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Topic wise Paper Solution

Examination: 2017 SUMMER
Que.No Question/Problem marks
Q 1a)(ii)

What is a cotter joint? State any four applications of a cotter joint

8

Q 2 a )

Design a knuckle joint to transmit 150 KN. The design stresses may be taken as 75 MPa in tension, 60 MPa in shear and 150 MPa in compression.

8

Q 2c)(i)

Why are bushes of softer material inserted in the eyes of levers?

8

Q 3 b )

Design a foot brake lever from the following data: Length of lever from C.G. of the spindle to the point of application of the load = 1 meter. Max. load on the foot plate = 800 N Overhang from the nearest bearing = 100 mm Permissible tensile and shear str

4

Examination: 2017 WINTER
Que.No Question/Problem marks
Q 1 f )

Give two applications of knuckle joint.

2

Q 2 a )

Explain various failures to be considered in designing a cotter joint along with the necessary sketches and strength equations.

8

Q 3 )

Fig.1Show of hacksaw The belt is assembled with tensoion

8

Examination: 2016 SUMMER
Que.No Question/Problem marks
Q 1 ii )

Write the design procedure for turn buckle. (Any four steps)

4

Q 2a)(ii)

Why taper is provided on cotter ? State recommended values of taper.

8

Q 2 b )

Draw neat sketch showing the details of cotter joint. State strength equations for each component with suitable failure cross-sectional area.

8

Q 3 b )

Draw a neat sketch of bell crank lever. Enlist steps in designing the bell crank lever

4

Examination: 2016 WINTER
Que.No Question/Problem marks
Q 1a)(ii)

Write the design procedure of knuckle joint.

4

Q 2 a )

Explain with the help of neat sketches three basic types of lever. State one application of each type.

8

Q 2 b )

Explain with the help of neat sketches, the design procedure of a square sunk key

8

Q 2c)(ii)

State two applications each of cotter joint and knuckle joint.

8

Q 3 b )

Design single cotter joint to transmit 200 kN. Allowable stresses for the material are 75 MPa in tension and 50 MPa in shear.

4

Examination: 2015 WINTER
Que.No Question/Problem marks
Q 1a)(ii)

Differentiate between Knuckle joint and Cotter joint................

4

Q 3 b )

Design an offset link for a load of 1000 N. Maximum permissible stress in tension for link material is 60 N/mm2. Assume b = 3t for rectangular cross section of the link.

4