Exam preparation MCQs with answers

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Stress strain curve of high tensile steel_______________?
  • (A)  has a definite yield point
  • (B)  does not show definite yield point but yield point is defined by 0.1% proof stress
  • (C)  does not show definite yield point but yield point is defined by 0.2% proof stress
  • (D)  does not show definite yield point but yield point is defined by 2% proof stress
In prestressed concrete______________?
  • (A)  forces of tension and compression change but lever arm remains unchanged
  • (B)  forces of tension and compressions remain unchanged but lever arm changes with the moment
  • (C)  both forces of tension and compres-sion as well as lever arm change
  • (D)  both forces of tension and compres-sion as well as lever arm remain unchanged