A. 2.1xl05 kg/cm2
B. 2.1 X 106 kg/cm2
C. 2.1 x 107 kg/cm2
D. 0.1 xlO6 kg/cm2 (<?) 3.8 x 106 kg/cm2
Related Mcqs:
- 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 - A thin mild steel wire is loaded by adding loads in equal increments till it breaks. The extensions noted with increasing loads will behave as under_________________?
A. uniform throughout
B. increase uniformly
C. first increase and then decrease
D. increase uniformly first and then increase rapidly
E. increase rapidly first and then uniformly - 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 - Young’s modulus is defined as the ratio of ___________________?
A. volumetric stress and volumetric strain
B. lateral stress and lateral strain
C. longitudinal stress and longitudinal strain
D. shear stress to shear strain
E. longitudinal stress and lateral strain - The Young’s modulus of a wire is defined as the stress which will increase the length of wire compared to its original length________________?
A. half
B. same amount
C. double
D. one-fourth
E. four times - 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. become one-fourth
E. remain unaffected - Modulus of rigidity is defined as the ratio of_________________?
A. longitudinal stress and longitudinal strain
B. volumetric stress and volumetric strain
C. lateral stress and lateral strain
D. shear stress and shear strain
E. linear stress and lateral strain - The unit of Young’s modulus is__________________?
A. mm/mm
B. kg/cm
C. kg
D. kg/cm2
E. kg cm2 - 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 - The value of Poisson’s ratio for steel is between_________________?
A. 0.01 to 0.1
B. 0.23 to 0.27
C. 0.25 to 0.33
D. 0.4 to 0.6
E. 3 to 4
