Monday, December 27, 2021

Dr.A.P.J.Abdul Kalam University BE Mechanical Machine Design [ME-802] Aug-Sep 2020 Question Paper

Dr.A.P.J.Abdul Kalam University Old Question Papers

Bachelor of Engineering

Eighth Semester Main Examination, Aug-Sep 2020

Machine Design [ME-802]

Branch-ME

Time: 3:00 Hrs Max Marks 70

Note : (i) Attempt any five questions out of eight.

(ii) All questions carry equal marks.

Q.1 What are the advantages and disadvantages of flat belt drive?

Q.2 What is difference between double and herringbone helical gears? State advantages of these gear also.

Q.3 Compare the stress distribution in an thin and thick walled pressure vessel.

Q.4 Discuss the construction of wire rope with the help of net sketch?

Q.5 What is optimization? Discuss different optimization techniques.

Q.6 Determine the principal dimensions of cylinder for a vertical four stroke compression engine from the following data: Brake power : 5 kW Speed : 1000 rpm indicated mean effective pressure : 0.35 MPa mechanical efficiency : 85%

Q.7 Design a cast irori protected flange coupling to connect two shafts of 36 mm diameter transmitting 25 kW at 950 rpm. The overload capacity is 1.3 times the average torque. The bolts and keys are made of C 20 steel and flanges are made of -FG250.

Q.8 Determine the module and face width of a helical gear tooth for a helical gear pair to transmit a power of 20 kW from a shaft rotating at a speed of 1200 rpm to a parallel shaft to be 360 rpm maintaining a Centre distances of 180 mm.

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Shiva

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