ME8593 DME 2marks
Anna University Regulation 2017 MECH ME8593 DME 2marks & 16marks for all 5 units are provided below. ME8593 DME Short answers, Question Bank for DESIGN OF MACHINE ELEMENTS Engineering are listed down for students to make perfect utilization and score maximum marks with our study materials.
ME8593 DME DESIGN OF MACHINE ELEMENTS
1. What is ‘Adaptive design and Optimum design?
Adaptive design: It is a design process where a new product is developed just by making small changes to the existing product. Optimum design: Optimization is the process of maximizing a desired quantity or minimizing an undesired one.
2. List some factors that influence machine design.
Strength, stiffness, surface finish, tolerances, manufacturability, ergonomics and aesthetics, working atmosphere, cost, safety and reliability.
3. Describe material properties hardness stiffness and resilience.
Hardness: It is the ability of the material to resist scratching and indentation
Stiffness: It is the ability of the material to resist deformation under loading
Resilience: It is the ability of the material to resist absorb energy and to resist shock and impact load.
4. What is interchangeable manufacture?
Manufacturing process in which the produced parts that go in to assembly may be Selected at random from a large number of plates.
5. What are unilateral and bilateral tolerances?
A unilateral tolerance is tolerance in which variation is permitted only in one direction from, the specified direction. Eg- 1800+0.060/-0.060Bilateral tolerance is tolerance in which variartion is permitted in both direction from the specified direction. eg- 1800 +0.060/-0.060
13. Explain notch sensitivity. State the relation between stress concentration factor, fatigue stress concentration factor and notch sensitivity.
Notch sensitivity (q) is the degree to which the theoretical effect of stress
concentration is actually reached. The relation is, Kf = 1 + q (Kt-1)
14. What are the methods used to improve fatigue strength?
• Cold working like shot penning, burnishing.
• Heat treatment such as induction hardening, case hardening, nitrating
• Pre-stressing
ME8593 DME Unit 1 2marks & 16marks – Download Here
ME8593 DME Unit 2 2marks & 16marks – Download Here
ME8593 DME Unit 3 2marks & 16marks – Download Here
ME8593 DME Unit 4 2marks & 16marks – Download Here
ME8593 DME All Units 2marks & 16marks – Download Here
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