Free AL-GC Practice Questions

Question 1

During a morning trench inspection, a superintendent finds an employee preparing to enter a 7-foot-deep excavation in Type C soil. No shield, shoring, or compliant slope is in place, and the nearest ladder would require 40 feet of lateral travel. Which set of conditions must be in place before entry resumes?

Accepted Answer

Install compliant cave-in protection, obtain the competent-person inspection, and provide safe egress within 25 feet before anyone enters

Answer

Move the spoil pile 2 feet back, assign a spotter, and allow entry for the short task

Answer

Place a ladder within 25 feet and allow entry because protection is unnecessary until the trench reaches 8 feet

Answer

Slope one wall, leave the opposite wall vertical, and document the inspection after the shift

Question 2

On a renovation project, the owner's field representative orally directs the superintendent to move a rated wall 2 feet. The contract states that only the owner's contracting officer may authorize changes. The relocation is not needed for safety and does not block unrelated work. The contractor should:

Accepted Answer

Document the directive, hold the relocation, give required notice, obtain authorized direction, and continue unaffected work

Answer

Relocate the wall immediately, then submit a lump-sum proposal after installation is complete

Answer

Pending authorization, suspend all work in the renovated area, including trades unaffected by the proposed wall move, until a fully executed change order is issued

Answer

Direct the drywall subcontractor to perform the relocation without compensation to preserve the milestone

Question 3

Fresh structural concrete containing highly porous lightweight aggregate is specified at 5% to 7% air. A technician uses a pressure air meter and reports 5.8%. Before accepting the concrete on the basis of that reading, how should the result be handled?

Accepted Answer

Set aside the pressure-meter result and verify air content with a volumetric method suitable for highly porous aggregate concrete

Answer

Accept the reading because it falls within the project range and the same meter is used for normal-weight concrete

Answer

Subtract a field-estimated aggregate correction from the pressure reading and accept if the adjusted value remains in range

Answer

Repeat the same pressure test on a second sample and average the two readings

Question 4

A fixed annealed-glass pane beside an interior corridor has an exposed area of 12 square feet. Its bottom edge is 12 inches above the floor, its top edge is 72 inches above the floor, and the walking surface is 18 inches from the glass. No guard, barrier, or code exception applies. Which corrective action is required?

Accepted Answer

Replace it with listed safety glazing, such as fully tempered or qualifying laminated glass

Answer

Leave it in place because the pane is fixed and its lower edge is 12 inches above the floor

Answer

Replace it with heat-strengthened glass of the same thickness

Answer

Apply ordinary solar-control film and add a visible marking across the existing annealed pane

Question 5

An estimator calculates a fully loaded project cost of $1,280,000, including direct costs, project indirect costs, and allocated home-office overhead. Management requires a 20% margin on the final selling price. What bid price meets that target before alternates?

Accepted Answer

$1,600,000, which produces a 20% margin on price

Answer

$1,536,000, which applies a 20% markup to cost

Answer

$1,664,000, which treats a 30% markup as the target

Answer

$1,706,667, which produces a 25% margin on price

Question 6

A field density test reports 126 pcf wet density at 10% moisture content. The applicable Proctor test gives a maximum dry density of 120 pcf, and the specification requires at least 95% relative compaction. Rounding the final percentage to the nearest 0.1%, which result is correct?

Accepted Answer

95.5%; passes, after converting wet density to dry density

Answer

105.0%; passes, because the wet field density is divided directly by the Proctor maximum

Answer

94.5%; fails, because 10% of the wet density is subtracted before comparison

Answer

95.5%; fails, because field dry density must equal the laboratory maximum rather than the specified 95%

Question 7

A new accessible ramp segment has a 1:13 running slope, a 5.5-inch total rise, 36 inches of clear width, and 60-inch landings. No other condition triggers handrails. Which conclusion is correct?

Accepted Answer

The omission is acceptable; with no other trigger, a 5.5-inch rise does not require ramp handrails

Answer

Handrails are required because a running slope steeper than 1:20 triggers them on both sides

Answer

Handrails, edge protection, and 42-inch guards are required because the walking surface is classified as a ramp

Answer

The route must be closed until handrails are added, even though the rise is less than 6 inches

Question 8

After wind-driven rain, water appears at both jambs below a brick-veneer window. Through-wall flashing is present above the lintel, and the center weeps are open, but the flashing terminates flat at each jamb without turned-up ends. The missing detail is:

Accepted Answer

Provide turned-up end dams at both jambs and integrate them continuously with the through-wall flashing

Answer

Add more open head-joint weeps near the center of the lintel without changing the flashing ends

Answer

Increase the projection of the steel lintel beyond both jambs to move drainage away from the opening

Answer

Apply a clear water-repellent coating to the veneer below the window and leave the flashing terminations unchanged

Question 9

During steel erection, two open-web steel joists have been set, but the specified bridging has not been installed. The crew proposes placing bundles of metal deck on the joists to save crane time. The superintendent's instruction should be:

Accepted Answer

Install the specified bridging and required stability restraints before any construction load is placed

Answer

Distribute each bundle across both joists at panel points and keep its weight below the joists' published capacity

Answer

Set one bundle at a time near the joist bearings while erectors monitor the top chords for rotation

Answer

Tack-weld a temporary angle to one web member, then remove it after deck fastening is complete

Question 10

An HVAC installer cuts one web member of a metal-plate-connected roof truss to clear a duct. Adjacent trusses remain undamaged, and the temporary erection bracing is intact. The best immediate response is:

Accepted Answer

Restrict loading in the affected area, shore the damaged truss as needed, and obtain a written repair detail from the truss designer

Answer

Shut down roof-framing and rooftop work across the building until every truss is inspected and the damaged truss is replaced

Answer

Sister a 2x4 to the cut web with a field-selected nail pattern and continue the duct installation

Answer

Relocate the required permanent bracing to an adjacent undamaged truss and proceed with the duct

Free AL-GC Practice Questions

Domain 1: General Requirements

Question 1

Question 2

Domain 2: Site Construction

Question 3

Domain 3: Concrete

Question 4

Domain 4: Masonry

Question 5

Domain 5: Metals

Question 6

Domain 6: Wood

Question 7

Domain 8: Doors, Windows, and Glazing

Question 8

Domain 12: Procurement and Contracting Requirements

Question 9

Question 10

The rest of the AL-GC blueprint

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