SPED Codes, Regulations & Safety Practices 3 — Questions and Answers
Question 1: According to ASME B31.3, what examination method is mandatory for all circumferential butt welds in Category M (Severe Cyclic Conditions) fluid service?
- Random radiographic examination
- 100% radiographic or ultrasonic examination (Correct answer)
- Visual examination only
- Magnetic particle testing
Correct answer: 100% radiographic or ultrasonic examination
ASME B31.3 requires 100% radiographic or ultrasonic examination of circumferential butt welds in Category M severe cyclic service.
Question 2: EPA's Risk Management Program (RMP) under 40 CFR Part 68 requires facilities to develop an emergency response plan when they have what type of covered process?
- Any process using hazardous chemicals
- A Program 2 or Program 3 covered process (Correct answer)
- Only Program 3 processes
- Processes with more than 10,000 lbs of any chemical
Correct answer: A Program 2 or Program 3 covered process
Facilities with Program 2 or Program 3 covered processes under 40 CFR Part 68 must develop and implement an emergency response program.
Question 3: What is the purpose of a Piping and Instrumentation Diagram (P&ID) safety review in the context of HAZOP studies?
- To verify that all welds meet ASME code
- To systematically identify potential deviations from design intent that could cause hazards (Correct answer)
- To calculate pressure drops across the system
- To confirm material specifications match purchase orders
Correct answer: To systematically identify potential deviations from design intent that could cause hazards
HAZOP (Hazard and Operability) studies use P&IDs to systematically identify potential deviations from design intent that could create safety or operability hazards.
Question 4: Under ASME B31.4 Pipeline Transportation Systems for Liquids, what is the maximum hoop stress allowed as a percentage of SMYS in Class 1 locations?
- 60%
- 72% (Correct answer)
- 80%
- 50%
Correct answer: 72%
ASME B31.4 allows a maximum hoop stress of 72% of SMYS (Specified Minimum Yield Strength) for liquid pipelines in Class 1 locations.
Question 5: Which NFPA standard specifically addresses the installation of sprinkler systems and is most relevant to fire protection piping design?
- NFPA 13 (Correct answer)
- NFPA 70
- NFPA 30
- NFPA 58
Correct answer: NFPA 13
NFPA 13, Standard for the Installation of Sprinkler Systems, governs the design and installation of fire protection sprinkler piping.
Question 6: In the context of OSHA 29 CFR 1910.147 Lockout/Tagout (LOTO), which energy source must be controlled when performing maintenance on a pressurized piping system?
- Electrical energy only
- All hazardous energy sources including stored pressure energy (Correct answer)
- Mechanical energy only
- Thermal energy only
Correct answer: All hazardous energy sources including stored pressure energy
OSHA LOTO standard requires control of all hazardous energy sources, including stored pressure energy in piping systems, before maintenance begins.
Question 7: API RP 580 Risk-Based Inspection (RBI) methodology is used primarily to:
- Design new piping systems to code
- Prioritize inspection resources based on probability and consequence of failure (Correct answer)
- Calculate corrosion allowances for piping
- Qualify welding procedures for pressure piping
Correct answer: Prioritize inspection resources based on probability and consequence of failure
API RP 580 provides guidelines for risk-based inspection programs that prioritize inspection resources based on the probability and consequence of equipment failure.
SPED Codes, Regulations & Safety Practices 3
According to ASME B31.3, what examination method is mandatory for all circumferential butt welds in Category M (Severe Cyclic Conditions) fluid service?