During overhead rough-in, EMT runs above an accessible ceiling are visibly sagging and tied to ceiling grid wires. What should the superintendent require?
Correct Answer
C) Have the raceways properly secured and independently supported according to the approved electrical installation requirements
Raceways must be installed with proper support so the electrical system is protected and maintainable. Sagging conduit tied to ceiling grid wires is a coordination and quality problem; concealment, end-only support, or an energized test does not make the installation acceptable.
Why This Is the Correct Answer
Raceways must be installed with proper support so the electrical system is protected and maintainable. Sagging conduit tied to ceiling grid wires is a coordination and quality problem; concealment, end-only support, or an energized test does not make the installation acceptable.
Why the Other Options Are Wrong
Option A: Leave the runs as installed because the ceiling will hide them
A ceiling tile hides the defect from view but does not support the raceway or prevent later damage and maintenance problems.
Option B: Support only the ends of each conduit run
End-only support leaves intermediate sagging and does not address the observed lack of secure support along the run.
Option D: The superintendent should accept the work if the circuits test energized
A circuit can energize even when the raceway installation is poorly supported; electrical function is not the same as installation quality.
Memory Technique
Pair raceway support coordination with the real field trigger, then choose the response that produces Have the raceways properly secured and independently supported according to the approved electrical installation requirements.
Reference Hint
Open Mechanical and Electrical Systems for Construction Managers, 4th Ed., 2024; use by topic index - raceways / supports to confirm that Raceways must be installed with proper support so the electrical system is protected and maintainable.
More NASCLA Questions
Bid instructions require bid security with each sealed bid. Which purpose should the estimator associate with that requirement?
A wood deck surface has 320 sf of coverage. Boards have a 5-1/2 in. actual face width, and the order includes an 8 percent cutting allowance. What linear footage is closest?
Using the dimensions shown for the stabilized construction entrance, what is the plan area?
A reroof area requires 14,720 sf of rigid insulation. Boards are 4 ft by 8 ft, and the order includes 5 percent waste. How many boards are needed?
Two addenda revise the drawings before bid day. What must a responsive bidder normally do with those addenda?
A utility trench is 180 ft long, 3 ft wide, and 7 ft deep with vertical sides inside a trench shield. What excavation volume is required?
A 120 ft long Type C trench is cut with a 4 ft bottom width and a 6 ft depth. If side slopes are 1-1/2 horizontal to 1 vertical, what excavation volume is closest?
A storm pipe run needs 240 ft of bedding, 4 ft wide and 6 in. thick. Including a 10 percent ordering allowance, how many cubic yards of bedding aggregate are needed?
A mass excavation produces 1,180 loose cubic yards of material for off-site disposal. End-dump trucks can haul 18 loose cubic yards per trip. What truck count is required?
An asphalt-shingle roof has a slope of 3:12. Under the IBC low-slope asphalt-shingle provisions, what underlayment arrangement is required?
People Also Study
Business & Financial Management
120 questions · 70% to pass
Contract Administration
60 questions · 70% to pass
Project Management
60 questions · 70% to pass