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
Related Mcqs:
- 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 - The ratio of elongation in a prismatic bar due to its own weight (W) as compared to another similar bar carrying an additional weight (W) will be _________________?
A. 1:2
B. 1 : 3
C. 1 : 4
D. 1 : 2.5
E. 1 : 2.25 - 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 - The force acting along the circumference will cause stress in the walls in a direction normal to the longitudinal axis of cylinder; this stress is called___________________?
A. longitudinal stress
B. hoop stress
C. yeiled stress
D. ultimate stress
E. none of the above - In a tensile test on mild steel specimen, the breaking stress as compared to ultimate tensile stress is_________________?
A. more
B. less
C. same
D. more/less depending on composition
E. may have any value - The ultimate tensile stress of mild steel compared to ultimate compressive stress is__________________?
A. same
B. more
C. less
D. more or less depending on other factors
E. unpredictable - 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
E. any one of the above - 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 - The change in the unit volume of a material under tension with increase in its Poisson’s ratio will ________________?
A. increase
B. decrease
C. remain same
D. increase initially and then decrease
E. unpredictable - The elasticity of various materials is controlled by its___________________?
A. ultimate tensile stress
B. proof stress
C. stress at yield point
D. stress at elastic limit
E. tensile stress