Licensed Electrical Contractor Safety and OSHA Regulations 3

Question 1

Under NFPA 70E, what is the 'restricted approach boundary' for shock protection?

Accepted Answer

The distance within which a shock hazard exists requiring special precautions

Answer

The distance at which an arc flash can cause a curable burn

Answer

The closest distance an unqualified person may approach energized parts

Answer

The boundary beyond which no PPE is required

Question 2

Which of the following conditions would require an Occupational Safety and Health Administration (OSHA) Form 300 Log entry for an electrical incident?

Accepted Answer

A worker misses one day of work after being shocked

Answer

A worker receives a minor electrical shock with no medical treatment beyond first aid

Answer

A worker is shocked but returns to full duty immediately

Answer

A worker receives first aid treatment only for a burn

Question 3

An electrical contractor is working in a permit-required confined space that contains atmospheric hazards. Which OSHA standard applies?

Accepted Answer

29 CFR 1910.146

Answer

29 CFR 1910.147

Answer

29 CFR 1926.405

Answer

29 CFR 1910.303

Question 4

What minimum AFCI protection does the 2023 NEC require for branch circuits supplying all 15A and 20A, 120V outlets in a bedroom?

Accepted Answer

Arc-fault circuit interrupter (AFCI) protection

Answer

Ground-fault circuit interrupter (GFCI) only

Answer

Both AFCI and GFCI protection on the same circuit

Answer

No special protection is required

Question 5

Under OSHA 29 CFR 1926.405(j), extension cords used on construction sites must be which type?

Accepted Answer

Type S, SO, ST, STO, SJ, SJO, SJT, or SJTO listed for hard or extra-hard usage

Answer

Any cord listed by UL for indoor use

Answer

Any 14 AWG or larger cord

Answer

Type NM cable is acceptable as an extension cord

Question 6

What is the purpose of a 'job hazard analysis' (JHA) before starting electrical work?

Accepted Answer

To systematically identify hazards and controls before work begins

Answer

To satisfy OSHA recordkeeping requirements after an incident

Answer

To determine insurance liability for the project

Answer

To document completed safety training for workers

Question 7

When using a voltage detector (tick tracer) to verify a circuit is de-energized, what additional verification step is required by NFPA 70E?

Accepted Answer

Test the detector on a known energized source before and after testing the circuit

Answer

Test the circuit at three separate points

Answer

Have a second qualified person independently test the circuit

Answer

Document the test results on the lockout/tagout permit