A pool site plan is drawn at 1/4 inch = 1 foot 0 inches. The water-surface length measures 8-1/4 inches on the drawing. What is the actual length?
Plan Reading And Estimating
Question · Easy
OSHA fall heights, to scale
Short
A rectangular pool floor is 16 feet by 32 feet and 6 inches thick. How many cubic yards of concrete are required for the floor only, with no waste?
Question · Medium
A grading plan is drawn at 1/8 inch = 1 foot 0 inches. The pool excavation outline measures 4 inches by 2-1/2 inches and the cut is 6 feet deep. What is the bank excavation volume of that rectangle, with no slope allowance?
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A shotcrete takeoff shows 144 linear feet of 6-foot-high wall at 6 inches thick plus an 18-foot by 36-foot floor at 6 inches thick. Add 10 percent for waste and rebound. How many cubic yards should be ordered?
Question · Hard
Per NMAC 14.6.6, which work is inside the GS-25 Swimming Pools classification?
Divide by twenty-seven
A 16-foot by 32-foot pool floor is reinforced with #4 bars at 12 inches on center each way, including the end bars. Using 0.668 pounds per foot for #4, what is the steel weight, with no lap or waste?
Before a pool excavation begins, what must the contractor do regarding underground utilities?
Sitework And Excavating
For a simple-slope excavation 20 feet deep or less in Type C soil, what is the OSHA maximum allowable slope?
A pool hole is 8 feet deep in Type C soil and will be sloped at the OSHA maximum simple slope. How far must the top of each sloped face set back from the bottom edge?
Six feet: a hard-hat anthem
A 6-foot-deep pool excavation in Type B soil will be a simple slope at the OSHA maximum. What is the horizontal setback from the bottom edge to the top of the cut on each side?
How far from the edge of a pool excavation must spoil piles and other materials be kept unless a retaining device is used?
A pool cut is estimated at 120 bank cubic yards. If the soil swells 25 percent when excavated, how many loose cubic yards must be hauled?
In a trench excavation 4 feet or more in depth, a stairway, ladder, ramp, or other safe means of egress must be located so that no employee travels more than how far laterally to reach it?
A rectangular pool excavation measures 18 feet by 36 feet at the bottom and is 6 feet 6 inches deep, with vertical faces to be shored. What is the bank volume of that box, with no waste?
Employees in a pool excavation generally must be protected from cave-ins by a protective system except when the excavation is entirely in stable rock, or when which other condition is met?
What is the OSHA maximum allowable simple slope for Type A soil in an excavation 20 feet deep or less that is open more than 24 hours?
Who must inspect a pool excavation, the adjacent area, and any protective system before each shift and after a rainstorm?
A utility trench beside a pool is 80 feet long and 6 feet deep in Type C soil. The bottom is 3 feet wide and the sides are sloped at 1-1/2:1 to the surface. What is the bank excavation volume?
Which soil condition most often requires over-excavation and replacement with engineered fill under a concrete pool shell?
Water is seeping into a pool excavation and standing in the bottom. What is the correct action before workers re-enter the hole?
A pool backfill requires 90 compacted cubic yards. The borrow shrinks 10 percent from bank volume to compacted volume. How many bank cubic yards must be excavated from the borrow pit?
Sloping or benching for a pool excavation deeper than 20 feet must be designed by whom?
Average-end-area takeoff: one end of a pool cut is 8 feet wide by 5 feet deep, the other end is 14 feet wide by 7 feet deep, and the length is 50 feet. What is the bank volume?
Which statement about benching as a protective system is correct under OSHA Appendix B?
A #4 reinforcing bar has which nominal diameter?
Forming And Reinforcing
For concrete cast against and permanently exposed to earth, what is the ACI 318 minimum concrete cover to reinforcing bars?
A pool wall delivery is 40 pieces of 20-foot #4 bar. Using 0.668 pounds per foot, what is the delivered steel weight?
The plans require a Class B tension lap of 40 bar diameters for #5 bars. What is the required lap length?
How should reinforcing bars be supported in a pool floor so the specified cover is maintained?
A 40-foot-long pool wall is 5 feet 6 inches high and uses #4 verticals at 12 inches on center, including the end bars, plus four continuous #4 horizontals. Using 0.668 pounds per foot and ignoring laps, what is the steel weight?
Where should adjacent lap splices in a pool wall curtain be located, unless the drawings require otherwise?
How should intersecting pool reinforcing bars be secured before concrete or shotcrete is placed?
What is the primary purpose of bracing and aligning pool wall forms before a cast-in-place pour?
When should form-release agent be applied to pool wall forms?
How should reinforcing bars be stored on a pool site before placing?
For shotcrete encapsulation, how should bars in a pool wall curtain be spaced unless the engineer specifies otherwise?
Why are dowels placed between a pool floor and the walls?
Welded-wire reinforcement in a pool floor or deck should be placed where?
A deep-end cage uses 180 linear feet of #5 bar. Using the CRSI nominal weight of 1.043 pounds per foot, what is the steel weight?
Grade 60 reinforcing steel is specified for a pool shell. What does the 60 represent?
How many #4 vertical bars at 6 inches on center, including both end bars, are required in a straight 20-foot pool wall?
When may cast-in-place pool wall forms be stripped?
How many cubic feet are in one cubic yard of concrete?
Concrete
A ready-mix load arrives at a pool deck pour stiffer than the crew prefers. What is the correct response?
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