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Recent questions and answers in Engineering Mechanics
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GATE2018-1-17
The number of atoms per unit cell and the number of slip systems, respectively, for a face-centered cubic (FCC) crystal are $3, 3$ $3, 12$ $4, 12$ $4, 48$
mailman1310
answered
in
Engineering Mechanics
Dec 29, 2020
by
mailman1310
160
points
gateme-2018-set1
engineering-mechanics
0
answers
0
votes
GATE2020-ME-2: 5
An attempt is made to pull a roller of weight $W$ over a curb (step) by applying a horizontal force $F$ as shown in the figure. The coefficient of static friction between the roller and the ground (including the edge of the step) is $\mu$ Identify the correct free body diagram (FBD) of the roller when the roller is just about to climb over the step.
go_editor
asked
in
Engineering Mechanics
Sep 18, 2020
by
go_editor
5.0k
points
gateme-2020-set2
free-body-diagrams
engineering-mechanics
applied-mechanics-and-design
0
answers
0
votes
GATE2020-ME-2: 8
The number of qualitatively distinct kinematic inversions possible for a Grashof chain with four revolute pairs is $1$ $2$ $3$ $4$
go_editor
asked
in
Engineering Mechanics
Sep 18, 2020
by
go_editor
5.0k
points
gateme-2020-set2
engineering-mechanics
applied-mechanics-and-design
0
answers
0
votes
GATE2019 ME-2: 45
Three sets parallel plates $LM$, $NR$ and $PQ$ are given in Figures $1$, $2$ and $3$. The view factor $F_{IJ}$ is defined as the fraction of radiation leaving plate $I$ that is intercepted by plate $J$. Assume that the values of $F_{LM}$ and $F_{NR}$ are $0.8$ and $0.4$, respectively. The value of $F_{PQ}$ (round off to one decimal place) is ____________
Arjun
asked
in
Engineering Mechanics
Feb 9, 2019
by
Arjun
27.4k
points
gateme-2019-set2
numerical-answers
engineering-mechanics
2
answers
0
votes
GATE2018-2-25
A ball is dropped from rest from a height of $1 \: m$ in a frictionless tube as shown in the figure. If the tube profile is approximated by two straight lines (ignoring the curved portion), the total distance travelled (in $m$) by the ball is _____ (correct to two decimal places)
SHUBHAM SILSWAL
answered
in
Engineering Mechanics
Mar 13, 2018
by
SHUBHAM SILSWAL
140
points
gateme-2018-set2
numerical-answers
0
answers
0
votes
ISRO2017-1-1
A beam is fixed at one end and is vertically supported at the other end. What is the degree of statistical indeterminacy? $1$ $2$ $3$ $4$
m2n037
asked
in
Engineering Mechanics
Mar 5, 2018
by
m2n037
940
points
isro2017-1
0
answers
0
votes
GATE2018-2-39
A force of $100 \: N$ applied to the centre of a circular disc, of mass $10 \: kg$ and radius $1 \: m$, resting on a floor as shown in the figure. If the disc rolls without slipping on the floor, the linear acceleration (in $m/s^2$) of the centre of the disc is _______ (correct to two decimal places).
