Recent questions tagged gateme-2018-set1

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GATE Mechanical 2018 Set 1 | GA Question: 9
Which of the following functions describe the graph shown in the below figure? $y=\mid \mid x \mid + 1 \mid -2$ $y=\mid \mid x \mid - 1 \mid -1$ $y=\mid \mid x \mid + 1 \mid -1$ $y=\mid \mid x - 1 \mid -1\mid$

Arjun asked in Quantitative Aptitude Feb 17, 2018

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GATE Mechanical 2018 Set 1 | GA Question: 10
Consider the following three statements: Some roses are red. All red flowers fade quickly. some roses fade quickly. Which of the following statements can be logically inferred from the above statements? If (i) is true and (ii) is false, then (iii) is false. If (i ... ) and (ii) are true, then (iii) is true. If (i) and (ii) are false, then (iii) is false.

Arjun asked in Analytical Aptitude Feb 17, 2018

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GATE Mechanical 2018 Set 1 | GA Question: 8
From the time the front of a train enters a platform, it takes $25$ seconds for the back of the train to leave the platform, while traveling at a constant speed of $54$ km/h. At the same speed, it takes $14$ seconds to pass a man running at $9$ ... the platform in meters, respectively? $210$ and $140$ $162.5$ and $187.5$ $245$ and $130$ $175$ and $200$

Arjun asked in Quantitative Aptitude Feb 17, 2018

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GATE Mechanical 2018 Set 1 | GA Question: 7
Given that $a$ and $b$ are integers and $a+a^2 b^3$ is odd, which of the following statements is correct? $a$ and $b$ are both odd $a$ and $b$ are both even $a$ is even and $b$ is odd $a$ is odd and $b$ is even

Arjun asked in Quantitative Aptitude Feb 17, 2018

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GATE Mechanical 2018 Set 1 | GA Question: 6
For integers, $a$, $b$ and $c$, what would be the minimum and maximum values respectively of $a+b+c$ if $\log \mid a \mid + \log \mid b \mid + \log \mid c \mid =0$? $\text{-3 and 3}$ $\text{-1 and 1}$ $\text{-1 and 3}$ $\text{1 and 3}$

Arjun asked in Quantitative Aptitude Feb 17, 2018

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GATE Mechanical 2018 Set 1 | GA Question: 5
A number consists of two digits. The sum of the digits is $9$. If $45$ is subtracted from the number, its digits are interchanged. What is the number? $63$ $72$ $81$ $90$

Arjun asked in Quantitative Aptitude Feb 17, 2018

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GATE Mechanical 2018 Set 1 | GA Question: 4
A rectangle becomes a square when its length and breadth are reduced by $10$ m and $5$ m, respectively. During this process, the rectangle loses $650 m^2$ of area. What is the area of the original rectangle in square meters? $1125$ $2250$ $2924$ $4500$

Arjun asked in Quantitative Aptitude Feb 17, 2018

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GATE Mechanical 2018 Set 1 | GA Question: 3
Seven machines take $7$ minutes to make $7$ identical toys. At the same rate, how many minutes would it take for $100$ machine to make $100$ toys? $1$ $7$ $100$ $700$

Arjun asked in Quantitative Aptitude Feb 17, 2018

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GATE Mechanical 2018 Set 1 | GA Question: 2
"Her _____ should not be confused with miserliness; she is ever willing to assist those in need." The word that best fills the blank in the above sentence is cleanliness punctuality frugality greatness

Arjun asked in Verbal Aptitude Feb 17, 2018

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GATE Mechanical 2018 Set 1 | GA Question: 1
"Going by the _____ that many hands make light work, the school ____ involved all the students in the task." The words that best fill the blanks in the above sentence are principle, principal principal, principle principle, principle principal, principal

Arjun asked in Verbal Aptitude Feb 17, 2018

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GATE2018-1-55
An electrochemical machining (ECM) is to be used to cut a through hole into a $12$ mm thick aluminum plate. The hole has a rectangular cross-section. $10 \: mm \times 30 \:mm$. The ECM operation will be accomplished in $2$ minutes, with efficiency of $90 \%$. Assuming ... , the current (in A) required is __________ (correct to two decimal places).

