LOUISIANA PRESTRESSED CONCRETE
INSPECTION EXAMINATION WITH ACTUAL
QUESTIONS AND VERIFIED ANSWERS,
PLUS EXPLAINED RATIONALES/EXPERT
VERIFIED FOR GUARANTEED 100% PASS
2026/LATEST UPDATE/INSTANT
DOWNLOAD PDF
1. What is the principal structural purpose of prestressing a
concrete girder?
A. To eliminate the need for reinforcing steel in all locations
B. To introduce compressive stresses into the concrete that counteract
tensile stresses produced by service loads
C. To increase the density of the concrete by reducing aggregate content
D. To prevent concrete from undergoing any dimensional change
Answer: B. To introduce compressive stresses into the concrete that
counteract tensile stresses produced by service loads
Rationale: Prestressing intentionally introduces a controlled
compressive force into the concrete before or during service. Because
concrete performs well in compression but poorly in tension, the
induced compression reduces or controls tensile stresses and cracking
caused by dead and live loads. An inspector therefore needs to
understand the relationship between the applied prestressing force,
tendon location, concrete strength, and resulting structural behavior.
2. Which statement best distinguishes pretensioning from post-
tensioning?
A. Pretensioning occurs after the concrete has hardened, while post-
tensioning occurs before concrete placement
1
,B. Pretensioning uses reinforcing bars only, while post-tensioning uses
concrete only
C. Pretensioning generally stresses tendons before concrete placement,
while post-tensioning stresses tendons after the concrete has gained
sufficient strength
D. There is no meaningful difference between the two systems
Answer: C. Pretensioning generally stresses tendons before concrete
placement, while post-tensioning stresses tendons after the concrete
has gained sufficient strength
Rationale: In pretensioned members, strands are tensioned against
fixed abutments before concrete placement. After the concrete reaches
the specified release strength, the strands are released and transfer
prestress to the concrete through bond. In post-tensioning, tendons are
generally installed in ducts or other systems and stressed after concrete
has hardened sufficiently.
3. During inspection of a pretensioning operation, why is strand
seating and anchorage condition especially important?
A. It determines the color of the finished concrete
B. It ensures the tensile force can be safely developed and maintained
during casting
C. It eliminates the requirement for concrete testing
D. It controls the aggregate gradation
Answer: B. It ensures the tensile force can be safely developed and
maintained during casting
Rationale: Pretensioning involves substantial stored energy in the
stressed strands. The anchorage system must maintain the required
force throughout the casting operation. Slippage, improper seating,
2
,damaged hardware, or inadequate anchorage can alter strand force
and create serious personnel and structural hazards.
4. Which condition would most strongly suggest that a prestressing
strand may have experienced unintended movement before concrete
placement?
A. Correct strand spacing and alignment
B. A documented tensioning record matching the approved procedure
C. Visible strand displacement, damaged anchorage components, or
unexplained changes in measured elongation
D. Properly consolidated concrete
Answer: C. Visible strand displacement, damaged anchorage
components, or unexplained changes in measured elongation
Rationale: Unexpected strand movement can change the intended
prestress distribution and potentially affect the member's structural
performance. The inspector should compare physical conditions with
approved shop drawings and tensioning records and should not simply
accept unexplained discrepancies.
5. What is the primary reason an inspector must verify that the
specified concrete release strength has been achieved before
releasing pretensioned strands?
A. To make the concrete easier to paint
B. To ensure the concrete has sufficient capacity to receive the
transferred prestress without unacceptable damage
C. To reduce the amount of aggregate in the member
D. To make stripping forms unnecessary
Answer: B. To ensure the concrete has sufficient capacity to receive
the transferred prestress without unacceptable damage
3
, Rationale: Releasing prestressing strands transfers substantial
compressive force into the concrete. If the concrete is released
prematurely, it may experience cracking, local distress, end-zone
damage, excessive deformation, or other defects. Strength verification
is therefore a critical hold point in fabrication.
Category 2 — Plans, Shop Drawings and Inspection Documentation
6. Before fabrication begins, what document should the inspector
primarily use to verify the intended geometry and reinforcement
arrangement of a prestressed member?
A. The contractor's payroll record
B. The approved shop drawings and contract documents
C. The concrete truck driver's license
D. The project's traffic-control plan only
Answer: B. The approved shop drawings and contract documents
Rationale: Shop drawings provide fabrication-specific information
such as member dimensions, strand pattern, reinforcement, inserts,
embedded items, lifting points, openings, camber-related information,
and other details. DOTD specifications specifically require shop
drawings to be available to the plant inspector before fabrication
begins.
7. An inspector discovers that the fabrication plant is using a shop
drawing that differs from the approved drawing. What is the most
appropriate action?
