Exam preparation MCQs with answers

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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
Strain is defined as the ratio of__________________?
  • (A)  change in volume to original volume
  • (B)  change in length to original length
  • (C)  change in cross-sectional area to original cross-sectional area
  • (D)  any one of the above
  • (E)  none of the above
In a tensile test, near the elastic limit zone, the______________?
  • (A)  tensile strain increases more quickly
  • (B)  tensile strain decreases more quickly
  • (C)  tensile strain increases in proportion to the stress
  • (D)  tensile strain decreases in proportion to the stress
  • (E)  tensile strain remains constant