CPI Safety Standards & Regulations 3 — Questions and Answers
Question 1: Which ANSI/ISEA standard specifies requirements for high-visibility safety apparel (HVSA) worn by workers near traffic?
- ANSI/ISEA 105
- ANSI/ISEA 107 (Correct answer)
- ANSI Z89.1
- ANSI Z87.1
Correct answer: ANSI/ISEA 107
ANSI/ISEA 107 establishes performance requirements for high-visibility safety apparel and headwear.
Question 2: A CPI installer discovers that a conduit run will pass through a fire-rated wall. What is required at the penetration point?
- A strain relief connector
- A listed firestop system that maintains the wall's fire rating (Correct answer)
- Standard electrical tape wrap
- A weatherproof conduit fitting
Correct answer: A listed firestop system that maintains the wall's fire rating
NEC and building codes require a listed firestop system to restore the fire-resistance rating of any penetrated fire-rated assembly.
Question 3: According to OSHA, which personal protective equipment (PPE) is required when working with materials that produce dust above the permissible exposure limit (PEL)?
- A filtering facepiece respirator rated at minimum N95 (Correct answer)
- A standard surgical mask
- Safety glasses only
- A full-face shield without respiratory protection
Correct answer: A filtering facepiece respirator rated at minimum N95
An N95 or higher NIOSH-approved respirator is required when airborne dust concentrations exceed OSHA's PEL.
Question 4: What is the purpose of a 'toolbox talk' in a CPI work environment?
- To inventory tools at the start of each shift
- To conduct a brief safety meeting focused on daily hazards (Correct answer)
- To train workers on new equipment purchases
- To assign job tasks to crew members
Correct answer: To conduct a brief safety meeting focused on daily hazards
A toolbox talk is a short, informal safety meeting held on the job site to discuss specific hazards relevant to that day's work.
Question 5: When using a powder-actuated tool (PAT) to fasten materials, which safety requirement applies?
- Only supervisors may operate the tool
- Operators must be trained and the tool must not be loaded until ready to use (Correct answer)
- Eye protection alone is sufficient PPE
- The tool may be operated in any direction including upward
Correct answer: Operators must be trained and the tool must not be loaded until ready to use
OSHA requires PAT operators to be trained/certified, and tools must remain unloaded until immediately before use to prevent accidental discharge.
Question 6: Under NFPA 70E, what arc flash boundary must workers maintain unless wearing appropriate arc-rated PPE?
- Limited approach boundary
- Restricted approach boundary
- Arc flash boundary (Correct answer)
- Prohibited approach boundary
Correct answer: Arc flash boundary
The arc flash boundary is the distance at which a worker could receive a second-degree burn from an arc flash incident without arc-rated PPE.
Question 7: A CPI technician needs to work from a portable ladder. Which OSHA rule governs the angle at which an extension ladder must be positioned?
- 1:1 ratio (45 degrees)
- 3:1 ratio (about 72 degrees)
- 4:1 ratio (about 75 degrees) (Correct answer)
- 2:1 ratio (about 63 degrees)
Correct answer: 4:1 ratio (about 75 degrees)
OSHA requires extension ladders to be set at a 4:1 ratio (1 foot out for every 4 feet of height), approximately 75 degrees.
CPI Safety Standards & Regulations 3
Which ANSI/ISEA standard specifies requirements for high-visibility safety apparel (HVSA) worn by workers near traffic?