If the loading on a simply supported pre-stressed concrete beam is uniformly distributed, the centroid of the pre-stressing tendon should be as

A straight profile along the centroid axis

A straight profile along the lower edge of the kern

a parabolic profile with convexity downward

A circular profile with convexity upward

If the loading on a simply supported pre-stressed concrete beam is uni

1.	If the loading on a simply supported pre-stressed concrete beam is uniformly distributed, the centroid of the pre-stressing tendon should be as
A.	A straight profile along the lower edge of the kern
B.	a parabolic profile with convexity downward
C.	A straight profile along the centroid axis
D.	A circular profile with convexity upward
Answer» C. A straight profile along the centroid axis

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If the loading on a simply supported pre-stressed concrete beam is uniformly distributed, the centroid of the pre-stressing tendon should be as

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