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Mechanical Engineering Exam 2020

The document is a mechanical engineering exam covering machine design topics. It contains two parts: Part A with 5 short answer questions about machine design processes, stress theories, direct vs bending stress, adaptive design examples and mechanical metal properties. Part B contains 3 longer questions: determining dimensions of a press frame under a load capacity using a safety factor, calculating stress at a point on a shaft given bending, torque and axial loads, and discussing factors that influence machine design.

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Arun Pravin AP
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32 views1 page

Mechanical Engineering Exam 2020

The document is a mechanical engineering exam covering machine design topics. It contains two parts: Part A with 5 short answer questions about machine design processes, stress theories, direct vs bending stress, adaptive design examples and mechanical metal properties. Part B contains 3 longer questions: determining dimensions of a press frame under a load capacity using a safety factor, calculating stress at a point on a shaft given bending, torque and axial loads, and discussing factors that influence machine design.

Uploaded by

Arun Pravin AP
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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St.

PETER’S COLLEGE OF ENGINEERING AND TECHNOLOGY


B.E./B.Tech. DEGREE EXAMINATION, AUG - 2020
Fifth Semester
Mechanical Engineering
UNIT TEST I - Retest
ME8593-DESIGN OF MACHINE ELEMENTS
Time: Two hours. Maximum: 50 marks
Date:
Answer ALL questions.
PART –A (5 X 2 =10)

1. What are the steps in machine design process?


2. Write note on maximum shear stress theory verses maximum strain energy theory.
3. Distinguish clearly between direct stress and bending stress.
4. What is adaptive design? Where it is used? Give examples
5. List any four mechanical properties of metals.
PART-B (8X1+16X2=40)
6. The C frame of 100 KN capacity press is shown in figure 2. The material of the frame is
grey cast iron and the factor of safety is 3. Determine the dimensions of the frame.

7. A shaft as shown in figure is subjected to a bending load of 3KN, pure torque of 1000 N-m
and an axial pulling force of 15 KN calculate the stress at A.

8. Discuss in detail about the factors influencing machine design

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