In the equipment grounding diagram section, which labeled layer is immediately above BONDING JUMPER?
Correct Answer
D) GROUND BUS
The section stacks the layers vertically; GROUND BUS is printed immediately above BONDING JUMPER.
Why This Is the Correct Answer
The section stacks the layers vertically; GROUND BUS is printed immediately above BONDING JUMPER.
Why the Other Options Are Wrong
Option A: GROUND ROD
GROUND ROD is below BONDING JUMPER, not immediately above it.
Option B: WATER PIPE BOND
WATER PIPE BOND is an outside or terminal layer in the stack, not the adjacent layer asked for.
Option C: SERVICE GEAR
SERVICE GEAR is a different layer in the same section, but it is not the one directly above BONDING JUMPER.
Memory Technique
Layer-order hook for equipment-grounding diagram layer order: one band up from BONDING JUMPER, then stop.
Reference Hint
Open Sheet E-741; locate BONDING JUMPER in the section and read the layer immediately above it.
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 Β· 70% to pass
Contract Administration
60 questions Β· 70% to pass
Project Management
60 questions Β· 70% to pass
Related Study Resources
Previous Question
A small emergency repair is authorized on a time-and-material basis. Which documentation is central to pricing the work?
Next Question
Resilient flooring is scheduled over a new concrete slab, but moisture testing has not been completed. The flooring crew wants to install to meet the turnover date. What is the correct field decision?
