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Free download in PDF Stress and Strain Short Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
41
A cylindrical section having no joint is known as
[A]
jointless section
[B]
homogeneous section
[C]
perfect section
[D]
seamless section
42
A beam is loaded as cantilever. If the load at the end is increased, the failure will occur
[A]
in the middle
[B]
at the tip below the load
[C]
at the support
[D]
anywhere
43
A non-yielding support implies that the
[A]
support is frictionless
[B]
support can take any amount of reaction
[C]
support holds member firmly
[D]
slope of the beam at the support is zero
Answer: slope of the beam at the support is zero
44
In a prismatic member made of two materials so joined that they deform equally under axial stress, the unit stresses in two materials are
[A]
equal
[B]
proportional to their respective moduli of elasticity
[C]
inversely proportional to their moduli of elasticity
[D]
average of the sum of moduli of elas-ticity
Answer: proportional to their respective moduli of elasticity
45
In riveted boiler joints, all stresses, shearing, bearing and tensile are based on the
[A]
size of rivet
[B]
size of the drilled or reamed hole
[C]
average of size of rivet and hole
[D]
smaller of the two
Answer: size of the drilled or reamed hole
46
The distance between the centres of the rivets in adjacent rows of zig-zag riveted joint is known as
[A]
pitch
[B]
back pitch
[C]
diagonal pitch
[D]
diametral pitch
47
When two plates are butt together and riveted with cover plates with two rows of rivets, the joi;it is known as
[A]
lap point
[B]
butt joint
[C]
single riveted single cover butt joint
[D]
double riveted double cover butt joint
Answer: double riveted double cover butt joint
48
The deformation of a bar under its own weight compared to the deformation of same body subjected to a direct load equal to weight of the body is
[A]
same
[B]
double
[C]
half
[D]
four times
49
Hooke's law holds good up to
[A]
yield point
[B]
limit of proportionality
[C]
breaking point
[D]
elastic limit
Answer: limit of proportionality
50
The unit of Young's modulus is
[A]
mm/mm
[B]
kg/cm
[C]
kg
[D]
kg/cm2
51
It equal and opposite forces applied to a body tend to elongate it, the stress so produced is called
[A]
internal resistanpe
[B]
tensile stress
[C]
transverse stress
[D]
compressive stress
52
If the radius of wire stretched by a load is doubled, then its Young's modulus will be
[A]
doubled
[B]
halved
[C]
become four times
[D]
remain unaffected
Answer: remain unaffected
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