# Elements of Design 5th Sem/9326/May 2015 Automobile Diploma Paper

## Elements of Desgin 5th Sem May 2015 Automobile Diploma Paper

### Section a Elements of Desgin 5th Sem May 2015 Automobile Paper

The material commonly used for shaft is ______________

____________ fit is a form of tight fit.

The ability of a material to be converted into sheets is called __________

Two intersecting shafts can be connected by __________ gears

The ratio of no. Of teeth to pitch circle diameter is called ______________

The tapper on a rectangular sunk key is ______________

Clutch operates on a principle of _____________

Fluctuation of speed and energy is controlled by _____________

Flange coupling is a type of ____________

_________ type of flange coupling is used in ships turbine.

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### Section B :Elements of Desgin 5th Sem May 2015 Automobile Paper

Procedure of designing the machine elements.

Properties of material Elasticity, Plasticity, Toughness, Strength, Ductility.

Classification of keys and couplings.

Basic requirements in designing a machine component.

Gear Addendum, Dedendum, Backlash, Module, Diametral pitch.

Different joints used in welding.

Protective type flange coupling and show its design measurements and parts.

Shaft is required to transmit a power of 100 KW at 120 r.p.m. What is the diameter of shaft if torsional stress is 60 MPa.

Rectangular sunk key 24 mm wide, 16 mm thick and 100 mm long is required to transmit 1000 N-m torque from a 120 mm diameter shaft. Calculate the induced shear and crushing stresses in the key.

## Elements of Desgin 5th Sem May 2015 Automobile Diploma Paper

### Section c :-Elements of Desgin 5th Sem May 2017 Diploma Paper

Explain the consideration which influences the design.

Key and its various types with neat sketch .

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.

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.