GATE2015-1-24

Arjun asked in Materials, Manufacturing and Industrial Engineering Feb 24, 2017 recategorized Mar 4, 2021 by Lakshman Patel RJIT

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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

gateme-2015-set1
materials-manufacturing-and-industrial-engineering
casting-forming-and-joining-process
principles-of-welding

Arjun asked in Materials, Manufacturing and Industrial Engineering Feb 24, 2017 recategorized Mar 4, 2021 by Lakshman Patel RJIT

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Arjun asked in Materials, Manufacturing and Industrial Engineering Feb 24, 2017

GATE2015-1-31
A DC welding power source has a linear voltage-current ($V$-$I$) characteristic with open circuit voltage of $80$ $V$ and a short circuit current of $300$ $A$. For maximum arc power, the current (in Amperes) should be set as_________

Arjun asked in Materials, Manufacturing and Industrial Engineering Feb 24, 2017

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Arjun asked in Materials, Manufacturing and Industrial Engineering Feb 24, 2017

GATE2015-3-21
Which two of the following joining processes are autogeneous? Diffusion welding Electroslag welding Tungsten inert gas welding Friction welding (i) and (iv) (ii) and (iii) (ii) and (iv) (i) and (iii)

Arjun asked in Materials, Manufacturing and Industrial Engineering Feb 24, 2017

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gateme-2015-set3
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Arjun asked in Materials, Manufacturing and Industrial Engineering Feb 24, 2017

GATE2015-2-51
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 $120$ $mm/min$ at the same arc voltage and ... so that weld quality remains the same. The welding current (in $A$) for this process is $40.00$ $44.72$ $55.90$ $62.25$

Arjun asked in Materials, Manufacturing and Industrial Engineering Feb 24, 2017

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gateme-2015-set2
principles-of-welding
casting-forming-and-joining-process
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Arjun asked in Materials, Manufacturing and Industrial Engineering Feb 24, 2017

GATE2015-1-36
The solidification time of a casting is proportional to $\left( \dfrac{V}{A} \right )^2$, where $V$ is the volume of the casting and $A$ is the total casting surface area losing heat. Two cubes of same material and size are cast using sand casting process. The top face of one of ... insulated to that of the other cube is $\dfrac{25}{36} \\$ $\dfrac{36}{25} \\$ $1 \\$ $\dfrac{6}{5}$

Arjun asked in Materials, Manufacturing and Industrial Engineering Feb 24, 2017

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gateme-2015-set1
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Arjun asked in Materials, Manufacturing and Industrial Engineering Feb 24, 2017

GATE2015-1-21
Match the following products with preferred manufacturing processes: ... $P-4, Q-3, R-2, S-1$ $P-2, Q-4, R-3, S-1$ $P-3, Q-4, R-2, S-1$

Arjun asked in Materials, Manufacturing and Industrial Engineering Feb 24, 2017

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gateme-2015-set1
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GATE2015-1-24

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