At the time of initial tensioning, the maximum tensile stress fpi immediately behind the anchorage shall not exceed ______ of the ultimate tensile strength fpu of the wire of bar or stand.

At the time of initial tensioning, the maximum tensile stress fpi imme

1.	At the time of initial tensioning, the maximum tensile stress fpi immediately behind the anchorage shall not exceed ______ of the ultimate tensile strength fpu of the wire of bar or stand.
A.	55%
B.	69%
C.	76%
D.	85%
Answer» D. 85%

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At the time of initial tensioning, the maximum tensile stress fpi immediately behind the anchorage shall not exceed ______ of the ultimate tensile strength fpu of the wire of bar or stand.

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