The pitch of threads on a Jock nut in comparison to pitch of nut is

Machine Design
The pitch of threads on a Jock nut in comparison to pitch of nut is

Same

Finer

Very fine

Coarser

Same

Finer

Very fine

Coarser

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Machine Design
The centre to centre distance between two consecutive rivets in a row, is called

Margin

Pitch

Back pitch

Diagonal pitch

Margin

Pitch

Back pitch

Diagonal pitch

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Machine Design
The flank of the tooth is the

Surface of the tooth below the pitch surface

Width of the tooth measured along the pitch circle

Surface of the top of the tooth

Surface of the tooth above the pitch surface

Surface of the tooth below the pitch surface

Width of the tooth measured along the pitch circle

Surface of the top of the tooth

Surface of the tooth above the pitch surface

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Machine Design
Tearing resistance required to tear off the plate per pitch length is (where p = Pitch of rivets, d = Dia. of rivet hole, and σt = Permissible tensile stress for plate material)

(p - d) t.σt

p.d.σt

p.t.σt

(p - d) t.σt

p.d.σt

p.t.σt

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Machine Design
Elastic nut is a locking device in which

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

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

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 other end

Hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is stewed on the bolt causing a tight grip

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

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

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 other end

Hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is stewed on the bolt causing a tight grip

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Machine Design
In hydrodynamic bearings

The oil film pressure is generated only by the rotation of the journal

The oil film is maintained by supplying oil under pressure

Grease is used for lubrication

Do not require external supply of lubricant

The oil film pressure is generated only by the rotation of the journal

The oil film is maintained by supplying oil under pressure

Grease is used for lubrication

Do not require external supply of lubricant

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Machine Design

Machine Design The pitch of threads on a Jock nut in comparison to pitch of nut is

Machine Design The centre to centre distance between two consecutive rivets in a row, is called

Machine Design The flank of the tooth is the

Machine Design Tearing resistance required to tear off the plate per pitch length is (where p = Pitch of rivets, d = Dia. of rivet hole, and σt = Permissible tensile stress for plate material)

Machine Design Elastic nut is a locking device in which

Machine Design In hydrodynamic bearings

Machine Design
The pitch of threads on a Jock nut in comparison to pitch of nut is

Machine Design
The centre to centre distance between two consecutive rivets in a row, is called

Machine Design
The flank of the tooth is the

Machine Design
Tearing resistance required to tear off the plate per pitch length is (where p = Pitch of rivets, d = Dia. of rivet hole, and σt = Permissible tensile stress for plate material)

Machine Design
Elastic nut is a locking device in which

Machine Design
In hydrodynamic bearings