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Machine Design

Machine Design
The washer is generally specified by its

Outer diameter
Thickness
Hole diameter
Mean diameter

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

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

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Machine Design
A compound cylinder with inner radius 50 mm and outer radius 70 mm is made by shrinking one cylinder on to the other cylinder, the junction radius is 60 mm and the junction pressure is 1.1 N/mm². The maximum hoop stress developed in the inner cylinder is

3.6 N/mm² tension
7.2 N/mm² compression
7.2 N/mm² tension
3.6 N/mm² compression

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Machine Design
The most important dimension in the design of a nut is

Inside diameter
Height
Outside diameter
Pitch diameter

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Machine Design
When a load W is applied suddenly on a bar of cross-sectional area A, the stress induced in the bar will be

W/2A
W/A
2W/A
3W/A

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Machine Design
The shock absorbing capacity of a bolt can be increased by

Making shank diameter equal to core diameter of thread
Grinding the shank
Tightening it properly
Increasing shank diameter

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