The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80° for

Machine Design
The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80° for

Ease of manufacture

Fullering and caulking

Reducing stress concentration

Safety

Ease of manufacture

Fullering and caulking

Reducing stress concentration

Safety

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Machine Design
In the case of an elastic bar fixed at upper end and loaded by a falling weight at lower end, the shock load produced can be decreased by

Decreasing the cross-section area of bar

Would depend upon other factors

Remain unaffected with cross-section area

Increasing the cross-section area of bar

Decreasing the cross-section area of bar

Would depend upon other factors

Remain unaffected with cross-section area

Increasing the cross-section area of bar

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Machine Design
The creep in the belt is due to

Unequal extensions in the belt due to tight and slack side tensions

Effect of temperature on belt

Stresses beyond elastic limit of belt material

Material of belt

Unequal extensions in the belt due to tight and slack side tensions

Effect of temperature on belt

Stresses beyond elastic limit of belt material

Material of belt

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Machine Design
Split nut is a locking device in which

Through slots are made at top and a cotter pin is passed through these and a hole in the bolt, and cotter pin splitted and bent in reverse direction at the other end

A slot is cut partly in middle of nut and then slot reduced by tightening screw

A hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is screwed on the bolt causing a tight grip

One smaller nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming

Through slots are made at top and a cotter pin is passed through these and a hole in the bolt, and cotter pin splitted and bent in reverse direction at the other end

A slot is cut partly in middle of nut and then slot reduced by tightening screw

A hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is screwed on the bolt causing a tight grip

One smaller nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming

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Machine Design
The railway carriage couplings have

Buttress threads

Acme threads

Knuckle threads

Square threads

Buttress threads

Acme threads

Knuckle threads

Square threads

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Machine Design
A special case of ductility which permits materials to be rolled or hammered into thin sheets, is called

Malleability

Ductility

Elasticity

Plasticity

Malleability

Ductility

Elasticity

Plasticity

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Machine Design

Machine Design The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80° for

Machine Design In the case of an elastic bar fixed at upper end and loaded by a falling weight at lower end, the shock load produced can be decreased by

Machine Design The creep in the belt is due to

Machine Design Split nut is a locking device in which

Machine Design The railway carriage couplings have

Machine Design A special case of ductility which permits materials to be rolled or hammered into thin sheets, is called

Machine Design
The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80° for

Machine Design
In the case of an elastic bar fixed at upper end and loaded by a falling weight at lower end, the shock load produced can be decreased by

Machine Design
The creep in the belt is due to

Machine Design
Split nut is a locking device in which

Machine Design
The railway carriage couplings have

Machine Design
A special case of ductility which permits materials to be rolled or hammered into thin sheets, is called