1
GATE ME 2015 Set 3
MCQ (Single Correct Answer)
+1
-0.3
Which two of the following joining processes are autogeneous?
$$(i)$$ Diffusion welding
$$(ii)$$ Electro slag welding
$$(iii)$$ Tungsten inert gas welding
$$(iv)$$ Friction welding
A
$$(i)$$ and $$(iv)$$
B
$$(ii)$$ and $$(iii)$$
C
$$(ii)$$ and $$(iv)$$
D
$$(i)$$ and $$(iii)$$
2
GATE ME 2015 Set 1
MCQ (Single Correct Answer)
+1
-0.3
In a linear arc welding process, the heat input per unit length is inversely proportional to
A
welding current
B
welding voltage
C
welding speed
D
duty cycle of the power source
3
GATE ME 2014 Set 1
MCQ (Single Correct Answer)
+1
-0.3
The major difficulty during welding of aluminium is due to its
A
high tendency of oxidation
B
high thermal conductivity
C
low melting point
D
low density
4
GATE ME 2014 Set 1
MCQ (Single Correct Answer)
+1
-0.3
In solid-state welding, the contamination layers between the surfaces to be welded are removed by
A
alcohol
B
plastic deformation
C
water jet
D
sand blasting
GATE ME Subjects
Turbo Machinery
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
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CBSE
Class 12