Machine Design
Plastic flow in ductile materials

Increases the seriousness of static loading stress concentration
Depends on other considerations
Has no effect on it
Lessens the seriousness of static loading stress concentration

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Machine Design
Which is correct statement? Stress concentration in cyclic loading is

Very serious in ductile materials and less serious in brittle materials
Very serious in brittle materials and less serious in ductile materials
Equally serious in both types of materials
Seriousness would depend on other factors

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Machine Design
Cap screws are

Slotted for a screw driver and generally used with a nut
Provided with detachable caps
Similar to small size tap bolts except that a greater variety of shapes of heads are available
Used to prevent relative motion between parts

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