A project records 3 OSHA-recordable cases over 120,000 work hours. Using the standard 200,000-hour multiplier, what is the recordable incident rate?
Correct Answer
B) 5.0
The rate is 3 x 200,000 / 120,000 = 5.0. Other choices use half the multiplier, add one case, or divide by 60,000 hours.
Why This Is the Correct Answer
The rate is 3 x 200,000 / 120,000 = 5.0. Other choices use half the multiplier, add one case, or divide by 60,000 hours.
Why the Other Options Are Wrong
Option A: 2.5
incident rate, choice a: 2.5 backs into 0.5 when divided by 5.0; the accepted setup gives 1 on that same base.
Option C: 7.5
incident rate, choice c: 7.5 backs into 1.5 when divided by 5.0; the accepted setup gives 1 on that same base.
Option D: 10.0
incident rate, choice d: 10.0 backs into 2 when divided by 5.0; the accepted setup gives 1 on that same base.
Memory Technique
Keep a tab beside incident rate: if one number is skipped, the option drifts away from 5.0.
Reference Hint
Open 29 CFR 1926 OSHA Construction Standards; use OSHA incident-rate formula to confirm that The rate is 3 x 200,000 / 120,000 = 5.0.
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