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Machine Design

Machine Design
The size of a gear is usually specified by

Diametral pitch
Pressure angle
Pitch circle diameter
Circular pitch

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Machine Design
According to I.B.R., the distance between the rows of rivets, for equal number of rivets in more than one row for lap joint or butt joint (chain riveting) shall not be less than

1.5 d
2.5 d
2 d
d

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Machine Design
Wahl's stress factor __________ very rapidly as the spring index decreases.

Decreases
Increases
Remain same
None of these

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Machine Design
The ratio of endurance limit in shear to the endurance limit in flexure is

0.4
0.33
0.5
0.55

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Machine Design
A connecting rod is designed as a

All of these
Short column
Long column
Strut

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Machine Design
Stress concentration in static loading is more serious in

Brittle materials
Equally serious in both cases
Depends on other factors
Ductile materials

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