Element of design
Previous year question paper with solutions for Element of design May-2017
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Question paper 1
SECTION –A
Q1.Fill in the Blanks:-
a. While selecting a material the designer should have knowledge about the…………..of the material.
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Read moreb. The design in which the designer makes minor changes and modification in existing design is called…..…
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Read morec. The fluctuation of speed and energy is controlled by………
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Read mored. In automobiles ………….. is used to connect the engine to the drive shaft.
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Read moree. Rigid coupling is used to connect two shafts which are perfectly …………
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Read moref. The main aim of……….is to minimize the variety so as to limit the number of models.
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Read moreg. Clutch operates on principle of ……………….
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Read moreh. The ……….into the shaft reduces the load carrying capacity of the shaft.
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Read morei. Flywheel is mounted on the ………………. of an engine.
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Read morej. The maximum shear stress theory is used for…………material.
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Read moreSECTION-B
Q2.Attempt any five questions.
i. Write a short note on Ergonomics.
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Read moreii. Discuss possible failure of riveted joints under different stresses.
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Read moreiii. Define the term: Standardization and Interchangeability.
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Read moreiv. Discuss various advantages and disadvantages of key joints over splined joints
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Read morev. What is flywheel? Explain the function of flywheel and state its applications
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Read morevi. What is caulking and fullering process? Explain with help of diagram
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Read morevii. What is design? What is the necessity of design?
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Read moreviii. What should be the length of the key 30mm wide you would use with a gearing drive 150mm diameter designed to operate at a torsional working stress of 120MN/m2 ?
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Read moreSECTION – C
Q3.Attempt any two Questions.
i. List and explain the consideration which influences the design.
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Read moreii. Define key. Give its various types with neat sketch
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Read moreiii. Design a knuckle joint to to connect two mild steel bars under a tensile load of 25KN. The design stress may be taken as 65 MPa in tension, 50 MPa in shear and 83 MPa in compression.
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Read moreiv. Design a flange coupling for a mild steel shaft transmitting 90 kW at 250 rpm. Allowable shear stress for mild steel = 40 MPa, for cast iron = 14 MPa and for bolt material = 30 MPa. The materials for shaft and key are same.
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