QUESTION 12 4 points Save Answer Which on of the following statements is correct

Question

QUESTION 12 4 points Save Answer Which on of the following statements is correct? When calculation the angle of twist, keep the angle in degrees. O When calculating the angle of twist convert the angle to radians first and then use t in the equation O The unit for change in length is dimensionless C The unit for change in length is the same as microstrain 4 points Saved QUESTION 13 On a circular horizontal beam with one single load acting on the midpoint from each end of the beam which has fixed supports on each end, the location where the shear goes to zero is o On the nght support On the left support

Explanation / Answer

when we calculate angle of twist we must convert the angle to radians first and then use it in the equation because radian is the standard unit for the measurement of angles and not degrees.The unit of change in length is not a dimensionless quantity because it has the unit of length that is metres whereas the unit for microstrain is dimensionless.Therefore, the correct answer is (b)

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