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- 1. Multiple Choice
Young's modulus is defined a
Tensile strain/Tesnsile stress
Tensile stress*Tensile strain
Tensile stress/Tensile strain
Length/area
- 2. Multiple Choice
With rise in temperature, the Young’s modulus of elasticity of a material
Increases
May increase or decrease
Does not change
Decreases
- 3. Multiple Choice
The limit beyond which the material does not behave elastically is known as
Proportional limit
Plastic limit
Elastic limit
Yield Point
- 4. Multiple Choice
The section modulus of a rectangular section(b*d) about an axis through its C.G. and parallel to the base ‘b’ is
bd3/3
bd3/4
bd3/6
bd3/12
- 5. Multiple Choice
Due to the forces acting, a horizontal beam is in:
Shear
Compression
Tension
None
- 6. Multiple Choice
The unit of Young’s modulus of elasticity is:
pascals
metres
dimension-less
newtons
- 7. Multiple Choice
A wire is stretched 3 mm by a force of 150 N. Assuming the elastic limit is not exceeded, the force that will stretch the wire 5 mm is:
150 N
90 N
250 N
450 N
- 8. Multiple Choice
Due to forces acting, a pillar supporting a bridge is in:
compression
shear
tension
none
- 9. Multiple Choice
The spring balance does not read properly after its long use, because
The elasticity of spring increases
The elasticity decreases
Its plastic power decreases
Its plastic power increases
- 10. Multiple Choice
When compared with solids and liquids, the gases have
Minimum volume elasticity
Maximum volume elasticity
Maximum Young's modulus
Maximum modulus of rigidity
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