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Machine Design

Machine Design
The pitch diameter is the __________ diameter of an external or internal screw thread.

Largest
None of these
Smallest
Effective

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Machine Design
Which process will increase the fatigue duration of parts?

Electroplating
De-carburisation
Shot-peening
Finishing and polishing

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Machine Design
Auto frettage is the method of

Calculating stresses in thick cylinders
Increasing the life of thick cylinders
Joining thick cylinders
Pre-stressing thick cylinders

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Machine Design
A key capable of tilting in a recess milled out in a shaft is known as

Woodruff key
Hollow saddle key
Flat saddle key
Feather key

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Machine Design
The washer is generally specified by its

Hole diameter
Outer diameter
Thickness
Mean diameter

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Machine Design
Antifriction bearings are

Sleeve bearings
Thin lubricated bearings
None of these
Hydrodynamic bearings

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