1
GATE PI 2003
MCQ (Single Correct Answer)
+2
-0.6
GATE PI 2003 Joining of Materials - Welding Question 31 English
A
$$P - 4,\,\,Q - 1,\,\,R - 3,\,\,S - 2$$
B
$$P - 3,\,\,Q - 2,\,\,R - 4,\,\,S - 3$$
C
$$P - 1,\,\,Q - 2,\,\,R - 4,\,\,S - 3$$
D
$$P - 2,\,\,Q - 4,\,\,R - 1,\,\,S - 3$$
2
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 GATE PI 2003 Joining of Materials - Welding Question 30 English
A
$$A - 4,\,\,B - 2,\,\,C - 3,\,\,D - 1$$
B
$$A - 4,\,\,B - 2,\,\,C - 1,\,\,D - 3$$
C
$$A - 2,\,\,B - 4,\,\,C - 1,\,\,D - 3$$
D
$$A - 2,\,\,B - 4,\,\,C - 3,\,\,D - 1$$
3
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:

A
$$0.18$$
B
$$0.28$$
C
$$10.83$$
D
$$16.66$$
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 area of cross section of weld bead in $$m{m^2}$$ is:

A
$$16.3$$
B
$$25.1$$
C
$$30.3$$
D
$$38.6$$
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