Firstranker's choice
Printed Pages: 7
--- Content provided by FirstRanker.com ---
(Following Paper ID and Roll No. to be filled in your Answer Book)
Paper ID :140102
Roll No.
B. Tech.
(SEM. I) THEORY EXAMINATION, 2015-16
--- Content provided by FirstRanker.com ---
ENGINEERING MECHANICS
[Time:3 hours]
[Total Marks:100]
Section-A
Q.1 Attempt all parts. All parts carry equal marks. Write answer of each part in short (2x10=20)
--- Content provided by FirstRanker.com ---
- What is static equilibrium? Write down sufficient condition of static equilibrium for a Coplanar concurrent and non-concurrent force system.
- Write any four engineering applications of friction.
- Differentiate between perfect and imperfect truss.
- What do you understand by point of contra- flexure?
- State perpendicular axis theorem.
--- Content provided by FirstRanker.com ---
NME-102/35000
Note: Attempt any five questions from this section. (10 x 5 = 50)
Q2. Two identical rollers, each of weights 1000 N are supported by an inclined plane as shown in fig.1. Assuming smooth surfaces, find the reactions induced at the points of supports.
--- Content provided by FirstRanker.com ---
Q5. For the semi-annular area shown in fig. 4, determine the ratio of a to b so that y = -b / 6
P.T.C
parallel plates A and B as shown in fig. 5. At the instant A moves to the right with a velocity of 1.2 m/s and B moves to the left with a velocity of 0.6 m/s. Calculate the velocity of center of wheel and the angular velocity of wheel. Take r1 = 120 mm and r2 = 360 mm.
--- Content provided by FirstRanker.com ---
not exceed 1º per metre length and the maximum torsional shear stress is limited to 40 N/mm². Assume modulus of rigidity to be 80 N/mm².
9. Derive the expression for mass moment of inertia of a sphere about centroidal axis.
Section-C
Note: Attempt any two questions from this section.(15x2=30)
10. Determine the moment of inertia about x-x and y-y axis passing through the centroid of the unsymmetrical I-section as shown in fig. 6
--- Content provided by FirstRanker.com ---
?.?.?.
11. Derive the Bending equation. A cast iron water main 500 mm external diameter and 25 mm thickness is running full and is simply supported 30 m apart. Determine the bending stress produced in the material if the specific weight of cast iron and water are 18500 kG/m³ and 1000 kG/m³ respectively.
12. For the beam shown in fig.7 draw the shear force and bending moment diagram. Determine the position of maximum bending moment. Also determine the point of contra-flexure if any.
--- Content provided by FirstRanker.com ---
NME-102/35000
--- Content provided by FirstRanker.com ---
This download link is referred from the post: AKTU B-Tech Last 10 Years 2010-2020 Previous Question Papers || Dr. A.P.J. Abdul Kalam Technical University