390Civil EngineeringMediumTo determine the modulus of rupture, the size of test specimen used is________?A100 x100 x500 mmB150 x150 x700 mmC150 x150 x500 mmD100 x100 x700 mm Correct answerB. 150 x150 x700 mm ExplanationThe correct answer is 150 x150 x700 mm.