GATE ME 2016 Set 1 | Welding Process Question 11 | Production Engineering

GATE ME 2016 Set 1

MCQ (Single Correct Answer)

-0.3

Under optimal conditions of the process the temperatures experienced by a copper work piece in fusion welding, brazing and soldering are such that

$${T_{welding}}\, > \,{T_{soldering}}\, > \,{T_{brazing}}$$

$${T_{soldering}}\, > \,{T_{welding}}\, > \,{T_{brazing}}$$

$${T_{brazing}}\, > \,{T_{welding}}\, > \,{T_{soldering}}$$

$${T_{welding}}\, > \,{T_{brazing}}\, > \,{T_{soldering}}$$

GATE ME 2015 Set 1

MCQ (Single Correct Answer)

-0.3

In a linear arc welding process, the heat input per unit length is inversely proportional to

welding current

welding voltage

welding speed

duty cycle of the power source

GATE ME 2015 Set 3

MCQ (Single Correct Answer)

-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

$$(i)$$ and $$(iv)$$

$$(ii)$$ and $$(iii)$$

$$(ii)$$ and $$(iv)$$

$$(i)$$ and $$(iii)$$

GATE ME 2014 Set 1

MCQ (Single Correct Answer)

-0.3

The major difficulty during welding of aluminium is due to its

high tendency of oxidation

high thermal conductivity

low melting point

low density

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