21. According to Euler's column theory, the crippling load for a column of length (l) fixed at both ends is __________ the crippling load for a similar column hinged at both ends.
22. When a thin cylindrical shell is subjected to an internal pressure, the volumetric strain is (where ε1 = Hoop strain and ε2 = Longitudinal strain)
23. The radius of the Mohr’s circle in the given figure is equal to
24. According to Euler's column theory, the crippling load of a column is given by $${\text{p}} = \frac{{{\pi ^2}{\text{E}}I}}{{{\text{C}}{l^2}}}.$$ In this equation, the value of ‘C’ for a column with both ends hinged, is
25. A double strap butt joint with equal straps is
26. The product of the tangential force acting on the shaft and its distance from the axis of the shaft (i.e. radius of shaft) is known as
27. Two shafts 'A' and 'B' have the same material. The shaft 'A' is solid of diameter 100 mm. The shaft 'B' is hollow with outer diameter 100 mm and inner diameter 50 mm. The torque transmitted by shaft 'B' is __________ as that of shaft 'A'.
28. Two closely coiled helical springs 'A' and 'B' are equal in all respects but the diameter of wire of spring 'A' is double that of spring 'B' The stiffness of spring 'B' will be __________ that of spring 'A'
29. When a column is subjected to an eccentric load, the stress induced in the column will be
30. A beam encastered at both the ends is called
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