Recent questions tagged materials-manufacturing-and-industrial-engineering / GO Mechanical

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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 2 | Question: 22
Match the Machine Tools (Group A) with the probable Operations (Group B): ... $P-2, Q-1, R-4, S-3$ $P-3, Q-1, R-4, S-2$ $P-3, Q-4, R-2, S-1$

Match the Machine Tools (Group A) with the probable Operations (Group B):$$\begin{array}{|c|c|c|c|} \hline & \textbf{Group A} & & \textbf{Group B} \\ \hline P: & \text{Ce...

Arjun

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Arjun asked Feb 19, 2017

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GATE Mechanical 2014 Set 2 | Question: 21
A robot arm $PQ$ with end coordinates $P(0,0)$ and $Q(2,5)$ rotates counter clockwise about $P$ in the $XY$ plane by $90^\circ$. The new coordinate pair of the end point Q is $(−2,5)$ $(−5,2)$ $(−5, −2)$ $(2, −5)$

A robot arm $PQ$ with end coordinates $P(0,0)$ and $Q(2,5)$ rotates counter clockwise about $P$ in the $XY$ plane by $90^\circ$. The new coordinate pair of the end point ...

Arjun

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Arjun asked Feb 19, 2017

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GATE Mechanical 2014 Set 2 | Question: 20
The flatness of a machine bed can be measured using Vernier calipers Auto collimator Height gauge Tool maker’s microscope

The flatness of a machine bed can be measured usingVernier calipersAuto collimatorHeight gaugeTool maker’s microscope

Arjun

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Arjun asked Feb 19, 2017

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GATE Mechanical 2014 Set 1 | Question: 51
A metal rod of initial length $L_0$ is subjected to a drawing process. The length of the rod at any instant is given by the expression, $L(t)=L_0(1+t^2)$ , where $t$ is the time in minutes. The true strain rate (in $min^{−1}$) at the end of one minute is _______

A metal rod of initial length $L_0$ is subjected to a drawing process. The length of the rod at any instant is given by the expression, $L(t)=L_0(1+t^2)$ , where $t$ is t...

Arjun

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GATE Mechanical 2014 Set 1 | Question: 23
The main cutting force acting on a tool during the turning (orthogonal cutting) operation of a metal is $400$ $N$. The turning was performed using $2$ $mm$ depth of cut and $0.1$ $mm/rev$ feed rate. The specific cutting pressure (in $N$/$mm^2$) is $1000$ $2000$ $3000$ $4000$

The main cutting force acting on a tool during the turning (orthogonal cutting) operation of a metal is $400$ $N$. The turning was performed using $2$ $mm$ depth of cut a...

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 Mechanical 2014 Set 1 | Question: 21
Which one of the following instruments is widely used to check and calibrate geometric features of machine tools during their assembly? Ultrasonic probe Coordinate Measuring Machine (CMM) Laser interferometer Vernier calipers

Which one of the following instruments is widely used to check and calibrate geometric features of machine tools during their assembly?Ultrasonic probeCoordinate Measurin...

Arjun

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Arjun asked Feb 19, 2017

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GATE Mechanical 2014 Set 1 | Question: 20
For machining a rectangular island represented by coordinates $P(0,0), Q(100,0), R(100,50)$ and $S(0,50)$ on a casting using CNC milling machine, an end mill with a diameter of $16$ $mm$ ... $(0,0), (100,0), (100,50), (50,0), (0,0)$

For machining a rectangular island represented by coordinates $P(0,0), Q(100,0), R(100,50)$ and $S(0,50)$ on a casting using CNC milling machine, an end mill with a diame...

Arjun

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Arjun asked Feb 19, 2017

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GATE Mechanical 2014 Set 1 | Question: 17
Which one of the following is a CFC refrigerant? $R744$ $R290$ $R502$ $R718$

Which one of the following is a CFC refrigerant?$R744$$R290$$R502$$R718$

Arjun

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Arjun asked Feb 19, 2017

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GATE Mechanical 2014 Set 1 | Question: 13
The maximum theoretical work obtainable, when a system interacts to equilibrium with a reference environment, is called Entropy Enthalpy Exergy Rothalpy

The maximum theoretical work obtainable, when a system interacts to equilibrium with a reference environment, is calledEntropyEnthalpyExergyRothalpy

Arjun

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Arjun asked Feb 19, 2017

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GATE ME 2013 | Question: 53
In orthogonal turning of a bar of $100$ $mm$ diameter with a feed of $0.25$ $mm$/$rev$, depth of cut of $4$ $mm$ and cutting velocity of $90$ $m$/$min$, it is observed that the main (tangential) cutting force is perpendicular to the friction force ... ) cutting force is $1500$ $N$. The normal force acting at the chip-tool interface in $N$ is $1000$ $1500$ $2000$ $2500$

In orthogonal turning of a bar of $100$ $mm$ diameter with a feed of $0.25$ $mm$/$rev$, depth of cut of $4$ $mm$ and cutting velocity of $90$ $m$/$min$, it is observed th...

piyag476

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piyag476 asked Feb 19, 2017

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GATE ME 2013 | Question: 52
In orthogonal turning of a bar of $100$ $mm$ diameter with a feed of $0.25$ $mm$/$rev$, depth of cut of $4$ $mm$ and cutting velocity of $90$ $m$/$min$, it is observed that the main (tangential) cutting force is perpendicular to the friction ... tangential) cutting force is $1500$ $N$. The orthogonal rake angle of the cutting tool in degree is zero $3.58$ $5$ $7.16$

In orthogonal turning of a bar of $100$ $mm$ diameter with a feed of $0.25$ $mm$/$rev$, depth of cut of $4$ $mm$ and cutting velocity of $90$ $m$/$min$, it is observed th...

piyag476

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piyag476 asked Feb 19, 2017

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GATE ME 2013 | Question: 38
During the electrochemical machining $(ECM)$ of iron (atomic weight $= 56$, valency $= 2$) at current of $1000$ $A$ with $90\%$ current efficiency, the material removal rate was observed to be $0.26 gm/s$. If Titanium (atomic weight $= 48$, valency $= 3$) ... with $90\%$ current efficiency, the expected material removal rate in $gm/s$ will be $0.11$ $0.23$ $0.30$ $0.52$

During the electrochemical machining $(ECM)$ of iron (atomic weight $= 56$, valency $= 2$) at current of $1000$ $A$ with $90\%$ current efficiency, the material removal r...

piyag476

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GATE ME 2013 | Question: 35
In a $CAD$ package, mirror image of a $2D$ point $P(5,10)$ is to be obtained about a line which passes through the origin and makes an angle of $45^{\circ}$ counterclockwise with the $X$-axis. The coordinates of the transformed point will be $(7.5, 5)$ $(10, 5)$ $(7.5, -5)$ $(10, -5)$

In a $CAD$ package, mirror image of a $2D$ point $P(5,10)$ is to be obtained about a line which passes through the origin and makes an angle of $45^{\circ}$ counterclockw...

piyag476

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piyag476 asked Feb 19, 2017

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GATE ME 2013 | Question: 34
Two cutting tools are being compared for a machining operation. The tool life equations are: $\begin{array}{ll} \text{Carbide tool:} & VT^{1.6} = 3000 \\ \text{HSS tool:} & VT^{0.6} = 200 \end{array}$ where $V$ is the cutting speed in $m/min$ ... $m/min$ exceeds $15.0$ $39.4$ $49.3$ $60.0$

Two cutting tools are being compared for a machining operation. The tool life equations are:$\begin{array}{ll} \text{Carbide tool:} & VT^{1.6} = 3000 \\ \text{HSS tool:} ...

piyag476

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GATE ME 2013 | Question: 17
For a ductile material, toughness is a measure of resistance to scratching ability to absorb energy up to fracture ability to absorb energy till elastic limit resistance to indentation

For a ductile material, toughness is a measure ofresistance to scratchingability to absorb energy up to fractureability to absorb energy till elastic limitresistance to i...

piyag476

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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: 15
A steel bar $200$ $mm$ in diameter is turned at a feed of $0.25$ $mm$/$rev$ with a depth of cut of $4$ $mm$. The rotational speed of the workpiece is $160$ $rpm$. The material removal rate in $mm^3$/$s$ is $160$ $167.6$ $1600$ $1675.5$

A steel bar $200$ $mm$ in diameter is turned at a feed of $0.25$ $mm$/$rev$ with a depth of cut of $4$ $mm$. The rotational speed of the workpiece is $160$ $rpm$. The mat...

piyag476

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GATE ME 2013 | Question: 13
Customers arrive at a ticket counter at a rate of $50$ per $hr$ and tickets are issued in the order of their arrival. The average time taken for issuing a ticket is $1$ $min$. Assuming that customer arrivals form a Poisson process and service times are exponentially distributed, the average waiting time in queue in $min$ is $3$ $4$ $5$ $6$

Customers arrive at a ticket counter at a rate of $50$ per $hr$ and tickets are issued in the order of their arrival. The average time taken for issuing a ticket is $1$ $...

piyag476

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GATE ME 2013 | Question: 12
A metric thread of pitch $2$ $mm$ and thread angle $60^{\circ}$ is inspected for its pitch diameter using $3$-wire method. The diameter of the best size wire in $mm$ is $0.866$ $1.000$ $1.154$ $2.000$

A metric thread of pitch $2$ $mm$ and thread angle $60^{\circ}$ is inspected for its pitch diameter using $3$-wire method. The diameter of the best size wire in $mm$ is$0...

piyag476

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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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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