Objective type and Interview Questions on Strength of Materials – interview questions for civil engineers
The impact strength of a material is an index of its
Correct Answer: toughness
In brittle material, normally, breaking stress is equal to ultimate stress
Thermal strain of a body does not depend on
Correct Answer: length
Thermal change of length of a metal is directly proportional to its thermal coefficient
In ductile material ultimate stress is higher than nominal breaking stress but lower than true breaking stress
The property of a material which allows it to be drawn into a smaller section is called
Correct Answer: ductility
The loss of strength in compression due to sustained loading is known as
Correct Answer: creep
The maximum strain energy that can be stored in a body is known as
Correct Answer: proof resilience
The total strain energy stored in a body is termed as
Correct Answer: resilience
Proof stress is stress causing a specific permanent deformation usually 0.1% or 0.2%.
Thermal strain caused in a Reinforced composite body due to change in temperature will be same magnitude
Within Elastic limit Actual Stress is less than Nominal Stress
The energy absorbed by a body, when it is strained within the elastic limit, is known as
Correct Answer: resilience
Value of factor of safety is greater than 1
Hooke’s Law is truly valid up to proportional limit
In ductile material nominal breaking stress is lower than true breaking stress
Mild Steel is widely used in Reinforced Concrete because Thermal coefficient is almost equal to concrete
In tension test Actual Stress is equal to or greater than Nominal Stress
For mild steel, Yield stress is nearly equal to elastic stress
Metals used for suspension system and spring action should have high
Correct Answer: resilience
Mild Steel is more tougher than High Tensile steel
To prevent fatigue failure, the stress developed should be kept below endurance limit
In brittle metals, the failure surface is at ___________ angle to the direction of load.
Correct Answer: 90
Direct Stress are caused due to Axial loads
Shear stress acts parallel to section
Wood is an example of orthotropic material
Poisson’s ratio for cork is __________
Correct Answer: 1
Shear stress causes angular deformation
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