CPI Safety Standards & Regulations 2 — Questions and Answers
Question 1: Under OSHA's Lockout/Tagout (LOTO) standard 29 CFR 1910.147, which action must be performed FIRST before servicing energized equipment?
- Notify all affected employees
- Apply a lockout device to the energy isolating device
- Verify zero energy state with a test instrument
- Shut off the equipment using the normal stopping procedure (Correct answer)
Correct answer: Shut off the equipment using the normal stopping procedure
LOTO procedures require the equipment to be turned off using its normal stopping procedure before isolating the energy source.
Question 2: Which NFPA standard governs the installation of electrical wiring and equipment in the United States?
- NFPA 25
- NFPA 70 (National Electrical Code) (Correct answer)
- NFPA 101
- NFPA 72
Correct answer: NFPA 70 (National Electrical Code)
NFPA 70, the National Electrical Code (NEC), is the benchmark for safe electrical design, installation, and inspection.
Question 3: A CPI technician is working in a confined space that has previously held flammable vapors. What is the minimum atmospheric oxygen level considered safe for entry?
- 16%
- 18%
- 19.5% (Correct answer)
- 21%
Correct answer: 19.5%
OSHA defines an oxygen-deficient atmosphere as below 19.5%, so 19.5% is the minimum acceptable level for safe entry.
Question 4: Which class of fire extinguisher is specifically rated for use on energized electrical equipment?
- Class A
- Class B
- Class C (Correct answer)
- Class D
Correct answer: Class C
Class C extinguishers use non-conductive agents and are rated for fires involving energized electrical equipment.
Question 5: According to OSHA 29 CFR 1926 Subpart R, when must fall protection be provided for workers on walking/working surfaces with an unprotected edge?
- At 4 feet in general industry
- At 6 feet in construction (Correct answer)
- At 8 feet on scaffolding
- At 10 feet on ladders
Correct answer: At 6 feet in construction
OSHA's construction standard (29 CFR 1926.502) requires fall protection at 6 feet above a lower level.
Question 6: What does the acronym 'GFI' or 'GFCI' stand for in electrical safety?
- Ground Fault Circuit Interrupter (Correct answer)
- General Fault Current Indicator
- Ground Frequency Control Interface
- Grounded Fixed Circuit Isolator
Correct answer: Ground Fault Circuit Interrupter
GFCI stands for Ground Fault Circuit Interrupter, a device that protects against ground faults by cutting power within milliseconds.
Question 7: Under the Hazard Communication Standard (HazCom 2012), how many sections are required in a Safety Data Sheet (SDS)?
- 8
- 12
- 16 (Correct answer)
- 20
Correct answer: 16
OSHA's HazCom 2012 aligns with GHS and requires SDS documents to have exactly 16 standardized sections.
CPI Safety Standards & Regulations 2
Under OSHA's Lockout/Tagout (LOTO) standard 29 CFR 1910.147, which action must be performed FIRST before servicing energized equipment?