8/17/2019 Objective Type and Interview Questions on Strength of
Materials
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Objective type and Interview Questions
on Strength of Materials – interviewquestions 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
8/17/2019 Objective Type and Interview Questions on Strength of
Materials
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Proof stress is stress causing a specific permanent deformation
usually !"# or !$#!
Thermal strain caused in a %einforced composite body due to
change in temperature will be same
magnitude
&ithin 'lastic limit Actual (tress is less than )ominal
(tress
The energy absorbed by a body, when it is strained within the
elastic limit, is known as
Correct Answer: resilience
*alue of factor of safety is greater than "
+ookes -aw is truly .alid up to proportional limit
In ductile material nominal breaking stress is lower than true
breaking stress
/ild (teel is widely used in %einforced Concrete because Thermal
coefficient is almost equal to concrete
In tension test Actual (tress is equal to or greater than
)ominal (tress
0or mild steel, 1ield stress is nearly equal to elastic
stress
/etals used for suspension system and spring action should ha.e
high
Correct Answer: resilience
/ild (teel is more tougher than +igh Tensile steel
To pre.ent fatigue failure, the stress de.eloped should be kept
below endurance limit
In brittle metals, the failure surface is at 22222222222 angle
to the direction of load!
Correct Answer: 3
4irect (tress are caused due to Axial loads
(hear stress acts parallel to section
&ood is an example of orthotropic material
Poissons ratio for cork is 2222222222
Correct Answer: "
(hear stress causes angular deformation
