Test: Struts & Columns - 1 - Mechanical Engineering MCQ

All of the following statements about kern are correct, except

The ratio of the core of a circular section to the area of circular section when used as a short column is

A steel column of rectangular section (15 mm × 10 mm) and length 1.5 m is simply supported at both ends. Assuming modulus of elasticity, E = 200 GPa for steel, the critical axial load (in kN) is _____ (correct to two decimal places)

Euler’s formula gives 5 to 10% error in crippling load as compared to experimental results in practice due to

The ratio of critical loads a column can carry when it end conditions are best and worst is

For the case of a slender column of length l, and flexural rigidity E₁ built-in at its base and free at the top, the Euler’s critical buckling load is

For a long slender column of uniform cross-section, the ratio of critical buckling load for the case with both ends clamped to the ease with both ends hinged is 

The column of length 240 cm, area of cross- section 20 cm 2, moment of inertia 1_XX = 720 cm⁴ and I_yy = 80 cm⁴ is subject to buckling load. The data corresponds to slenderness ratio

The slenderness of a column is zero when

A column of rectangular cross-section (I_XX > I_YY) is subject to an axial load. What is the axis about which the column will have atendency to buckle?

The minimum axial compressive load, P, required to initiate buckling for a pinned-pinned slender column with bending stiffness EI and length L is 

If the length of a column is double, the criteria load becomes