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.Management Sciences
Category: Strength of Materials
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
E. none of the above
Shear stress induced in a shaft subjected to tension will be__________________?
A. maximum at periphery and zero at center
B. maximum at center
C. uniform throughout
D. average value in center
E. none of the above
A single force and a couple acting in the same plane upon a rigid body_________________?
A. balance each other
B. cannot balance each other
C. produce moment of a couple
D. are equivalent
E. none of the above
Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one_______________?
A. ellipse
B. hyperbola
C. parabola
D. circle
E. none of the above
The ratio of direct stress to volumetric strain in case of a body subjected to three mutually perpendicular stresses of equal intensity, is equal to___________________?
A. Young’s modulus
B. bulk modulus
C. modulus of rigidity
D. modulus of elasticity
E. Poisson’s ratio
True stress-strain curve for materials is plotted between__________________?
A. load/original cross-sectional area and change in length/original length
B. load/instantaneous cross-sectional area original area and log
C. load/instantaneous cross-sectional area and change in length/original length
D. load/instantaneous area and instantaneous area/original area
E. none of the above
Proof resilience per material is known as________________?
A. resilience
B. proof resilience
C. modulus of resilience
D. toughness
E. impact energy
The materials which exhibit the same elastic properties in all directions are called______________?
A. homogeneous
B. inelastic
C. isotropic
D. isentropic
E. visco-elastic.
Deformation per unit length in the direction of force is known as_________________?
A. strain
B. lateral strain
C. linear strain
D. linear stress
E. unit strain
The intensity of stress which causes unit strain is called_______________?
A. unit stress
B. bulk modulus
C. modulus of rigidity
D. modulus of elasticity
E. principal stress
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