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Old January 26th, 2014, 10:17 AM
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Default Papers of engineering mechanics

Here I am looking for the Anna university Engineering Mechanics question papers, kindly provide me the same……..
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  #2  
Old January 26th, 2014, 11:08 AM
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Default Re: Papers of engineering mechanics

As you are looking for the Anna university Engineering Mechanics question papers, here I am uploading a PDF file that contains the same. There are descriptive types of the questions available. I have taken following questions from the attachment:

1. Define the following terms : (a) Coy Zoncurrent forces.

2. What zs the difference between a resultant torce and equilibrant force?

3. What is meant by free body diagram of a rigid body?

4. Write the conditions of equilibrium of a system of parallel forces acting zn a plane.

5. Define radius of gyration with respect to x-axis of an area.

6. State parallel axis theorem with simple sketch

7. The angular rotation of an accelerated disc is given by 6' = (9/32)t3 + (3/4)t2 + 6t
radians. Find its angular acceleration when t = 2 see.

8. What is linear momentum?

9. Define : Coefficient of static friction.

10. A body is rotating with an angular velocity of 5 radianslsec. After 4 seconds,

the angular velocity of the body becomes 13 radians/sec. Determine the angular
acceleration of the bodv.

Remaining questions are in the attachment, please click on it………
Attached Files Available for Download
File Type: pdf Anna university Engineering Mechanics question papers.pdf (1.06 MB, 99 views)
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Old September 19th, 2015, 05:07 PM
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Default Re: Papers of engineering mechanics

I am a BTECH Mechanical engineering student of Anna University . Will you please provide here Engineering Mechanics subject question paper ?
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  #4  
Old September 19th, 2015, 05:10 PM
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Join Date: Jun 2013
Default Re: Papers of engineering mechanics

As you want I am here giving you question paper of Engineering Mechanics of BTECH Mechanical engineering course of Anna University

Sample questions :

1. Define the following terms : (a) Coplanar forces (b) Concurrent forces.

2. What i s the difference between a resultant force and equilibration force?

3. What is meant by free body diagram of a rigid body?

4. Write the conditions of equilibrium of a system of parallel forces acting in a plane.

5. De¯ne radius of gyration with respect to x-axis of an area.

6. State parallel axis theorem with simple sketch.

7. The angular rotation of an accelerated disc is given by µ = (9=32)t3 + (3=4)t2 + 6t radians. Find its angular acceleration when t = 2 sec.

8. What i s linear momentum?

9. Define : Coefficient of static friction.

10. A body is rotating with an angular velocity of 5 radians/sec. After 4 seconds,
the angular velocity of the body becomes 13 radians/sec. Determine the angular
acceleration of the body.

Part B - (5 x 16 = 80 Marks)

11. (a) (i) Determine the resultant of the concurrent force system shown in the fol-
lowing (Marks 8)
(ii) The following figure shows a 10 kg lamp supported by two cables AB and
AC. Find the tension in each cable. (Marks 8)
OR
11. (b) Forces 32 kN, 24 kN, 24 kN and 120 kN are concurrent at origin and are
respectively directed through the points whose coordinates are A(2, 1, 6),
B (4, -2, 5), C (-3, -2, 1) and D (5, 1, -2). Determine the magnitude of the
resultant and the angles it makes with coordinate axes. (16)

12. (a) (i) A force (10i + 20j ¡ 5k)N acts at a point P (4, 3, 2) m. Determine the
moment of this force about the point Q(2, 3, 4) m in vector form. Also
find the magnitude of the moment and its angles with respect to x; y; z
axes. (Marks 8)
(ii) A plate ABCD in the shape of a parallelogram is acted upon by two couples,
as shown in the figure.
Determine the angle ¯ if the resultant couple is 1.8 N.m clockwise. (Marks 8)
OR
12. (b) Two beams AB and CD are shown in figure. A and D are hinged supports. B
and C are roller supports.
(i) Sketch the free body diagram of the beam AB and determine the reactions
at the supports A and B. (Marks 9)
(ii) Sketch the free body diagram of the beam CD and determine the reactions
at the supports C and D. (Marks 7)
13. (a) (i) Derive, from first principle, the second moments of area
Ixx and Iyy for the rectangular area when the axes are as shown below:
(Marks 6)
(ii) Derive, by direct integration, an expression for the second moment of area
of a triangle, shown in figure, about x-axis. (Marks 10)

13. (b) (i) Calculate the centroid polar moment of inertia of a rectangular section
with breadth of 100 mm and height of 200 mm. (Marks 4)
(ii) Find the moment of inertia of the shaded area shown in figure about the
vertical and horizontal centroid axes. The width of the hole i s 200 mm.
(Marks 12)
14. (a) (i) A stone i s thrown vertically upwards from a point on a bridge located 40
m above the water. If it strikes the water 4 s after release, determine the
speed at which the stone was thrown and the speed at which the stone
strikes the water. (Marks 8)
(ii) A bomb is dropped from an aerospace flying at a speed of 800 km/h at
a height of 1500 m above the level ground. Find the horizontal distance
covered by the bomb after its release. Also and the time required for the
bomb to hit the target and the velocity with which the bomb hits the
target. (Marks 8)
OR
14. (b) A ball of mass 1 kg moving with a velocity of 6 m/s strikes another ball of mass
2 kg moving with a velocity of 2 m/s at the instant of impact the velocities of
the two balls are parallel and inclined at 30± to the line joining their centers
as shown in the figure.
If the coefficient of restitution i s 0.5, find the velocity and the direction of the
two balls after impact. Also calculate the loss in kinetic energy due to impact
and the percentage of loss. (Marks 16)

15. (a) (i) Two blocks A and B of mass 50 kg and 100 kg respectively are connected
by a string C which passes through a frictionless pulley connected with the
fixed wall by another string D as shown in figure.
Find the force P required to pull the block B. Also find the tension in the
string D. Take coefficient of friction at all contact surfaces as 0.3. (8)
(ii) In a belt drive, the smaller pulley is subjected to a tension T1 on the tight
side and a tension T2 on the slack side. Derive a relation between these
tensions in terms of the coefficient of friction and the angle of wrap. (Marks 8)
OR
15. (b) The figure given below shows a stepped pulley. The smaller radius is 150mm
and the bigger radius i s 200 mm. Two loads P and Q are connected by
inextensible taut cords.
Load P moves with an initial velocity of 0.2 m/s and has a constant acceleration
of 0.25 m/s2 both downwards. Determine
(i) The number of revolutions turned by the pulley in 4 seconds
(Marks 6)
(ii) Velocity and the distance traveled by load Q after 4 seconds.
(Marks 5)
(iii) Acceleration of point B located on the rim of the pulley at t = 0. Give
both magnitude and direction. (Marks 5)


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Sardar Patel Road
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Chennai, Tamil Nadu 600025

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