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WorksheetsQuiz on Strength of Materials
Total questions: 25
Worksheet time: 19mins
Stress is defined as:
Force per unit area
Deformation per unit length
Load per unit length
Strain energy per unit volume
The ratio of stress to strain in the elastic region is called:
Modulus of Rigidity
Bulk Modulus
Young's Modulus
Poisson's Ratio
Strain energy is stored in a material when it is:
Loaded beyond the elastic limit
Under uniform pressure
Within the elastic limit
In a plastic state
In simple tension, the volumetric strain is given by:
εx+εy+εz
1+2μ
σ/E(1−2μ)
None of these
If a material is loaded such that the strain is constant in all directions, the stress condition is:
Uniaxial stress
Pure shear
Hydrostatic stress
Plane stress
Which material property measures a material's ability to deform plastically?
Elastic Modulus
Ductility
Toughness
Hardness
Which property is tested in a torsion test?
Modulus of Rigidity
Bulk Modulus
Young's Modulus
Poisson's Ratio
Hooke's Law is valid up to the:
Yield point
Elastic limit
Fracture point
Proportional limit
The SI unit of modulus of rigidity is:
Pascal (Pa)
Newton (N)
Joule (J)
Watt (W)
Which of the following is a measure of energy absorption of a material before fracture?
Toughness
Elasticity
Stiffness
Resilience
The bending stress in a beam is proportional to:
The bending moment
The moment of inertia
The section modulus
The radius of curvature
In a simply supported beam, the bending moment at the point of zero shear force is:
Minimum
Maximum
Zero
Uniform
Shear force is the derivative of:
Stress
Strain
Bending Moment
Load
For a rectangular cross-section, the neutral axis passes through:
The topmost fiber
The centroid
The bottommost fiber
The point of maximum bending stress
The relationship between deflection δ, load W, and span L for a simply supported beam is proportional to:
WL3
WL3EI
LEI
W2L2
In torsion of a circular shaft, the shear stress is:
Zero at the center and maximum at the surface
Maximum at the center and zero at the surface
Uniform across the section
Zero throughout
The polar moment of inertia for a solid circular shaft is given by:
π4r4
π8r4
π2r4
π16r4
Torsional rigidity of a shaft is given by:
GJ
TL/J
T/J
T×J
A hollow shaft is preferred over a solid shaft because:
It has higher weight
It is easier to fabricate
It has a higher strength-to-weight ratio
It is cheaper
In torsion, the angle of twist is proportional to:
Shear stress only
Torsion moment only
Length of the shaft
Both length and torque
The slenderness ratio is the ratio of:
Effective length to radius of gyration
Radius of gyration to effective length
Stress to strain
Length to diameter
Euler's formula for buckling is valid for:
Short columns
Long columns
Both short and long columns
Thick columns only
Rankine's formula for columns considers:
Only direct stress
Only bending stress
Combined direct and bending stresses
Torsional stress
For a column with one end fixed and the other end free, the effective length is:
L
L/2
2L
2L/3
A column fails by buckling when:
Compressive stress exceeds ultimate strength
Shear stress exceeds the elastic limit
Lateral deflection becomes excessive
Bending moment exceeds yield moment
