A pre-tensioned concrete member of section 200 mm x 250 mm contains tendons of area 500 mm 2 at centre of gravity of the section. The prestress in the tendons is 1000 N/mm 2 . Assuming modular ratio as 10, the stress (N/mm 2 ) in concrete is

A pre-tensioned concrete member of section 200 mm x 250 mm contains te

1.	A pre-tensioned concrete member of section 200 mm x 250 mm contains tendons of area 500 mm 2 at centre of gravity of the section. The prestress in the tendons is 1000 N/mm 2 . Assuming modular ratio as 10, the stress (N/mm 2 ) in concrete is
A.	11
B.	9
C.	7
D.	5
Answer» C. 7

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A pre-tensioned concrete member of section 200 mm x 250 mm contains tendons of area 500 mm 2 at centre of gravity of the section. The prestress in the tendons is 1000 N/mm 2 . Assuming modular ratio as 10, the stress (N/mm 2 ) in concrete is

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