 # Mechanical Engineering Objective Questions { Strength of Materials }

64. The region of the cross-section of a column M which compressive load may be applied without prodtking any tensile stress, is known as the core of the cross-section. In circular columns the radius of the core, is

65.  In rectangular columns (cross-section b x h), the core is a

66.  A column is said to be of medium size if its slenderness ratio is between

67. Columns of given length, cross-section and material have different values of buckling loads for different end conditions. The strongest column is one whose

68. The length of a column, having a uniform circular cross-section of 7.5 cm diameter and whose ends are hinged, is 5 m. If the value of E for the material is 2100 tonnes/cm2, the permissible maximum crippling load will be

69.  Rankine-Golden formula accounts for direct as well as buckling stress and is applicable to

70. The equivalent length of a column fixed at both ends, is

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