ wire diameter: $$1.2$$ $$mm;$$ Wire feed rate: $$4$$ $$m/min;$$ Thermal efficiency of the process: $$65\% $$

The heat input per unit length of the weld in $$kJ/cm$$ is:

Paper analysis

Total Questions

Casting

4

Joining of Materials

9

Machine Tools and Machining

13

Metal Forming

8

Metrology

1

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