Arjun
asked
in
Engineering Mechanics
Feb 17, 2018
by
Arjun
27.4k
points
gateme-2018-set2
numerical-answers
0
answers
0
votes
GATE2018-2-30
A rigid rod of length $1 \: m$ is resting at an angle $\theta =45^{\circ}$ as shown in the figure. The end $P$ is dragged with a velocity of $U=5 \: m/s$ to the right. At the instant shown, the magnitude of the velocity $V$ (in $m/s$) of point $Q$ as it moves along the wall without losing contact is $5$ $6$ $8$ $10$
Arjun
asked
in
Engineering Mechanics
Feb 17, 2018
by
Arjun
27.4k
points
gateme-2018-set2
0
answers
0
votes
GATE2018-2-29
In a rigid body in plane motion, the point R is accelerating with respect to point P at $10 \angle 180^{\circ} \: m/s^2$. If the instantaneous acceleration of point $Q$ is zero, the acceleration (in $m/s^2$) of point $R$ is $8 \angle 233^{\circ}$ $10 \angle 225^{\circ}$ $10 \angle 217^{\circ}$ $8 \angle 217^{\circ}$
Arjun
asked
in
Engineering Mechanics
Feb 17, 2018
by
Arjun
27.4k
points
gateme-2018-set2
0
answers
0
votes
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
by
Arjun
27.4k
points
gateme-2018-set1
numerical-answers
engineering-mechanics
applied-mechanics-and-design
0
answers
0
votes
GATE2018-1-5
A bar of uniform cross section and weighing $100 \:N$ is held horizontally using two massless and inextensible strings $S1$ and $S2$ as shown in the figure The tensions in the strings are $T_1=100 \: N \text{ and } T_2=0 \: N$ $T_1=0 \: N \text{ and } T_2=100 \: N$ $T_1=75 \: N \text{ and } T_2=25 \: N$ $T_1=25 \: N \text{ and } T_2=75 \: N$
Arjun
asked
in
Engineering Mechanics
Feb 17, 2018
by
Arjun
27.4k
points
gateme-2018-set1
engineering-mechanics
applied-mechanics-and-design
0
answers
0
votes
GATE2016-2-31
A system of particles in motion has mass center $G$ as shown in the figure. The particle $i$ has mass $m_i$ and its position with respect to a fixed point $O$ is given by the position vector $r_i$. The position of the particle with respect to $G$ ... $\sum _i\rho _i\times m_i\ddot{r_i}$ $\sum _ir _i\times m_i\ddot{r_i}$ $\sum _i\rho _i\times m_i\ddot{\rho _i}$
Arjun
asked
in
Engineering Mechanics
Feb 24, 2017
by
Arjun
27.4k
points
gateme-2016-set2
angular-momentum
engineering-mechanics
applied-mechanics-and-design
0
answers
0
votes
GATE2015-2-32
For the truss shown in the figure, the magnitude of the force (in $kN$) in the member SR is $10$ $14.14$ $20$ $28.28$
Arjun
asked
in
Engineering Mechanics
Feb 24, 2017
by
Arjun
27.4k
points
gateme-2015-set2
trusses-and-frames
engineering-mechanics
applied-mechanics-and-design
0
answers
0
votes
GATE Mechanical 2014 Set 4 | Question: 40
A ladder AB of length $5$ $m$ and weight $(W)$ $600$ $N$ is resting against a wall. Assuming frictionless contact at the floor $(B)$ and the wall $(A)$, the magnitude of the force $P$ (in newton) required to maintain equilibrium of the ladder is _______
Arjun
asked
in
Engineering Mechanics
Feb 19, 2017
by
Arjun
27.4k
points
gateme-2014-set4
numerical-answers
engineering-mechanics
applied-mechanics-and-design
0
answers
0
votes
GATE Mechanical 2014 Set 4 | Question: 36
A frame is subjected to a load $P$ as shown in the figure. The frame has a constant flexural rigidity $EI$. The effect of axial load is neglected. The deflection at point $A$ due to the applied load $P$ is $\dfrac{1}{3}\dfrac{PL^3}{EI} \\$ $\dfrac{2}{3}\dfrac{PL^3}{EI} \\$ $\dfrac{PL^3}{EI} \\$ $\dfrac{4}{3}\dfrac{PL^3}{EI}$
Arjun
asked
in
Engineering Mechanics
Feb 19, 2017
by
Arjun
27.4k
points
gateme-2014-set4
engineering-mechanics
applied-mechanics-and-design
0
answers
0
votes
GATE Mechanical 2014 Set 4 | Question: 34
A uniform slender rod ($8$ $m$ length and $3$ $kg$ mass) rotates in a vertical plane about a horizontal axis $1$ $m$ from its end as shown in the figure. The magnitude of the angular acceleration (in $rad/s^2$) of the rod at the position shown is _______
Arjun
asked
in
Engineering Mechanics
Feb 19, 2017
by
Arjun
27.4k
points
gateme-2014-set4
numerical-answers
engineering-mechanics
applied-mechanics-and-design
0
answers
0
votes
GATE Mechanical 2014 Set 3 | Question: 18
The process utilizing mainly thermal energy for removing material is Ultrasonic Matching Electrochemical Matching Abrasive Jet Matching Laser Beam Matching
Arjun
asked
in
Engineering Mechanics
Feb 19, 2017
by
Arjun
27.4k
points
gateme-2014-set3
engineering-mechanics
laser-beam-matching
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