AKTU B-Tech Last 10 Years 2010-2020 Previous Question Papers || Dr. A.P.J. Abdul Kalam Technical University
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Printed pages: 03
Paper Id: 4001
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Roll No:
B TECH
(SEM I) THEORY EXAMINATION 2017-18
ELEMENTS OF MECHANICAL ENGINEERING
Total Marks:70
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Time: 3 Hours
Note: Attempt all Sections. If require any missing data; then choose suitably.
SECTION - A
- Attempt all questions in brief. 2 x 7 = 14
- Differentiate centroid and center of gravity.
- Write down the equations of equilibrium for a body subjected to coplanar concurrent force system.
- What do you mean by statically determinate beams?
- Differentiate perfect and imperfect truss?
- Write down the statement of Zeroth law of thermodynamics.
- Define the COP of a refrigerator.
- What do you mean by dryness fraction?
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SECTION - B
- Attempt any three of the following: 7 x 3 = 21
- State and prove parallel axis theorem.
- Define truss. Write down the assumptions taken while analyzing a truss.
- Explain polar modulus and section modulus with the help of suitable example.
- Show that energy is a property of the system.
- Explain all the processes involved in Rankine cycle with the help of its T-S diagram.
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SECTION - C
- Attempt any one part of the following: 7x1=7
- Two spheres, each of weight 1000N and of radius 25 cm rest in a horizontal channel of weight 90 cm as shown in Fig-1. Find the reaction on the points of contacts A, B and C.
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- Two spheres, each of weight 1000N and of radius 25 cm rest in a horizontal channel of weight 90 cm as shown in Fig-1. Find the reaction on the points of contacts A, B and C.
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