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Machine Design

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

Pitch
Diagonal pitch
Margin
Back pitch

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Machine Design
The stretching in a belt can be controlled by __________ the stress in the belt.

None of these
Increasing
Both A and B
Reducing

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Machine Design
In case of pressure vessels having open ends, the fluid pressure induces

None of these
Longitudinal stress
Shear stress
Circumferential stress

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Machine Design
Basic hole is one

Whose upper deviation is zero
Does not exist
Whose lower as well as upper deviations are zero
Whose lower deviation is zero

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Machine Design
The ratio of driving tensions for flat belts, neglecting centrifugal tension, is (where T₁, and T₂ = Tensions on the tight and slack sides of belt respectively, μ = Coefficient of friction, between the belt and pulley, and θ = Angle of contact)

T₁/T₂ = μθ
log (T₁/T₂) = μθ
T₁/T₂ =eμθ
T₁/T₂ = log μθ

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Machine Design
A riveted joint is a __________ fastening.

Permanent
Either A or B
Temporary
None of these

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