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Questions and Answers
If a steel rod of 1 m length has to transmit a force of 15 kN without stretching more than 1 mm, what is the minimum cross-sectional area required?
If a steel rod of 1 m length has to transmit a force of 15 kN without stretching more than 1 mm, what is the minimum cross-sectional area required?
- 150 mm2 (correct)
- 150 m2
- 75 m2
- 75 mm2
What is the unit of strain?
What is the unit of strain?
- No unit
- mm (correct)
- mm2
- N/mm2
What is the proper sequence of the following terms: Proportional limit, elastic limit, yielding, failure?
What is the proper sequence of the following terms: Proportional limit, elastic limit, yielding, failure?
- Proportional limit, elastic limit, yielding, failure (correct)
- Elastic limit, proportional limit, yielding, failure
- Yielding, proportional limit, elastic limit, failure
- None of the above
What is the volumetric strain for a bar subjected to normal stress on all its surfaces?
What is the volumetric strain for a bar subjected to normal stress on all its surfaces?
A bar of length L metres extends by l mm under a tensile force of P. What is the strain produced in the bar?
A bar of length L metres extends by l mm under a tensile force of P. What is the strain produced in the bar?
If a tensile load of 500 N is applied to a circular rod of diameter 5 mm, what is the approximate normal stress?
If a tensile load of 500 N is applied to a circular rod of diameter 5 mm, what is the approximate normal stress?
In a stress-strain of a material, Hooke's Law is valid up to
In a stress-strain of a material, Hooke's Law is valid up to
Which among of the following is the most elastic?
Which among of the following is the most elastic?
Poisson's ratio of which of the following materials is nearly zero?
Poisson's ratio of which of the following materials is nearly zero?
If Poisson's ratio for a material is 0.5, then the elastic modulus for the material is
If Poisson's ratio for a material is 0.5, then the elastic modulus for the material is
The stress due to unit strain is
The stress due to unit strain is
Young’s modulus, Bulk modulus (K) and shear modulus (G) are related by
Young’s modulus, Bulk modulus (K) and shear modulus (G) are related by
An alloy wire of 2 mm cross-sectional area and 12 N weight hangs freely under its own weight. The maximum length of the wire, if its extension is not to exceed 0.6mm. Where E = 150 GPa
An alloy wire of 2 mm cross-sectional area and 12 N weight hangs freely under its own weight. The maximum length of the wire, if its extension is not to exceed 0.6mm. Where E = 150 GPa
The relationship between true strain (εT) and engineering strain (εE) in a uniaxial tension test is given as
The relationship between true strain (εT) and engineering strain (εE) in a uniaxial tension test is given as
Whenever a material is loaded within elastic limit, stress is _______ strain.
Whenever a material is loaded within elastic limit, stress is _______ strain.
If the ratio $G/E = 0.4$, the Poisson’s ratio will be:
If the ratio $G/E = 0.4$, the Poisson’s ratio will be:
