A crew of 4 workers works 7.5 hours each on demolition. At $68 per labor-hour burdened cost, what is the labor cost?
Correct Answer
C) $2,040.
Total labor-hours are 4 x 7.5 = 30. At $68 per hour, 30 x 68 = $2,040.
Why This Is the Correct Answer
Total labor-hours are 4 x 7.5 = 30. At $68 per hour, 30 x 68 = $2,040.
Why the Other Options Are Wrong
Option A: $1,530.
$1,530. is below the supported result for labor cost calculation; it likely skips a premium-pay or employer-cost component.
Option B: $1,870.
$1,870. is below the supported result for labor cost calculation; it likely skips a premium-pay or employer-cost component.
Option D: $2,720.
$2,720. is above the supported result for labor cost calculation; it likely pays the wrong premium tier or counts the same hours twice.
Memory Technique
Checking Demolition payroll: time, premium, reimbursement, proof in separate buckets.
Reference Hint
Study anchor (closed-book): memorize Labor cost calculation from CSLB B General Building Study Guide; California Building Code, Title. / CSLB B General Building Study Guide labor estimating; know the rule or calculation trigger without relying on exam-room lookup.
More Class B Trade Questions
A 2-inch horizontal sanitary branch must be installed at 1/4 inch fall per foot. What total fall is needed over a 24-foot run?
A 4-inch building drain is laid out with a required 1/8 inch fall per foot. What fall is required across 40 feet?
A rooftop unit schedule shows 3 tons of cooling. Using 12,000 Btu per hour per ton, what cooling capacity is this?
A pump motor is listed as 2 horsepower, and the coordination table asks for watts. Using 746 watts per horsepower, what is the approximate motor power?
A slab is 30 feet long, 18 feet wide, and 4 inches thick. How many cubic yards of concrete are needed before waste?
A footing is 80 feet long, 2 feet wide, and 12 inches deep. How many cubic yards of concrete are required before waste?
A patio subgrade must drain at 2 percent away from the building for 20 feet. What total drop is required?
A building pad needs 150 compacted cubic yards of fill. If the borrow material shrinks 10 percent after compaction, about how many loose cubic yards should be hauled in?
A roofing estimate shows 2,850 square feet of roof area. How many roofing squares is that?
A waterproof deck surface is 14 feet deep and must slope 1/4 inch per foot to the drain. What vertical fall is needed?