Arjun asked in Computer Integrated Manufacturing Feb 17, 2018

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GATE2018-1-54
Block $P$ of mass $2$ kg slides down the surface and has a speed $20 \: m/s$ at the lowest point, $Q$, where the local radius of curvature is $2$ m as shown in the figure. Assuming $g=10 \: m/s^2$, the normal force (in $N$) at $Q$ is ____ correct to two decimal places.

Arjun asked in Engineering Mechanics Feb 17, 2018

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GATE2018-1-53
The schematic of an external drum rotating clockwise engaging with a short shoe is shown in the figure. The shoe is mounted at point Y on a rigid lever XYZ hinged at point X. A force $F=100$ N is applied at the free end of the lever as shown. Given that the ... the shoe and the drum is $0.3$, the braking torque in (Nm) applied on the drum is _____ (correct to two decimal places)

Arjun asked in Machine Design Feb 17, 2018

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GATE2018-1-52
Processing times (including setup times) and due dates for six jobs waiting to be processed at a work centre are given in the table. The average tardiness (in days) using shortest processing time rule is __________ (correct to two decimal places). ...

Arjun asked in Inventory Control Feb 17, 2018

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GATE2018-1-51
The minimum value of $3x+5y$ such that $3x+5y \leq 15$ $4x+9y \leq 18$ $13x+2y \leq 2$ $x \geq 0, \: y \geq 0$ is ______

Arjun asked in Numerical Methods Feb 17, 2018

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GATE2018-1-50
A bar is compressed to half to its original length. The magnitude of true strain produced in the deformed bar is __________ (correct to two decimal places)

Arjun asked in Mechanics of Materials Feb 17, 2018

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GATE2018-1-49
An orthogonal cutting operation is being carried out in which uncut thickness is $0.010$ mm, cutting speed is $130$ m/min, rake angle is $15^{\circ}$ and width of cut is $6$ mm. It is observed that the chip thickness is $0.015$ mm, the cutting force is $60$ N and the thrust force is $25$ N. The ratio of friction energy to total energy is _______ (correct to two decimal places).

Arjun asked in Casting, Forming and Joining Processes Feb 17, 2018

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GATE2018-1-48
The true stress $(\sigma)$ - true strain $(\varepsilon)$ diagram of a strain hardening material is shown in figure. First, there is loading up to point A, i.e., up to stress of $500$ MPa and strain of $0.5$. Then from point A, there is unloading ... . Given that the Young's modulus $E=200$ GPa, te natural strain at point B$(\varepsilon_B)$ is _____ (correct to three decimal places)

Arjun asked in Mechanics of Materials Feb 17, 2018

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GATE2018-1-47
A plane slab of thickness $L$ and thermal conductivity $k$ is heated heated with a fluid on one side $(P)$, and the other side $(Q)$ is maintained at a constant temperature, $T_Q$ of $25^{\circ}C$ ... The steady state temperature, $T_P$ (in $^{\circ}$C) of the side which is exposed to the fluid is _____ (correct to two decimal places)

Arjun asked in Heat Transfer Feb 17, 2018

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GATE2018-1-46
An engine working on air standard Otto cycle is supplied with air at $0.1 MPa$ and $35^{\circ} \: C$. The compression ratio is $8$. The heat supplied is $500 \: kJ/kg \: K$. The maximum temperature (in $K$) of the cycle is _______ (correct to one decimal place)

Arjun asked in Applications Feb 17, 2018

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GATE2018-1-45
Steam flows through a nozzle at a mess flow rate of $m=0.1 \: kg/s$ with a heat loss of $5 \: kW$. The enthalpies at inlet and exit are $2500 \: kJ/kg$ and $2350 \: kJ/kg$, respectively. Assuming negligible velocity in inlet ($C_1 \approx 0$), the velocity ($C_2$) of steam (in $m/s$) at the nozzle exit is _____ (correct to two decimal places).

