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Exam (elaborations)

Public Health (Final Exam) UPDATED ACTUAL Exam Questions and CORRECT Answers

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Public Health (Final Exam) UPDATED ACTUAL Exam Questions and CORRECT Answers

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PTI LEVEL 1 & 2 EXAM UPDATED ACTUAL QUESTIONS AND CORRECT
ANSWERS VERIFIED 2027 EDITION

1. 1. According to PTI Specifications, what is the allowable tolerance for the measurement of
elongations in an elevated (structural) slab? a. ±5% b. ±7% c. ±10% d. It doesn't matter as long as the
tendons were stressed to the correct gauge pressure.
b. ±7%

2. 2. The recommended space, "Y" between tendon bundles in a beam is. a. 4in. b. 1.5 in. c. 1 in. d. 0.5.
b. 1.5 in.

3. 3. What is the minimum number of integrity tendons required in each direction over columns in a
flat slab? a. One b. Two c. Three d. There is no minimum requirement.
b. Two

4. 4. In an encapsulated system, how much bare strands is acceptable behind stressing anchorage? a.
None b. ½" maximum c. 6" maximum d. It does not matter.
a. None

5. 5. Longitudinal cracking of wedges may occur and is acceptable as a result of wedges moving to
their final wedge set position. a. True b. False
a. True

6. 6. What should be done when the beam stirrup spacing does not match the PT support bar spacing?
a. Move the support bar to the nearest stirrup location and adjust the vertical height so that a smooth
tendon profile is maintained, add additional support bars at other stirrup locations if needed so a
maximum allowable support spacing is not exceeded. b. Change the spacing of the beam stirrup to
match the support bar spacing. c. Do not proceed with installation until further instructions are
received. d. None of the above.
a. Move the support bar to the nearest stirrup location and adjust the vertical height so that a smooth
tendon profile is maintained, add additional support bars at other stirrup locations if needed so a
maximum allowable support spacing is not exceeded.

7. 7. When installing tendons in a narrow joist: a. It is important to avoid excessive wobble in tendons
that could lead to concrete blowouts. b. Tendon placement is not critical since there is only one
tendon in each joist. c. It is important to check for any reverse curvature in a tendon profile to avoid
problems. d. Both A and C.
a. It is important to avoid excessive wobble in tendons that could lead to concrete blowouts.

8. 8. Of the following, what is the most important thing a contractor must do when field installing a
fixed-end anchor? a. Firmly hammer the wedges into the back of the anchor. b. Grease the wedges
before installing them in the anchor to reduce friction. c. Stress the anchor to the full required jacking
force. d. None of the above.
d. None of the above.

9. 9. The hydraulic pump can be interchanged without re-calibrating the stressing equipment. a. True
b. False
a. True




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, 10. 10. If elongations are out of tolerance: a. Report to the LDP and wait for further direction. b. If
elongations are low, continue stressing to a higher gauge pressure until the reported elongation is
attained. c. Cut off tendon tails during the same shift. d. A and B.
a. Report to the LDP and wait for further direction.

11. 11. Always use a 2x4 for a reference point device when marking the tendons for measuring
elongations. This way if you lose it, you can just grab another 2x4 off the job site. a. True b. False
b. False

12. 12. During the stressing operation two of the tendons in a beam measure 12% shorter than
calculated elongation shown on the approved post tensioning installation drawings. You should... a.
Stress the next two beam tendons to 70% MUTS instead of 80% b. De-tension these two tendons and
re-stress them. c. Record the elongations as measured and ascertain what is causing the overage
before continuing to stress additional tendons. d. None of the above.
c. Record the elongations as measured and ascertain what is causing the overage before continuing to
stress additional tendons.

13. 13. When stressing a tendon with two stressing ends, you should proceed as outlined: a. Properly
hand seat wedges in both ends; apply the elongation reference mark to both ends; stress one end to
full gauge pressure; stress the other end to full gauge pressure; record elongations from both ends
and add them together to get a total elongation for the tendon. b. Properly hand seat wedges in both
ends; apply the elongation mark to both ends; stress one end to full gauge pressure; check to see if
the elongation falls within required tolerance, if so, record it and you are done, if not, stress the other
end to full gauge pressure, record elongations from both ends and add them together to get a total
elongation for the tendon. c. Properly hand seat wedges in both ends; apply the elongation reference
marks to both ends; stress one end to 50% of the gauge pressure; stress the other end to 50% of gauge
pressure; record elongations from both ends and add them together to get a total elongation for the
tendon. d. Properly hand seat wedges in both ends; apply the elongation reference mark to both ends;
stress one end to one full stroke of the jack; stress the other end to full gauge pressure; reco
a. Properly hand seat wedges in both ends; apply the elongation reference mark to both ends; stress one
end to full gauge pressure; stress the other end to full gauge pressure; record elongations from both ends
and add them together to get a total elongation for the tendon.

14. 14. When is it OK to de-tension a tendon? a. Anytime the measure elongation is too short. b. Only
when directed to do so by the engineer of record. c. Whenever you are unsure about the gauge
pressure reached as you did not pay attention during stressing. d. Anytime the elongation reference
mark is unclear.
b. Only when directed to do so by the engineer of record.

15. 15. Select the correct statement. a. Elongation should be recorded at the end of stressing an entire
pour. b. Elongation should be recorded at the end of each day's work. c. Elongation should be recorded
following shortly after tendon stressing. d. Either A or B is acceptable.
c. Elongation should be recorded following shortly after tendon stressing.

16. 16. In a beam and one-way slab system, it is permissible to support the slab tendons on the beam
top bars. a. False b. True
a. False

17. 17. When installing barrier cable, it is important to: a. Back-stress all cables to full jacking force of
80% MUTS. a. Back-stress all cables to full jacking force of 80% MUTS. b. Elongations fall within the
allowable tolerance. c. Stress all cables to 33 kips to ensure they don't sag. d. None of the above.
d. None of the above.




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