Question 1

What is the hierarchy of controls?

Accepted Answer

From most to least effective: elimination, substitution, engineering controls, administrative controls, PPE. ISO 45001 §8.1.2 requires applying it in that order.

Question 2

How do I calculate TRIR and LTIFR?

Accepted Answer

TRIR = recordable injuries × 200,000 / hours worked. LTIFR = lost-time injuries × 1,000,000 / hours worked. Severity rate = days lost × 1,000 / hours.

Question 3

What are the noise exposure limits at work?

Accepted Answer

EU/France: lower action 80 dB(A) LEX,8h (provide hearing protection), upper action 85 dB(A) (mandatory wearing, signed zones, reduction program), absolute limit 87 dB(A) including attenuation. Morocco practice aligns to 85 dB(A) per arrêté 93-08 protections.

Question 4

What are the 7 LOTO steps?

Accepted Answer

Prepare, notify, shut down, isolate all energy sources, lock and tag with personal locks, release stored energy, verify zero energy before work.

Question 5

Is an energy audit mandatory in Morocco?

Accepted Answer

Yes for large consumers: law 47-09 and decree 2-17-746 require periodic energy audits by approved auditors above consumption thresholds (industry ≥ 1500 toe/year; tertiary/transport ≥ 500 toe/year), with reports to AMEE.

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