is the pre- stressed force applied to tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The minimum stress on the beam subjected to a maximum bending moment is________________?

is the pre- stressed force applied to tendon of a rectangular pre-stre

1.	is the pre- stressed force applied to tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The minimum stress on the beam subjected to a maximum bending moment is________________?
A.	f = (P/A) – (Z/M)
B.	f = (A/P) – (M/Z)
C.	f = (P/A) – (M/Z)
D.	f = (P/A) – (M/6Z)
Answer» D. f = (P/A) – (M/6Z)

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is the pre- stressed force applied to tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The minimum stress on the beam subjected to a maximum bending moment is________________?

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