In the ADU conversion file, a crew installs 84 door stops at 5 minutes each. How many labor hours are used?
Correct Answer
A) 7 hours.
The time is 84 x 5 = 420 minutes. Since 60 minutes equal 1 hour, 420 / 60 = 7 hours.
Why This Is the Correct Answer
The time is 84 x 5 = 420 minutes. Since 60 minutes equal 1 hour, 420 / 60 = 7 hours.
Why the Other Options Are Wrong
Option B: 6.2 hours total.
6.2 hours total. is below the supported result for finish hardware labor calculation; it likely skips a premium-pay or employer-cost component.
Option C: 7.6 hours total.
7.6 hours total. is above the supported result for finish hardware labor calculation; it likely pays the wrong premium tier or counts the same hours twice.
Option D: 8.4 hours total.
8.4 hours total. is above the supported result for finish hardware labor calculation; it likely pays the wrong premium tier or counts the same hours twice.
Memory Technique
Who controlled time, who paid cslb, where is the Checking Adu record?
Reference Hint
Study anchor (closed-book): memorize Finish hardware labor calculation from CSLB B General Building Study Guide; California Building Code, Title. / CSLB B General Building Study Guide finish carpentry labor estimating; know the rule or calculation trigger without relying on exam-room lookup.
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