[Solved] is the pre-stressed force applied to the tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The maximum stress in the beam, subjected to a maximum bending moment , is

Q.	is the pre-stressed force applied to the tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The maximum stress in 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» C. f = (P/A) + (M/Z)

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