Machine Design
A pressure vessel is said to be a thick shell, if the ratio of wall thickness to its diameter is

None of these
Less than 1/10
Equal to 1/10
Greater than 1/10

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

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

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