POST TENSION INSTITUTE PTI LEVEL 1 2 EXAM ACTUAL

POST TENSION INSTITUTE PTI LEVEL 1 & 2 EXAM ACTUAL

LATEST QUESTIONS WITH VERIFIED SOLUTIONS

GRADED A+

• It is OK to overstress a tendon in order to achieve the

required elongation as long you make sure you do not exceed 85% of MUTS.

• True
• False - ---Answers---b. False

• 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?

• Any grease material
• PT coating supplied by the post-tensioning supplier
• Any grease that is specifically for lubrication of metal parts
• Either A or C - ---Answers---b. PT coating supplied by the

post-tensioning supplier

• What will be recorded when inspecting a "lift-off"?

• Before and after elongations 1 / 3

• Gauge pressure needed to break the wedge loose and the

original elongation.

• Gauge pressure needed to the wedges loose and any

additional elongation.

• 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.

33. Define PRESTRESSED CONCRETE:

• Concrete that is cast at a plant and delivered to the job site

to be erected.

• Concrete in which internal stresses are induced by means of

prestressing tendons.

• Concrete that is designed to crack in designated locations.
• Concrete that is weak in tension. - ---Answers---b.

Concrete in which internal stresses are induced by means of prestressing tendons.

• Which factors determine the amount of the uplift force in a

post-tensioned member:

• Quantity of prestressing steel
• Quantity of conventional bottom steel
• Profile of the tendons 2 / 3

• Both A and C - ---Answers---d. Both A and C

35. The term KSI means:

• 1000 pounds per square inch
• 1000 pounds
• 270,000 pounds
• 33,000 pounds - ---Answers---a. 1000 pounds per square

inch

• Which factors are used to determine the Breaking Load of

prestressing steel:

• The jacking force and the grade of the prestressing steel
• The jacking force and the cross sectional area of the

prestressing steel

• The grade of the prestressing steel
• The cross-sectional area of the prestressing steel and its

MUTS - ---Answers---d. The cross-sectional area of the prestressing steel and its MUTS

• Why is it important to understand what the yield strength of

prestressing steel is?

• Because that is force you stress the strand to
• Because that is the force at which the tendon will break
• / 3