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QUESTIONS, ANSWERS AND RATIONALES
A General Contractor enters into a lump-sum contract for a
construction project. Which of the following represents the
greatest financial risk to the contractor under this agreement?
a. The owner's right to make design changes
,b. Increased material costs during the project
c. Delays caused by local building inspections
d. Subcontractor scheduling conflicts
✔️ Correct Answer: B
Rationale: In a lump-sum (fixed-price) contract, the contractor
agrees to complete the work for a predetermined price. The
contractor bears the full financial risk of any cost overruns,
including increases in material prices, labor costs, or
productivity issues. The owner absorbs the risk of design
changes (Option A) through change orders, inspections
(Option C) are typically foreseeable, and subcontractor
conflicts (Option D) are manageable through the contractor's
means and methods.
According to standard construction contract hierarchy, which
document generally takes precedence in the event of a
conflict among the contract documents?
a. Specifications
b. Drawings
c. Addenda
d. General conditions
✔️ Correct Answer: C
Rationale: Addenda are issued prior to contract execution and
modify or clarify the original bidding documents. They are
legally incorporated into the contract and typically take
precedence over previously issued drawings and
specifications. Specifications (Option A) and drawings (Option
,B) are part of the contract documents but are subordinate to
addenda. General conditions (Option D) are contractual terms
and do not override project-specific modifications.
What is the minimum recommended curing time for concrete
before removing vertical formwork under normal
temperature conditions?
a. 12 hours
b. 24 hours
c. 48 hours
d. 7 days
✔️ Correct Answer: B
Rationale: For vertical surfaces such as columns and walls,
formwork can generally be removed after 24 hours if the
concrete has achieved sufficient strength to support its own
weight and resist environmental loads. This timeframe is
based on normal curing conditions with adequate
temperatures. Option A (12 hours) is typically too soon and
may result in surface damage. Option C (48 hours) and Option
D (7 days) are longer than necessary for vertical forms, though
7 days is often required for structural slabs.
Florida law mandates that a Notice of Commencement must
be recorded in the official records when the construction
project value exceeds which threshold?
a. $1,000
b. $2,500
c. $5,000
, d. $10,000
✔️ Correct Answer: B
Rationale: Florida Statutes, Chapter 713, require a Notice of
Commencement to be recorded for any improvement to real
property where the contract price exceeds $2,500. This
document establishes the commencement date and provides
public notice to potential lienors. Option A is too low, Option
C applies to the threshold for the owner's notice to
contractors, and Option D is incorrect.
What is the maximum allowable height for a stair riser per the
Florida Building Code?
a. 6 inches
b. 7 inches
c. 7¾ inches
d. 8 inches
✔️ Correct Answer: C
Rationale: The Florida Building Code limits stair riser height to
a maximum of 7¾ inches to ensure safety and uniformity,
reducing the risk of tripping and falls. Riser heights must also
be uniform within a flight to prevent uneven step heights.
Option A (6 inches) is more restrictive than code, Option B (7
inches) is a common misconception, and Option D (8 inches)
exceeds the maximum allowable limit.
Which type of footing is most appropriate for construction on
poor soil conditions with low bearing capacity?