GATE2019 ME-2: 16

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

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Arjun asked Feb 9, 2019

GATE2019 ME-2: 15
The fluidity of molten metal of cast alloys (without any addition of fluxes) increases with increase in viscosity surface tension freezing range degree of superheat

The fluidity of molten metal of cast alloys (without any addition of fluxes) increases with increase inviscositysurface tensionfreezing rangedegree of superheat

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Arjun asked Feb 9, 2019

GATE2019 ME-2: 50
The figure shows a pouring arrangement for casting of a metal block. Frictional losses are negligible. The acceleration due to gravity is $9.81 \: m/s^2$ .The time (in $s$, round off to two decimal places) to fill up the mold cavity (of size $40 \: cm \times 30 \: cm \times 15 \: cm$) is _____

The figure shows a pouring arrangement for casting of a metal block. Frictional losses are negligible. The acceleration due to gravity is $9.81 \: m/s^2$ .The time (in $s...

Arjun

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Arjun asked Feb 9, 2019

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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...

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Arjun asked Feb 9, 2019

GATE2019 ME-2: 52
The thickness of a sheet is reduced by rolling (without any change in width) using $600 \: mm$ diameter rolls. Neglect elastic deflection of the rolls and assume that the coefficient of friction at the roll-workpiece interface is $0.05$. The sheet enters ... final thickness that can be produced by this process in a single pass is __________ $mm$ (round off to two decimal places).

The thickness of a sheet is reduced by rolling (without any change in width) using $600 \: mm$ diameter rolls. Neglect elastic deflection of the rolls and assume that the...

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Arjun asked Feb 9, 2019

GATE2019 ME-2: 17
The most common limit gage used for inspecting the hole diameter is Snap gage Ring gage Plus gage Madter gage

The most common limit gage used for inspecting the hole diameter isSnap gageRing gagePlus gageMadter gage

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