Download OU B-Tech First Year 2013 June 2007 Engineering Mechanics Question Paper

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Max. Marks : 75
Note: Answer all questions from Part-A. Answer any FIVE questions from Part-B.
PART ? A (25 Marks)
1. State the Triangular law for concurrent co-planner force system. (2)
2. Write the static equilibrium equations for non-concurrent co-planner force system. (2)

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3. Define the angle of friction. (2)
4. State the parallel axis theorem.
(3)
5. Derive the impulse momentum equation.
(3)

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6. State the PAPPU's theorems.
(3)
7. The motion of a particle is given by the equations
(
3

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)
S = V
I
? 12t
2

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? 40, where s is displacement in meter and t is sec. Determine the
acceleration of particle after 2 sec.
8. State D' Alembert's principle. (2)
9. Derive the mass moment of inertia for a rectangular place with thickness t and
density S.

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(3)
10. Derive the work-energy principle. (2)
PART ? B (50 Marks)
11.a) The moment of a certain force 'F' is in clockwise about '0' and 90N-m counter
clockwise about B. If is moment about 'A' is zero. Determine the force,

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(
5
)
1
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Code No. 2007
FACULTY OF ENGINEERING and INFORMATICS
B.E. I ? Year (Common to All) (Main) Examination, June 2013
Subject : Engineering Mechanics
Time : 3 hours

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Max. Marks : 75
Note: Answer all questions from Part-A. Answer any FIVE questions from Part-B.
PART ? A (25 Marks)
1. State the Triangular law for concurrent co-planner force system. (2)
2. Write the static equilibrium equations for non-concurrent co-planner force system. (2)

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3. Define the angle of friction. (2)
4. State the parallel axis theorem.
(3)
5. Derive the impulse momentum equation.
(3)

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6. State the PAPPU's theorems.
(3)
7. The motion of a particle is given by the equations
(
3

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)
S = V
I
? 12t
2

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? 40, where s is displacement in meter and t is sec. Determine the
acceleration of particle after 2 sec.
8. State D' Alembert's principle. (2)
9. Derive the mass moment of inertia for a rectangular place with thickness t and
density S.

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(3)
10. Derive the work-energy principle. (2)
PART ? B (50 Marks)
11.a) The moment of a certain force 'F' is in clockwise about '0' and 90N-m counter
clockwise about B. If is moment about 'A' is zero. Determine the force,

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(
5
)
1
7SAN

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9
5

12, Locate the Centroin of the hatcher plate about the axis as shown in fig.3.
I

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LicCooi
-
3
Code No. 2007
- 2

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-
11.b) Find the resultant for concurrent co-planar force system as shown in fig.2.
7
"
Saki

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13. A 100N cylinder shown in fig.4 is held at rest by a weight suspended froma chord
wrapped around the cylinder if the sliping impends between the cylinder and the
inclined, determine the value of `P' & also the co-efficient of Frichon.
(10)
14. Calculate the product of inertia for a shaded area as shown in fig.5 with respect to

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given x ? y axis.
(10)
y
14-- 6cm
-iv

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.

Fig-5
(
5

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)
(10)
X
.. 3
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Code No. 2007
FACULTY OF ENGINEERING and INFORMATICS
B.E. I ? Year (Common to All) (Main) Examination, June 2013
Subject : Engineering Mechanics
Time : 3 hours

--- Content provided by FirstRanker.com ---

Max. Marks : 75
Note: Answer all questions from Part-A. Answer any FIVE questions from Part-B.
PART ? A (25 Marks)
1. State the Triangular law for concurrent co-planner force system. (2)
2. Write the static equilibrium equations for non-concurrent co-planner force system. (2)

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3. Define the angle of friction. (2)
4. State the parallel axis theorem.
(3)
5. Derive the impulse momentum equation.
(3)

--- Content provided by‌ FirstRanker.com ---

6. State the PAPPU's theorems.
(3)
7. The motion of a particle is given by the equations
(
3

--- Content provided by⁠ FirstRanker.com ---

)
S = V
I
? 12t
2

--- Content provided by​ FirstRanker.com ---

? 40, where s is displacement in meter and t is sec. Determine the
acceleration of particle after 2 sec.
8. State D' Alembert's principle. (2)
9. Derive the mass moment of inertia for a rectangular place with thickness t and
density S.

--- Content provided by‌ FirstRanker.com ---

(3)
10. Derive the work-energy principle. (2)
PART ? B (50 Marks)
11.a) The moment of a certain force 'F' is in clockwise about '0' and 90N-m counter
clockwise about B. If is moment about 'A' is zero. Determine the force,

--- Content provided by‍ FirstRanker.com ---

(
5
)
1
7SAN

--- Content provided by‌ FirstRanker.com ---

9
5

12, Locate the Centroin of the hatcher plate about the axis as shown in fig.3.
I

--- Content provided by‍ FirstRanker.com ---

LicCooi
-
3
Code No. 2007
- 2

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-
11.b) Find the resultant for concurrent co-planar force system as shown in fig.2.
7
"
Saki

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13. A 100N cylinder shown in fig.4 is held at rest by a weight suspended froma chord
wrapped around the cylinder if the sliping impends between the cylinder and the
inclined, determine the value of `P' & also the co-efficient of Frichon.
(10)
14. Calculate the product of inertia for a shaded area as shown in fig.5 with respect to

--- Content provided by⁠ FirstRanker.com ---

given x ? y axis.
(10)
y
14-- 6cm
-iv

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.

Fig-5
(
5

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)
(10)
X
.. 3
Code No. 2007

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3
15. Derive the expression for the acceleration of a block as shown in fig if (10)
Case 1: is a frictionless pully
Case 2 : friction pully
ON2 > WO

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16. A cahin of length 'Ll and wesling w/m-run is released from rest on a smooth table
when it is (10)
Vi-
1.

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.......*

t...--- b
In the position as shown in fig. Determine the velocity of the chain while lost link
leaves the table.

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17. Write a short note on
a) Compound pendulum (4)
b) Rectilinear & curvilinear motion
(3)
c) Radius of gyration and instantaneous centre of rotation

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(3)
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