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Machine Design

Machine Design
The size of a gear is usually specified by

Circular pitch
Pitch circle diameter
Diametral pitch
Pressure angle

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Machine Design
The cam follower generally used in automobile engines is

Spherical faced follower
Roller follower
Flat faced follower
Knife edge follower

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Machine Design
A connecting rod is designed as a

All of these
Short column
Strut
Long column

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Machine Design
In skew bevel gearing, the axes of shafts are

None of these
Non-intersecting and non-parallel and the teeth are straight
Non-intersecting and nonparallel and the teeth are curved
Intersecting and the teeth are curved

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Machine Design
A plate with an elliptical hole in the centre, with semi-major axis (a) perpendicular to the direction of loading and semi-minor axis (b) along the direction of loading, is subjected to a pull P. The maximum stress induced at the edge of the hole is equal to (where σ = Stress for a plate with no hole i.e. nominal stress)

σ [1 + (2a/b)]
σ [1 + (b/2a)]
σ [1 + (b/3a)]
σ [1 + (3a/b)]

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Machine Design
The resultant axial load on a bolt depends upon

All of these
Relative elastic yielding of the bolt and the connected members
Initial tension due to tightening of the bolt
External load applied

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