GATE2019 ME-1: 14

Arjun asked Feb 9, 2019 • recategorized Mar 5, 2021 by Lakshman Bhaiya

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Arjun asked Feb 9, 2019

GATE2019 ME-2: 51
A gas tungsten arc welding operation is performed using a current of $250 \: A$ and an arc voltage of $20 \: V$ at a welding speed of $5 \: mm/s$. Assuming that the arc efficiency is $70 \%$, the net heat input per unit length of the weld will be _________$kJ/mm$ (round off to one decimal place)

A gas tungsten arc welding operation is performed using a current of $250 \: A$ and an arc voltage of $20 \: V$ at a welding speed of $5 \: mm/s$. Assuming that the arc e...

Arjun

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Arjun asked Feb 9, 2019

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Arjun asked Feb 9, 2019

GATE2019 ME-1: 13
In a casting process, a vertical channel through which molten metal flows downward from pouring basin to runner for reaching the mold cavity is called blister sprue riser pin hole

In a casting process, a vertical channel through which molten metal flows downward from pouring basin to runner for reaching the mold cavity is calledblistersprueriserpin...

Arjun

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Arjun asked Feb 9, 2019

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Arjun asked Feb 9, 2019

GATE2019 ME-1: 37
Match the following sand mold casting defects with their respective causes. ... $P-3, Q-4, R-2, S-1$ $P-2, Q-4, R-1, S-3$ $P-3, Q-4, R-1, S-2$

Match the following sand mold casting defects with their respective causes.$\begin{array}{|l|l|l|l|} \hline \\ {} & \text{Defect} & {} & \text{Cause} \\ \hline P & \text{...

Arjun

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Arjun asked Feb 9, 2019

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Arjun asked Feb 26, 2017

GATE2017 ME-1: 23
In an arc welding process, welding speed is doubled. Assuming all other process parameters to be constant, the cross-sectional area of the weld bead will Increase by $25\%$ Increase by $50\%$ Reduce by $25\%$ Reduce by $50\%$

In an arc welding process, welding speed is doubled. Assuming all other process parameters to be constant, the cross-sectional area of the weld bead will Increase by $25\...

Arjun

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Arjun asked Feb 26, 2017

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Arjun asked Feb 17, 2018

GATE2018-1-12
The type of weld represented by the shaded region in the figure is groove spot fillet plug

The type of weld represented by the shaded region in the figure isgroovespotfilletplug

Arjun

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Arjun asked Feb 17, 2018

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