Note: Answer all questions from Part-A. Answer any FIVE questions from Part-B.
PART A (25 Marks)
1 State the principle of Transmissibility?
2
--- Content provided by FirstRanker.com ---
2 Following forces act at a point P, F1 = 501 F2 = 301 ? 15j F3 = 20i + 10j ? 5k.Determine the resultant.
3
3 Differentiate center of gravity and centroid.
2
--- Content provided by FirstRanker.com ---
4 Explain the difference between angle of friction and angle of repose.3
5 State Parallel Axis theorem.
2
6 Find moment of inertia of a rectangular section about its base la'.
--- Content provided by FirstRanker.com ---
37 Differentiate kinematics and kinetics.
2
8 The rectilinear motion of a particle is defined by the displacement-time equation as
x = x0 + vo t +
--- Content provided by FirstRanker.com ---
Iat
2
. Find the displacement and velocity at time t = 2.58 while
2
--- Content provided by FirstRanker.com ---
xo = 300 mm, vo = 110 mm/sec and a = 0.55 m/s2
. 3
9 The kinetic energy of rotating body depends on and 2
10 Define the term natural frequency and angular frequency. 3
--- Content provided by FirstRanker.com ---
PART ? B (50 Marks)11 Neglecting thickness and mass of the beam, determine the support reactions on the
beam loaded as shown below. 10
KA
05104 ta5
--- Content provided by FirstRanker.com ---
2,1
4,
1
04
--- Content provided by FirstRanker.com ---
2.rn
dt
Akirft
3
--- Content provided by FirstRanker.com ---
,r4
12 Find the centroid of the shaded portion of the section shown in the fig below after a
square is cut out from it? 10
2
--- Content provided by FirstRanker.com ---
FirstRanker.com - FirstRanker's ChoiceCode No. 6007 / M
FACULTY OF ENGINEERING AND INFORMATICS
B.E. I ? Year (Main) Examination, June 2014
Subject : Engineering Mechanics
--- Content provided by FirstRanker.com ---
Time : 3 hoursMax. Marks : 75
Note: Answer all questions from Part-A. Answer any FIVE questions from Part-B.
PART A (25 Marks)
1 State the principle of Transmissibility?
--- Content provided by FirstRanker.com ---
22 Following forces act at a point P, F1 = 501 F2 = 301 ? 15j F3 = 20i + 10j ? 5k.
Determine the resultant.
3
3 Differentiate center of gravity and centroid.
--- Content provided by FirstRanker.com ---
24 Explain the difference between angle of friction and angle of repose.
3
5 State Parallel Axis theorem.
2
--- Content provided by FirstRanker.com ---
6 Find moment of inertia of a rectangular section about its base la'.3
7 Differentiate kinematics and kinetics.
2
8 The rectilinear motion of a particle is defined by the displacement-time equation as
--- Content provided by FirstRanker.com ---
x = x0 + vo t +I
at
2
. Find the displacement and velocity at time t = 2.58 while
--- Content provided by FirstRanker.com ---
2xo = 300 mm, vo = 110 mm/sec and a = 0.55 m/s
2
. 3
9 The kinetic energy of rotating body depends on and 2
--- Content provided by FirstRanker.com ---
10 Define the term natural frequency and angular frequency. 3PART ? B (50 Marks)
11 Neglecting thickness and mass of the beam, determine the support reactions on the
beam loaded as shown below. 10
KA
--- Content provided by FirstRanker.com ---
05104 ta52,
1
4,
1
--- Content provided by FirstRanker.com ---
042.rn
dt
Akirft
--- Content provided by FirstRanker.com ---
3,
r4
12 Find the centroid of the shaded portion of the section shown in the fig below after a
square is cut out from it? 10
--- Content provided by FirstRanker.com ---
2Code No. 6007 / M
- 2 -
13 Find the expression for the moment of inertia of a circle about its diametral axes.
14 A uniform square plate ABCD rests on one of the corners A an rough horizontal floor
--- Content provided by FirstRanker.com ---
having co-efficient of friction 0.23 and another corner B on rough vertical wall having co-efficient of friction 0.25. Find the inclination of the edge AB of the plate with horizontal.
15 a) Write a short note on fixed axis rotation of a rigid body.
b) Two blocks as shown in the fig. below slide down a 27
?
--- Content provided by FirstRanker.com ---
incline. If co-efficient offriction at all contiguous surfaces are 0.22. Determine the pressure between the
blocks. Take MA = 25 kg and MB=-30 kg.
16 Two blocks A and B are connected with an inextensible but flexible string as shown
below. Let the system is released from rest. Determine the velocity of the block A after
--- Content provided by FirstRanker.com ---
it has moved a distance of 0.5m. Assume the co-efficient of friction between block Aand the plane is 0.3. Mosses of the blocks are MA = 80 kg; MB = 150 kg.
17 In a particular SHM performed by a particle of mass m, the amplitude is 160cm and time
period of oscillation is 1 sec. Determine the time required by the particle to pass two
points at 1.4 m away and at 0.5m away from the central point of oscillation. Both the
--- Content provided by FirstRanker.com ---
points lie on the same side of this central point.FirstRanker.com - FirstRanker's Choice