Instructional Manual for Training and Certification for Field Personnel for Unbonded Post-Tensioning Study Guide.

Instructional Manual for Training and
Certification for Field Personnel for
Unbonded Post-Tensioning Study
Guide.
A method of prestressing in which the tendons are tensioned after the concrete has hardened is
called _____.



A. Partial prestressing

B. Post-tensioning

C. Pressure stressing

D. Stage stressing - Answer B. Post-tensioning



pg 4



Prestressing of concrete to stress levels such that tensile stresses can exist under design service
loads is called _____.



A. Partial prestressing

B. Post-tensioning

C. Initial stressing

D. Stage stressing - Answer A. Partial prestressing



pg 4



_____ is any horizontal structural member projecting beyond its vertical point.



A. Camber

B. Coupler

C. Cantilever

D. Tendon tail - Answer C. Cantilever



pg 2



MUTS stand for _____.

, A. Maximum ultimate tensile strength

B. Maximum ultimate tendon strength

C. Minimum ultimate tendon strength

D. Minimum ultimate tensile strength - Answer D. Minimum ultimate tensile strength



pg 4



High strength steel which is used to prestress concrete is commonly _____ wire strand or bar.



A. 3

B. 5

C. 7

D. 8 - Answer C. 7



pg 5 Def: prestressing steel



A. tendon consists of all the following except:



A. Sheathing/PT Coating

B. Anchorages

C. Prestressing steel (strand)

D. Stressing equipment - Answer D. Stressing equipment



pg 6



In post-tensioned concrete, until the concrete hardens to about _____% of its full strength, the
tendon is not pulled (stressed).



A. 100%

B. 90%

C. 85%

D. 75% - Answer D. 75%



pg 8