Arjun asked in Applications Feb 17, 2018

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GATE2018-1-44
A tank of volume $0.05 \: m^3$ contains a mixture of saturated water and saturated steam at $200 ^{\circ}C$. The mass of the liquid present is $8 \: kg$. The entropy (in $kJ/kg \: K$) of the mixture is _______ (correct to two decimal places). Property data for saturated steam and water are: ... $s_{fg}=4.1014 \: kJ/kg \: K, \: s_f=2.3309 \: kJ/kg \: K$

Arjun asked in Thermodynamics Feb 17, 2018

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GATE2018-1-43
A solid block of $2.0 \: kg$ mass slides steadily at a velocity $V$ along a vertical wall as shown in the figure below. A thin oil film of thickness $h=0.15 \: mm$ provides lubrication between the block and the wall. The surface area of the face of the block ... $V$ (in $m/s$) of the block is ______ (correct to one decimal place)

Arjun asked in Fluid Mechanics Feb 17, 2018

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GATE2018-1-42
A sprinkler shown in the figure rotates about its hinge point in a horizontal plane due to water flow discharged through its two exit nozzles. The total flow rate Q through the sprinkler is $1$ litre/sec and the cross-sectional area of each exit nozzle ... hinge, the steady state angular speed of rotation (in rad/s) of the sprinkler is ______ (correct to two decimal places)

Arjun asked in Fluid Mechanics Feb 17, 2018

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GATE2018-1-41
A slider crank mechanism is shown in the figure. At some instant, the crank angle is 45$^{\circ}$ and force of $40$ N is acting towards the left on the slider. The length of the crank is $30$ mm and the connecting rod is $70$ mm. ... inertial forces, the magnitude of the crankshaft torque (in Nm) needed to keep the mechanism in equilibrium is ______ (correct to two decimal places)

Arjun asked in Theory of Machines Feb 17, 2018

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GATE2018-1-40
A machine of mass $m=200 \: kg$ is supported on two mounts, each of stiffness $k=10 \: kN/m$. The machine is subjected to an external force (in $N$) $F(t) = 50 \cos 5t$. Assuming only vertical translatory motion, the magnitude of the dynamic force (in $N$) transmitted from each mount to the ground is _________ (correct to two decimal places).

Arjun asked in Vibrations Feb 17, 2018

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GATE2018-1-39
A simply supported beam of width $100$ mm, height $200$ mm and length 4 m is carrying a uniformly distributed load of intensity $10 \: kN/m$. The maximum bending stress (in MPa) in the beam is _________ (correct to one decimal place)

Arjun asked in Mechanics of Materials Feb 17, 2018

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GATE2018-1-38
$F(s)$ is the Laplace transform of the function $f(t) =2t^2 e^{-t}$. $F(1)$ is _______ (correct to two decimal places).

Arjun asked in Differential Equations Feb 17, 2018

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GATE2018-1-37
An explicit forward Euler method is used to numerically integrate the differential equation $\dfrac{dy}{dt} = y$ using a time step of $0.1$. With the initial condition $y(0)=1$, the value of $y(1)$ computed by this method is ________ (correct to two decimal places)

Arjun asked in Differential Equations Feb 17, 2018

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GATE2018-1-36
The percentage scrap in a sheet metal blanking operation of a continuous strip of sheet metal as shown in the figure is _______ (correct to two decimal places)

Arjun asked in Casting, Forming and Joining Processes Feb 17, 2018

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GATE2018-1-35
The maximum reduction in cross-sectional area per pass $(R)$ of a cold wire drawing process is $R=1-e^{-(n+1)}$, where $n$ represents the strain hardening coefficient. For the case of a perfectly plastic material, $R$ is $0.865$ $0.826$ $0.777$ $0.632$

