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.Management Sciences
Category: Strength of Materials
A cylindrical section having no joint is known as ____________________?
A. jointless section
B. homogeneous section
C. perfect section
D. manufactured section
E. seamless section
The percentage reduction in area of a cast iron specimen during tensile test would be of the order of_________________?
A. more than 50%
B. 25—50%
C. 10—25%
D. 5—10%
E. negligible
For which material the Poisson’s ratio is more than unity_________________?
A. steel
B. copper
C. aluminium
D. cast iron
E. none of the above
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
E. working stress
Hooke’s law holds good up to____________________?
A. yield point
B. limit of proportionality
C. breaking point
D. elastic limit
E. plastic limit
The impact strength of a material is an index of its ___________________?
A. toughness
B. tensile strength
C. capability of being cold worked
D. hardness
E. fatigue strength
Poisson’s ratio is defined as the ratio of_________________?
A. longitudinal stress and longitudinal strain
B. longitudinal stress and lateral stress
C. lateral stress and longitudinal stress
D. lateral stress and lateral strain
E. none of the above
The maximum frictional force which comes into play when a body just begins to slide over another surface is called________________?
A. limiting friction
B. sliding friction
C. rolling friction
D. kinematic friction
E. dynamic friction
The materials having same elastic properties in all directions are called________________?
A. ideal materials
B. uniform materials
C. isotropic materials
D. paractical materials
E. elastic materials
Which of the following materials is most elastic_________________?
A. rubber
B. plastic
C. brass
D. steel
E. glass
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