1
GATE PI 2005
MCQ (Single Correct Answer)
+2
-0.6
Consider the following statements:

The size of the heat affected zone (HAZ) will increase with
$$1.$$ increased starting temperature
$$2.$$ increased welding speed
$$3.$$ increased thermal conductivity of the base metal
$$4.$$ increase in base metal thickness

Which of the statements given above are correct?

A
$$1,2$$ and $$3$$
B
$$1$$ and $$3$$
C
$$1$$ and $$4$$
D
$$2$$ and $$3$$
2
GATE PI 2005
MCQ (Single Correct Answer)
+2
-0.6
Consider the following statements :

The magnitude of residual stresses in welding depends upon
$$1.$$ Metal melted / deposited
$$2.$$ Design of weldment
$$3.$$ Support and clamping of components
$$4.$$ Welding process used

Which of the statements given above are correct?

A
$$1,2$$ and $$4$$
B
$$1,2$$ and $$3$$
C
$$1$$ and $$3$$
D
$$2$$ and $$3$$
3
GATE PI 2005
MCQ (Single Correct Answer)
+2
-0.6
In a fabrication shop, a $$T$$-joint is to be made between two plates using a chain intermittent, double fillet weld of $$6$$ $$mm$$ leg length. The intermittent welds are $$40$$ $$mm$$ long and spaced $$80$$ $$mm$$ apart, edge to edge.

The welding symbol of the joint is

A
GATE PI 2005 Joining of Materials - Welding Question 1 English Option 1
B
GATE PI 2005 Joining of Materials - Welding Question 1 English Option 2
C
GATE PI 2005 Joining of Materials - Welding Question 1 English Option 3
D
GATE PI 2005 Joining of Materials - Welding Question 1 English Option 4
4
GATE PI 2003
MCQ (Single Correct Answer)
+2
-0.6
A $$900$$ $$mm$$ long steel plate is welded by manual metal arc welding process using welding current of $$150$$ $$A,$$ arc voltage of $$20$$ $$V$$ and welding speed of $$300$$ $$mm/min.$$ If the process efficiency of is $$0.8$$ and surface resistance is $$36$$ micro-ohm, the heat input will be
A
$$600$$ $$J/mm$$
B
$$480$$ $$J/min$$
C
$$146$$ $$kJ$$
D
$$116$$ $$kJ$$
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