A project logged 2 DART cases and 80,000 labor-hours. What is the DART rate using the 200,000-hour base?
Correct Answer
D) 5.0
DART rate is 2 x 200,000 / 80,000 = 5.0.
Why This Is the Correct Answer
DART rate is 2 x 200,000 / 80,000 = 5.0.
Why the Other Options Are Wrong
Option A: 2.5
dart rate calculation, choice a: 2.5 is produced by 200,000 / 80,000. The error is using that partial/alternate setup.
Option B: 4.0
dart rate calculation, choice c: 4.0 backs into 0.8 when divided by 5.0; the accepted setup gives 1 on that same base.
Option C: 8.0
dart rate calculation, choice d: 8.0 backs into 1.6 when divided by 5.0; the accepted setup gives 1 on that same base.
Memory Technique
Picture a field note labeled DART rate calculation: finish every operation before accepting 5.0.
Reference Hint
Open 29 CFR Part 1926 (OSHA Construction Standards), 1926-2023 / PSI OSHA Excerpts 2025; use OSHA reporting / recordkeeping topic to confirm that DART rate is 2 x 200,000 / 80,000 = 5.0.
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