According to I.B.R., the efficiency of a double riveted butt joint with double cover straps of equal width should be

Machine Design
According to I.B.R., the efficiency of a double riveted butt joint with double cover straps of equal width should be

45 to 60%

63 to 70%

70 to 83%

80 to 90%

45 to 60%

63 to 70%

70 to 83%

80 to 90%

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Machine Design
The distribution of the forces along the length of key fitted in a shaft

Varies exponentially, being more near the torque-input end

Varies exponentially, being less near the torque-input end

Varies linearly

Is uniform throughout

Varies exponentially, being more near the torque-input end

Varies exponentially, being less near the torque-input end

Varies linearly

Is uniform throughout

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Machine Design
Rankine's theory is used for

Brittle materials

Ductile materials

Plastic materials

Elastic materials

Brittle materials

Ductile materials

Plastic materials

Elastic materials

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Machine Design
Elastic 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 other end

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

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

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

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

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

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Machine Design
In worm gears, the angle between the tangent to the pitch helix and an element of the cylinder, is known as

Pitch lead angle

Pressure angle

Helix angle

None of these

Pitch lead angle

Pressure angle

Helix angle

None of these

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Machine Design
The rolling contact bearings as compared to sliding contact bearings have

Accuracy of shaft alignment

Small overall dimensions

All of these

Low starting and low running friction except at very high speeds

Accuracy of shaft alignment

Small overall dimensions

All of these

Low starting and low running friction except at very high speeds

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Machine Design

Machine Design According to I.B.R., the efficiency of a double riveted butt joint with double cover straps of equal width should be

Machine Design The distribution of the forces along the length of key fitted in a shaft

Machine Design Rankine's theory is used for

Machine Design Elastic nut is a locking device in which

Machine Design In worm gears, the angle between the tangent to the pitch helix and an element of the cylinder, is known as

Machine Design The rolling contact bearings as compared to sliding contact bearings have

Machine Design
According to I.B.R., the efficiency of a double riveted butt joint with double cover straps of equal width should be

Machine Design
The distribution of the forces along the length of key fitted in a shaft

Machine Design
Rankine's theory is used for

Machine Design
Elastic nut is a locking device in which

Machine Design
In worm gears, the angle between the tangent to the pitch helix and an element of the cylinder, is known as

Machine Design
The rolling contact bearings as compared to sliding contact bearings have