EXAM
1. In an encapsulated system that requires the tube covering the bare
prestressing steel to be filled to remove all voids, which of the following
products is acceptable for filling the tubes?
a. Any grease material
b. PT coating supplied by the post-tensioning supplier
c. Any grease that is specifically for lubrication of metal parts
d. Either A or C - ANSWERS-b. PT coating supplied by the post-
tensioning supplier
2. What will be recorded when inspecting a "lift-off"?
a. Before and after elongations
b. Gauge pressure needed to break the wedge loose and the original
elongation.
c. Gauge pressure needed to the wedges loose and any additional
elongation.
d. Gauge pressure that the gauge drops to immediately after the wedges
break loose and any additional elongation. - ANSWERS-d. Gauge
pressure that the gauge drops to immediately after the wedges break
loose and any additional elongation.
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, PTI LEVEL 1 & 2 LATEST
EXAM
3. Define PRESTRESSED CONCRETE:
a. Concrete that is cast at a plant and delivered to the job site to be
erected.
b. Concrete in which internal stresses are induced by means of
prestressing tendons.
c. Concrete that is designed to crack in designated locations.
d. Concrete that is weak in tension. - ANSWERS-b. Concrete in which
internal stresses are induced by means of prestressing tendons.
4. Which factors determine the amount of the uplift force in a post-
tensioned member:
a. Quantity of prestressing steel
b. Quantity of conventional bottom steel
c. Profile of the tendons
d. Both A and C - ANSWERS-d. Both A and C
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, PTI LEVEL 1 & 2 LATEST
EXAM
5. The term KSI means:
a. 1000 pounds per square inch
b. 1000 pounds
c. 270,000 pounds
d. 33,000 pounds - ANSWERS-a. 1000 pounds per square inch
6. Which factors are used to determine the Breaking Load of
prestressing steel:
a. The jacking force and the grade of the prestressing steel
b. The jacking force and the cross sectional area of the prestressing steel
c. The grade of the prestressing steel
d. The cross-sectional area of the prestressing steel and its MUTS -
ANSWERS-d. The cross-sectional area of the prestressing steel and its
MUTS
7. Why is it important to understand what the yield strength of
prestressing steel is?
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