Machine Design
Which of the following statement is wrong for a connecting rod?

If Ixx > 4 Iyy, the buckling will occur about Y-axis
The most suitable section for the connecting rod is T-section
The connecting rod will be equally strong in buckling about X-axis and Y-axis, if Ixx = 4 Iyy
If Ixx < 4 Iyy, the buckling will occur about X-axis

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Machine Design
The fatigue stress concentration factor is defined as

The ratio of endurance limit with stress concentration to the endurance limit without stress concentration
The product of the endurance limits with and without stress concentration
The ratio of endurance limit without stress concentration to the endurance limit with stress concentration
All of these

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