Arjun asked in Casting, Forming and Joining Processes Feb 17, 2018

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GATE2018-1-34
In a Lagrangian system, the position of a fluid particle in a flow is described as $x=x_0e^{-kt}$ and $y=y_oe^{kt}$ where $t$ is the time while $x_o, \: y_o$, and $k$ are constants. The flow is unsteady and one-dimensional steady and two-dimensional steady and one-dimensional unsteady and two-dimensional

Arjun asked in Fluid Mechanics Feb 17, 2018

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GATE2018-1-33
A tank open at the top with a water level of $1$ m, as shown in the figure, has a hole at a height of 0.5 m. A free jet leaves horizontally from the smooth hole. The distance X (in m) where the jet strikes the floor is $0.5$ $1.0$ $2.0$ $4.0$

Arjun asked in Fluid Mechanics Feb 17, 2018

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GATE2018-1-32
A self-aligning ball bearing has a basic dynamic load rating $(C_{10}$, for $10^6$ revolutions) of $35$ kN. If the equivalent radial load on the bearing is $45$ kN, the expected life (in $10^6$ revolutions) is below $0.5$ $0.5$ to $0.8$ $0.8$ to $1.0$ above $1.0$

Arjun asked in Machine Design Feb 17, 2018

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GATE2018-1-27
The value of the integral over the closed surface $S$ bounding a volume $V$, where $\overrightarrow{r} = x \hat{i} + y \hat{j}+z \hat{k}$ is the position vector and $\overrightarrow{n}$ is the normal to the surface $S$, is $V$ $2V$ $3V$ $4V$

Arjun asked in Calculus Feb 17, 2018

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GATE2018-1-26
Let $X_1, \: X_2$ be two independent normal random variables with means $\mu_1, \: \ \mu_2$ and standard deviations $\sigma_1, \: \sigma_2$, respectively. Consider $Y=X_1-X_2; \: \mu_1 = \mu_2 =1, \: \sigma_1=1, \: \sigma_2=2$. Then, $Y$ is normally ... $0$ and variance $5$, but is NOT normally distributed $Y$ has mean $0$ and variance $1$, but is NOT normally distributed

Arjun asked in Probability and Statistics Feb 17, 2018

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GATE2018-1-31
A carpenter glues a pair of cylindrical wooden logs by bonding their end faces at an angle of $\theta = 30^{\circ}$ as shown in the figure. The glue used at the interface fails is Criterion 1: the maximum normal stress exceeds $2.5$ MPa Criterion 2: the ... fails only because of criterion $1$ fails only because of criterion $2$ fails because of both criterion $1$ and $2$ does not fail

Arjun asked in Applied Mechanics and Design Feb 17, 2018

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GATE2018-1-30
An epicyclic gear train is shown in the figure below. The number of teeth on the gears A, B and D are $20$, $30$ and $20$, respectively. Gear C has $80$ teeth on the inner surface and $100$ teeth on the outer surface. If the carrier arm AB is fixed and the ... A rotates at $300$ rpm in the clockwise direction, then the rpm of D in the clockwise direction is $240$ $-240$ $375$ $-375$

Arjun asked in Applied Mechanics and Design Feb 17, 2018

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GATE2018-1-29
The state of stress at a point, for a body in plane stress, is shown in the figure below. If the minimum principal stress is $10$ kPa, then the normal stress $\sigma_y$ (in kPa) is $9.45$ $18.88$ $37.78$ $75.50$

Arjun asked in Applied Mechanics and Design Feb 17, 2018

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GATE2018-1-28
A point mass is shot vertically up from ground level with a velocity of $4$ m/s at time, $t=0$. It loses $20 \%$ of its impact velocity after each collision with the ground. Assuming that the acceleration due to gravity is $10 \: m/s^2$ and that air resistance ... , the mass stops bouncing and comes to complete rest on the ground after a total time (in seconds) of $1$ $2$ $4$ $\infty$

Arjun asked in Applied Mechanics and Design Feb 17, 2018

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