A. Allow fabrication to continue because the difference is probably
minor
B. Change the drawing personally with a pencil
C. Stop or hold the affected work as appropriate and obtain
4
INSPECTION EXAMINATION WITH ACTUAL
QUESTIONS AND VERIFIED ANSWERS,
PLUS EXPLAINED RATIONALES/EXPERT
VERIFIED FOR GUARANTEED 100% PASS
2026/LATEST UPDATE/INSTANT
DOWNLOAD PDF
1. What is the principal structural purpose of prestressing a
concrete girder?
A. To eliminate the need for reinforcing steel in all locations
B. To introduce compressive stresses into the concrete that counteract
tensile stresses produced by service loads
C. To increase the density of the concrete by reducing aggregate content
D. To prevent concrete from undergoing any dimensional change
Answer: B. To introduce compressive stresses into the concrete that
counteract tensile stresses produced by service loads
Rationale: Prestressing intentionally introduces a controlled
compressive force into the concrete before or during service. Because
concrete performs well in compression but poorly in tension, the
induced compression reduces or controls tensile stresses and cracking
caused by dead and live loads. An inspector therefore needs to
understand the relationship between the applied prestressing force,
tendon location, concrete strength, and resulting structural behavior.
2. Which statement best distinguishes pretensioning from post-
tensioning?
A. Pretensioning occurs after the concrete has hardened, while post-
tensioning occurs before concrete placement
1
,B. Pretensioning uses reinforcing bars only, while post-tensioning uses
concrete only
C. Pretensioning generally stresses tendons before concrete placement,
while post-tensioning stresses tendons after the concrete has gained
sufficient strength
D. There is no meaningful difference between the two systems
Answer: C. Pretensioning generally stresses tendons before concrete
placement, while post-tensioning stresses tendons after the concrete
has gained sufficient strength
Rationale: In pretensioned members, strands are tensioned against
fixed abutments before concrete placement. After the concrete reaches
the specified release strength, the strands are released and transfer
prestress to the concrete through bond. In post-tensioning, tendons are
generally installed in ducts or other systems and stressed after concrete
has hardened sufficiently.
3. During inspection of a pretensioning operation, why is strand
seating and anchorage condition especially important?
A. It determines the color of the finished concrete
B. It ensures the tensile force can be safely developed and maintained
during casting
C. It eliminates the requirement for concrete testing
D. It controls the aggregate gradation
Answer: B. It ensures the tensile force can be safely developed and
maintained during casting
Rationale: Pretensioning involves substantial stored energy in the
stressed strands. The anchorage system must maintain the required
force throughout the casting operation. Slippage, improper seating,
2
,damaged hardware, or inadequate anchorage can alter strand force
and create serious personnel and structural hazards.
4. Which condition would most strongly suggest that a prestressing
strand may have experienced unintended movement before concrete
placement?
A. Correct strand spacing and alignment
B. A documented tensioning record matching the approved procedure
C. Visible strand displacement, damaged anchorage components, or
unexplained changes in measured elongation
D. Properly consolidated concrete
Answer: C. Visible strand displacement, damaged anchorage
components, or unexplained changes in measured elongation
Rationale: Unexpected strand movement can change the intended
prestress distribution and potentially affect the member's structural
performance. The inspector should compare physical conditions with
approved shop drawings and tensioning records and should not simply
accept unexplained discrepancies.
5. What is the primary reason an inspector must verify that the
specified concrete release strength has been achieved before
releasing pretensioned strands?
A. To make the concrete easier to paint
B. To ensure the concrete has sufficient capacity to receive the
transferred prestress without unacceptable damage
C. To reduce the amount of aggregate in the member
D. To make stripping forms unnecessary
Answer: B. To ensure the concrete has sufficient capacity to receive
the transferred prestress without unacceptable damage
3
, Rationale: Releasing prestressing strands transfers substantial
compressive force into the concrete. If the concrete is released
prematurely, it may experience cracking, local distress, end-zone
damage, excessive deformation, or other defects. Strength verification
is therefore a critical hold point in fabrication.
Category 2 — Plans, Shop Drawings and Inspection Documentation
6. Before fabrication begins, what document should the inspector
primarily use to verify the intended geometry and reinforcement
arrangement of a prestressed member?
A. The contractor's payroll record
B. The approved shop drawings and contract documents
C. The concrete truck driver's license
D. The project's traffic-control plan only
Answer: B. The approved shop drawings and contract documents
Rationale: Shop drawings provide fabrication-specific information
such as member dimensions, strand pattern, reinforcement, inserts,
embedded items, lifting points, openings, camber-related information,
and other details. DOTD specifications specifically require shop
drawings to be available to the plant inspector before fabrication
begins.
7. An inspector discovers that the fabrication plant is using a shop
drawing that differs from the approved drawing. What is the most
appropriate action?
A. Allow fabrication to continue because the difference is probably
minor
B. Change the drawing personally with a pencil
C. Stop or hold the affected work as appropriate and obtain
4
