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WorksheetsColumn Mechanics Quiz
Total questions: 20
Worksheet time: 10mins
A column is a structural member subjected to
Tensile load
Shear load
Axial compressive load
Bending load
A strut is a member which may be
Only vertical
Only horizontal
Vertical, horizontal or inclined
Curved only
Columns generally fail due to
Shear
Torsion
Buckling
Fatigue
A column with slenderness ratio less than 12 is known as
Long column
Intermediate column
Short column
Elastic column
Short columns usually fail by
Buckling
Crushing
Torsion
Fatigue
Long columns mainly fail due to
Crushing
Shear
Buckling
Bending stress
Slenderness ratio is defined as
Length / area
Effective length / radius of gyration
Area / length
Stress / strain
A column with slenderness ratio more than 12 is known as
Long column
Intermediate column
Short column
Elastic column
Effective length of a column hinged at both ends is
L
2L
L/2
√2 L
Effective length of a column fixed at both ends is
L
0.5L
2L
1.5L
Effective length of a column fixed at one end and free at the other end is
L
0.7L
2L
L/2
Euler’s critical load is given by
π²EI / L
πEI / L²
π²EI / L²
EI / L²
Crushing load is calculated using
Euler’s formula
Rankine’s formula
σc × Area
π²EI/L²
Rankine’s formula is used for
Short columns only
Long columns only
Intermediate columns
All types of columns
Rankine’s formula combines the effect of
Buckling and shear
Crushing and buckling
Torsion and bending
Shear and bending
For a circular column, radius of gyration is
D/4
D/2
D/√8
D/√16
Hollow circular columns are preferred because
They are cheaper
They have higher buckling strength
They are easy to cast
They reduce height
I-section columns are economical because
Material is near neutral axis
Material is away from neutral axis
Less area
Easy fabrication
A single I-section without cover plate is mostly used for
Very short columns
Axially loaded long columns
Beams
Ties
Which of the following factors affects the buckling load on column?
Effective length
Cross section of the column
Modulus of Elasticity
All of the above
