1
GATE ME 2015 Set 2
MCQ (Single Correct Answer)
+2
-0.6
During a $$TIG$$ welding process, the arc current and arc voltage were $$50$$ $$A$$ and $$60$$ $$V,$$ respectively, when the welding speed was $$150$$ $$mm/min.$$ In another process, the $$TIG$$ welding is carried out at a welding speed of $$120mm/min$$ at the same arc welding voltage and heat input to the material so that weld quality remains the same. The welding current (in $$A$$) for this process is
2
GATE ME 2015 Set 1
Numerical
+2
-0
A $$DC$$ welding power source has a linear voltage-current $$(V$$-$$I)$$ characteristic with open circuit voltage of $$80V$$ and a short circuit current of $$300A.$$ For maximum arc power, the current (in Amperes) should be set as _______________
Your input ____
3
GATE ME 2014 Set 4
Numerical
+2
-0
A butt weld joint is developed on steel plates having yield and ultimate tensile strength of $$500$$ $$MPa$$ and $$700$$ $$MPa,$$ respectively. The thickness of the plates is $$8mm$$ and width is $$20mm.$$ Improper selection of welding parameters caused an undercut of $$3mm$$ depth along the weld. The maximum transverse tensile load (in $$kN$$) carrying capacity of the developed weld joint is _________________
Your input ____
4
GATE ME 2014 Set 3
Numerical
+2
-0
For spot welding of two steel sheets (base metal) each of $$3$$ $$mm$$ thickness, welding current of $$10000$$ $$A$$ is applied for $$0.2$$ $$s$$. The heat dissipated to the base metal is $$1000J.$$ Assuming that the heat required for melting $$1m{m^3}$$ volume of steel is $$20J$$ and interfacial contact resistance between sheets is $$0.0002$$$$\Omega $$, the volume (in $$m{m^3}$$) of weld nugget is _____________
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Questions Asked from Welding Process (Marks 2)
Number in Brackets after Paper Indicates No. of Questions
GATE ME 2024 (1)
GATE ME 2022 Set 2 (1)
GATE ME 2022 Set 1 (1)
GATE ME 2016 Set 3 (1)
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GATE ME 2015 Set 2 (1)
GATE ME 2015 Set 1 (1)
GATE ME 2014 Set 4 (1)
GATE ME 2014 Set 3 (1)
GATE ME 2012 (1)
GATE ME 2010 (1)
GATE ME 2008 (1)
GATE ME 2007 (2)
GATE ME 2006 (1)
GATE ME 2005 (1)
GATE ME 2004 (1)
GATE ME 2003 (1)
GATE ME 2001 (1)
GATE ME 1996 (1)
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GATE ME Subjects
Engineering Mechanics
Machine Design
Strength of Materials
Heat Transfer
Production Engineering
Industrial Engineering
Turbo Machinery
Theory of Machines
Engineering Mathematics
Fluid Mechanics
Thermodynamics
General Aptitude