Download GTU BE/B.Tech 2019 Winter 3rd Sem New 2130103 Analysis Of Mechanisms And Machine Elements Question Paper

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Subject Code: 2130103

GUJARAT TECHNOLOGICAL UNIVERSITY

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Instructions:

1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

1. (a) Define: (i) Linkage (ii) DOF (iii) Mechanism [03]
   

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   (b) List different types of kinematic pairs with neat sketch. [04]
   (c) With help of neat sketches explain inversions of four-bar chain mechanism. [07]
2. (a) Define Coriolis components of acceleration. When it occurs? [03]
   (b) With help of sketch explain Kennedy’s theorem. [04]
   (c) Explain Stress-Strain relationship for ductile materials. [07]
   

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   OR
   (c) Explain Whitworth quick return mechanism with the help of neat sketch. [07]
3. (a) What information do you get by Velocity & Acceleration diagrams? [03]
   (b) What is D’ Almbert’s principle? Explain it in detail. [04]
   (c) Briefly explain Klein’s construction. [07]
   

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   OR
   (a) Define: (i) Poisson ratio (ii) Crushing stress (iii) Impact stress [03]
   (b) What is superposition principle theorem for static force analysis ? [04]
   (c) A solid circular shaft is subjected to a bending moment of 3000 N-m and a torque of 10000 N-m. The shaft is made of 45 C 8 steel having ultimate tensile stress of 700 MPa and a ultimate shear stress of 500 MPa. Factor of safety = 6, determine the diameter of the shaft. [07]
4. (a) Define: (i) Spindle (ii) Axle (iii) Shaft [03]
   

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   (b) Enlist physical properties of material and explain any two in detail. [04]
   (c) Explain caulking and fullering with neat sketch. [07]
   OR
   (a) Define: (i) Factor of safety (ii) Volumetric strain (iii) Lateral strain [03]
   (b) What is principle of virtual work? Explain it in detail. [04]
   

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   (c) Derive an expression for the inertia force due to reciprocating mass in reciprocating engine, neglecting mass of the connecting rod. [07]
5. (a) What is the Strength and Efficiency of the riveted joint? [03]
   (b) Briefly explain Electric arc welding. [04]
   (c) Classify Butt joint & Lap joint with sketch. [07]
   OR
   

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   (a) Define: (i) Margin (ii) Back pitch (iii) Diagonal pitch [03]
   (b) Write difference between Welded joints and Riveted joints. [04]
   (c) Classify Pressure vessels. Derive equation for Thin cylindrical shell subjected to an internal pressure. [07]