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Machine Design

Machine Design
The longitudinal stress is __________ of the circumferential stress.

One-half
Double
Two-third
Three-fourth

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Machine Design
A single strap butt joint is always in __________ shear.

Single
Triple share
Double
None of these

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Machine Design
Rivets are generally specified by

Thickness of plates to be riveted
Nominal diameter
Diameter of head
Length of rivet

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Machine Design
According to Indian standards, the diameter of rivet hole is made larger than the basic size of rivet by

0.5 mm up to rivet diameter of 24 mm
2 mm for rivet diameter from 39 mm to 48 mm
1 mm for rivet diameter from 27 mm to 36 mm
All of these

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Machine Design
For a shoe brake, the equivalent coefficient of friction is equal to (where μ = Actual coefficient of friction, and θ = Semi-block angle)

4μ sinθ/(θ + sinθ)
4μ sinθ/(2θ + sin 2θ)
2μ sinθ/(θ + sinθ)
μ sinθ/(2θ + sin 2θ)

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Machine Design
A column is known as a long column if the slenderness ratio is

50
40
70
100

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