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Student Name: 3. Identify the following parameter that gives information of the

ID: 1866612 • Letter: S

Question

Student Name: 3. Identify the following parameter that gives information of the shape, size,and orientation of the area. a) centroid of area b) perimeter of area c) first moment of area d) second moment of area e) none of the above ANSWER: 4. Identify the following that represents a measure of the efficiency of a cross-sectional shape to resist bending caused by loading. a) centroid of the cross-section b) total area of the cross-sectional shape c) first moment of the area d) second moment of area e) none of the above ANSWER 5. The centroid of the triangular area before the circular cut out is located at point C as 2 cm) is cut out from the triangle, shown in Figure. If the circular area (with diameter locate the centroid of the composite shape. a) centroid is still located at C b) centroid moves to right of C c) centroid moves to left of C d) centroid cannot be determined e) none of the above 3 cm 9 cm ANSWER: Page 3 of 17 Exam #3 Sample-ENGN.2050, Statics (Spring 2018) Instructor: Dr. Raj K. Gondle

Explanation / Answer

3)The following parameter that gives information of the shape,size and orientation of the area is Second moment of Inertia

4)Among all no factor represents the efficiency of a corss-sectional area. Sectional modulus is effective in expressing the efficiency of cross-sectional shape. Answer is None of the above

5)From the above figure,even after the circle is cut out from triangle,centroid still remains at same point C