PTI Training Questions and All Correct
Answers 2026 Updated.
Add Tendons - Answer Tendons usually short in length placed in specific locations, such as
end bays, to increase the uplift force at that location
Back-up bars - Answer Reinforcing steel used to control the tensile splitting forces in the
concrete resulting from the concentrated anchor force developed by the stressed tendons.
Banded Tendons - Answer Group(s) of closely spaced tendons placed together in a narrow
strip usually along a column line.
Bearing Plate - Answer A metal plate, which bears directly against the concrete and is part of
an overall anchorage system.
Coupler - Answer A device designed to connect two strand ends together.
Elongation - Answer Increase in the length of the prestressing steel under the applied
prestressing force.
Encapsulated System - Answer A system which provides watertight connections at all
stressing, intermediate, and fixed ends, and provides a watertight enclosure of the wedge cavity
and prestressing steel.
Friction Loss - Answer The loss of force in a tendon resulting from friction that occurs
between the strand and sheathing due to the wobble and/or profile of the tendon, created
during stressing.
Jacking Force - Answer The maximum temporary force exerted by the jack while stressing a
tendon.
Kip - Answer 1000 pounds of force
MUTS - Answer The minimum breaking strength of a strand.
Post-Tensioning - Answer A method of prestressing in which the tendons are tensioned after
concrete has hardened.
, Prestressed concrete - Answer Concrete in which internal forces are induced by means of
prestressed reinforcement, typically, steel tendons.
Profile - Answer The path a tendon follows in the concrete from end to end.
P-T Coating - Answer Material used to protect against corrosion and reduce friction between
prestressing steel and sheathing.
Seating Loss - Answer The movement of the wedges into the anchor cavity during the
transfer of the prestressing force to the anchorage, resulting of some loss of prestressing force.
Strand - Answer High strength steel wires twisted around a center wire.
Tendon - Answer A complete assembly consisting of anchorages, prestressing steel, P-T
coating, and sheathing.
Unbonded Tendon - Answer Tendon in which the prestressing steel is prevented from
bonding to the concrete, and is free to move relative to the concrete.
Wobble friction - Answer The friction caused by the unintended horizontal deviation of the
tendon.
The two factors the designer can use to vary the amount of uplift in a concrete member are: -
Answer Force, # of tendons, profile
In the exterior bay of a structure, the designer has anchored the tendons in the center of the
slab. Since the profile in this bay is reduced, there is not enough uplift. What can the designer
do to increase the amount of uplift force in this bay, without affecting the other spans? - Answer
Add tendons
Final Effective force - Answer The force after all short and long term losses have occurred
Yield strength - Answer The point at which the steel loses its required elasticity
Initial force - Answer The force in the tendon immediately after the wedges are seated.
MUTS - Answer the breaking strength of the strand
Answers 2026 Updated.
Add Tendons - Answer Tendons usually short in length placed in specific locations, such as
end bays, to increase the uplift force at that location
Back-up bars - Answer Reinforcing steel used to control the tensile splitting forces in the
concrete resulting from the concentrated anchor force developed by the stressed tendons.
Banded Tendons - Answer Group(s) of closely spaced tendons placed together in a narrow
strip usually along a column line.
Bearing Plate - Answer A metal plate, which bears directly against the concrete and is part of
an overall anchorage system.
Coupler - Answer A device designed to connect two strand ends together.
Elongation - Answer Increase in the length of the prestressing steel under the applied
prestressing force.
Encapsulated System - Answer A system which provides watertight connections at all
stressing, intermediate, and fixed ends, and provides a watertight enclosure of the wedge cavity
and prestressing steel.
Friction Loss - Answer The loss of force in a tendon resulting from friction that occurs
between the strand and sheathing due to the wobble and/or profile of the tendon, created
during stressing.
Jacking Force - Answer The maximum temporary force exerted by the jack while stressing a
tendon.
Kip - Answer 1000 pounds of force
MUTS - Answer The minimum breaking strength of a strand.
Post-Tensioning - Answer A method of prestressing in which the tendons are tensioned after
concrete has hardened.
, Prestressed concrete - Answer Concrete in which internal forces are induced by means of
prestressed reinforcement, typically, steel tendons.
Profile - Answer The path a tendon follows in the concrete from end to end.
P-T Coating - Answer Material used to protect against corrosion and reduce friction between
prestressing steel and sheathing.
Seating Loss - Answer The movement of the wedges into the anchor cavity during the
transfer of the prestressing force to the anchorage, resulting of some loss of prestressing force.
Strand - Answer High strength steel wires twisted around a center wire.
Tendon - Answer A complete assembly consisting of anchorages, prestressing steel, P-T
coating, and sheathing.
Unbonded Tendon - Answer Tendon in which the prestressing steel is prevented from
bonding to the concrete, and is free to move relative to the concrete.
Wobble friction - Answer The friction caused by the unintended horizontal deviation of the
tendon.
The two factors the designer can use to vary the amount of uplift in a concrete member are: -
Answer Force, # of tendons, profile
In the exterior bay of a structure, the designer has anchored the tendons in the center of the
slab. Since the profile in this bay is reduced, there is not enough uplift. What can the designer
do to increase the amount of uplift force in this bay, without affecting the other spans? - Answer
Add tendons
Final Effective force - Answer The force after all short and long term losses have occurred
Yield strength - Answer The point at which the steel loses its required elasticity
Initial force - Answer The force in the tendon immediately after the wedges are seated.
MUTS - Answer the breaking strength of the strand
