Recent questions tagged casting-forming-and-joining-process / GO Mechanical

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GATE Mechanical 2014 Set 4 | Question: 25
In a rolling process, the maximum possible draft, defined as the difference between the initial and the final thickness of the metal sheet, mainly depends on which pair of the following parameters? P: Strain Q: Strength of the work material R: Roll diameter S: Roll velocity T: Coefficient of friction between roll and work Q,S R,T S,T P,R

In a rolling process, the maximum possible draft, defined as the difference between the initial and the final thickness of the metal sheet, mainly depends on which pair o...

Arjun

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Arjun asked Feb 19, 2017

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GATE Mechanical 2014 Set 4 | Question: 20
Within the Heat Affected Zone (HAZ) in a fusion welding process, the work material undergoes microstructural changes but does not melt neither melting nor microstructural changes both melting and microstructural changes after solidification melting and retains the original microstructure after solidification

Within the Heat Affected Zone (HAZ) in a fusion welding process, the work material undergoesmicrostructural changes but does not meltneither melting nor microstructural c...

Arjun

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Arjun asked Feb 19, 2017

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GATE Mechanical 2014 Set 3 | Question: 52
A cylindrical blind riser with diameter d and height h , is placed on the top of the mold cavity of a closed type san d mold as shown in the figure. If the riser is of constant volume, then the rate of solidification in the riser is the least when the ratio h:d is $1:2$ $2:1$ $1:4$ $4:1$

A cylindrical blind riser with diameter d and height h , is placed on the top of the mold cavity of a closed type san d mold as shown in the figure. If the riser is of co...

Arjun

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Arjun asked Feb 19, 2017

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GATE Mechanical 2014 Set 3 | Question: 25
The hot tearing in a metal casting is due to high fluidity high melt temperature wide range of solidification temperature low coefficient of thermal expansion

The hot tearing in a metal casting is due tohigh fluidityhigh melt temperaturewide range of solidification temperaturelow coefficient of thermal expansion

Arjun

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Arjun asked Feb 19, 2017

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GATE Mechanical 2014 Set 3 | Question: 22
Match the casting defects (Group A) with the probable causes (Group B): ... $P-4, Q-3, R-2, S-1$ $P-3, Q-4, R-2, S-1$ $P-1, Q-2, R-4, S-3$

Match the casting defects (Group A) with the probable causes (Group B):$\begin{array}{|l|l|}\hline \textbf{Group A} & \textbf{Group B} \\ \hline \text{P: Hot tears} & ...

Arjun

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Arjun asked Feb 19, 2017

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GATE Mechanical 2014 Set 2 | Question: 53
A mild steel plate has to be rolled in one pass such that the final plate thickness is $2/3^{rd}$ of the initial thickness, with the entrance speed of $10 \: m/min$ and roll diameter of $500$ $mm$. If the plate widens by $2\%$ during rolling, the exit velocity (in $m/min$) is _______

A mild steel plate has to be rolled in one pass such that the final plate thickness is $2/3^{rd}$ of the initial thickness, with the entrance speed of $10 \: m/min$ and r...

Arjun

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Arjun asked Feb 19, 2017

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GATE Mechanical 2014 Set 2 | Question: 25
With respect to metal working, match Group A with Group B: ... $P-III, Q-I, R-VI, S-V$ $P-III, Q-I, R-IV, S-VI$ $P-I, Q-II, R-V, S-VI$

With respect to metal working, match Group A with Group B:$$\begin{array}{|l|l|l|l|} \hline & \textbf{Group A} && \textbf{Group B} \\ \hline P. & \text{Defect in extrusio...

Arjun

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Arjun asked Feb 19, 2017

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GATE Mechanical 2014 Set 2 | Question: 23
The following four unconventional machining processes are available in a shop floor. The most appropriate one to drill a hole of square cross section of $6$ $mm \times 6$ $mm$ and $25$ $mm$ deep is Abrasive Jet Machining Plasma Arc Machining Laser Beam Machining Electro Discharge Machining

The following four unconventional machining processes are available in a shop floor. The most appropriate one to drill a hole of square cross section of $6$ $mm \times 6$...

Arjun

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Arjun asked Feb 19, 2017

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GATE Mechanical 2014 Set 1 | Question: 22
The major difficulty during welding of aluminum is due to its high tendency of oxidation high thermal conductivity low melting point low density

The major difficulty during welding of aluminum is due to itshigh tendency of oxidationhigh thermal conductivitylow melting pointlow density

Arjun

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Arjun asked Feb 19, 2017

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GATE ME 2013 | Question: 16
A cube shaped casting solidifies in $5$ $min$. The solidification time in min for a cube of the same material, which is $8$ times heavier than the original casting, will be $10$ $20$ $24$ $40$

A cube shaped casting solidifies in $5$ $min$. The solidification time in min for a cube of the same material, which is $8$ times heavier than the original casting, will ...

piyag476

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piyag476 asked Feb 19, 2017

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GATE ME 2013 | Question: 11
Match the CORRECT pairs: ... $P-4; Q-2; R-3; S-1$ $P-2; Q-3; R-4; S-1$ $P-2; Q-4; R-1; S-3$

Match the CORRECT pairs:$\begin{array}{llll} & \text{Process} & & \text{Characteristics/Applications} \\ P. & \text{Friction Welding} & 1. & \text{Non-consumable electrod...

piyag476

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piyag476 asked Feb 19, 2017

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GATE ME 2013 | Question: 10
In a rolling process, the state of stress of the material undergoing deformation is pure compression pure shear compression and shear tension and shear

In a rolling process, the state of stress of the material undergoing deformation ispure compressionpure shearcompression and sheartension and shear

piyag476

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piyag476 asked Feb 19, 2017