Download OU B-Tech First Year 2013 December 6007 Engineering Mechanics Question Paper

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

Note: Answer all questions from Part A. Answer any five questions from Part B.
PART ? A (25 Marks)
1. State and prove the parallelogram law.
(3)
2. State the Lami's theorem. (2)

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

3. Determine the force 'p' required for the block has to move towards right, if the co-
efficient of friction between block and surface is 0.3. (2)
4. Differentiate between static and dynamic friction. (2)
5. Acceleration of a particle is given by a = 6 -\ ?
-

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

iwherelvl is velocity derive the
expression for displacement of the particle.
(
3
)

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

6. State the Pappu's theorem.
(3)
7. Motion of the particle is given by s = t
3
? 12t

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

2
+ 40. Find out the acceleration of the
particle in 10 sec.
(3)
8. State D'Alember'ts principle. (2)

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

9. Derive the work-energy principle. (2)
10. Differentiate direct and oblique impact.
(
3
)

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

PART ? B (50 Marks)
11 (a) Find the reactions of the simply supported beam as shown in Fig. 1
(5)
Fig. 1
(b) Find the magnitude of `T' required for the beam to be in equilibrium, if it is resting on

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

smooth surfaces.
(5)
Fig 2
12. Locate the centroid of a non-linear plate as shown in Fig. 3.
(10)

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

.. 2
FirstRanker.com - FirstRanker's Choice
Code No. 6007
FACULTY OF ENGINEERING & INFORMATICS
B.E. I ? Year (Suppl.) (Common to all Branches) Examination, December 2013

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

Subject: Engineering Mechanics
Time: 3 Hours Max. Marks: 75
Note: Answer all questions from Part A. Answer any five questions from Part B.
PART ? A (25 Marks)
1. State and prove the parallelogram law.

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

(3)
2. State the Lami's theorem. (2)
3. Determine the force 'p' required for the block has to move towards right, if the co-
efficient of friction between block and surface is 0.3. (2)
4. Differentiate between static and dynamic friction. (2)

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

5. Acceleration of a particle is given by a = 6 -\ ?
-
iwherelvl is velocity derive the
expression for displacement of the particle.
(

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

3
)
6. State the Pappu's theorem.
(3)
7. Motion of the particle is given by s = t

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

3
? 12t
2
+ 40. Find out the acceleration of the
particle in 10 sec.

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

(3)
8. State D'Alember'ts principle. (2)
9. Derive the work-energy principle. (2)
10. Differentiate direct and oblique impact.
(

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

3
)
PART ? B (50 Marks)
11 (a) Find the reactions of the simply supported beam as shown in Fig. 1
(5)

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

Fig. 1
(b) Find the magnitude of `T' required for the beam to be in equilibrium, if it is resting on
smooth surfaces.
(5)
Fig 2

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

12. Locate the centroid of a non-linear plate as shown in Fig. 3.
(10)
.. 2
Code No. 6007
..2..

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

13. Find the force 'pl required for the wedge block as shown in Fig. 4 if the co-
efficient of friction at all the contact surfaces is 0.3. (10)
Fig 4
14. Calculate the moment of inertia for a hatched area about XX. (10)
Fig 5

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

15. Find out the acceleration of block 'B' required for the connecting bodies as shown
in Fig. 6 if the kinetic friction under 200 kN block is 0.2.
a/4= L
(10)
A

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

Fig 6
16. Determine the deformation of the spring as shown in Fig. 7, if 50 N weight of
block is releases from the rest. (Use work-energy principle) (10)
Fig 7
17 (a) State the principle of impulse momentum (2)

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

(b) A bullet weighing 0.3 N and moving with a velocity 660 nips, penetrates a wooden
block of weight 45 N and emerges with a velocity of 180 mps as shown. How long
the block moves?
(8)
FirstRanker.com - FirstRanker's Choice

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