Pipefitter Safety Procedures and Codes 5 — Questions and Answers
Question 1: What does a 'barricade' warning tape (yellow/black stripes) indicate on a job site, compared to 'danger' tape (red/white)?
- Barricade tape = immediate hazard; danger tape = potential hazard
- Barricade tape = potential hazard; danger tape = immediate life-threatening hazard (Correct answer)
- They are interchangeable
- Barricade tape is for equipment areas only
Correct answer: Barricade tape = potential hazard; danger tape = immediate life-threatening hazard
Yellow/black 'caution' or barricade tape indicates a potential hazard, while red/white 'danger' tape marks an area with an immediate life-threatening hazard.
Question 2: Under OSHA's Hazard Communication Standard, within how many days must an employer provide an SDS to an employee who requests it?
- Immediately upon request (Correct answer)
- 24 hours
- 72 hours
- 5 business days
Correct answer: Immediately upon request
OSHA's HazCom standard requires that SDSs be readily accessible to employees during their work shift, and upon request they must be provided immediately.
Question 3: Which ASME standard applies to power piping systems, such as steam lines in industrial plants?
- ASME B31.1 (Correct answer)
- ASME B31.3
- ASME B31.8
- ASME B31.11
Correct answer: ASME B31.1
ASME B31.1 is the Power Piping Code, covering steam, water, and other fluid systems in power and industrial plants.
Question 4: What is the primary purpose of a Job Hazard Analysis (JHA) before beginning a pipefitting task?
- To estimate labor costs for the task
- To identify and mitigate hazards for each step of a task (Correct answer)
- To assign workers their specific roles
- To document material quantities needed
Correct answer: To identify and mitigate hazards for each step of a task
A JHA systematically identifies potential hazards at each step of a job and establishes controls to eliminate or reduce risk before work begins.
Question 5: A pipefitter is about to cut into an existing line. Which procedure should be performed FIRST?
- Don appropriate PPE
- Verify the line is isolated, de-energized, and depressurized using LOTO (Correct answer)
- Apply a hot work permit
- Notify the shift supervisor
Correct answer: Verify the line is isolated, de-energized, and depressurized using LOTO
Lockout/Tagout (LOTO) to isolate, de-energize, and depressurize the line must be completed first to prevent unexpected release of energy or hazardous materials.
Question 6: What does 'IDLH' stand for in occupational safety, and what does it represent?
- Immediately Dangerous to Life or Health — a concentration posing immediate threat of death or serious injury (Correct answer)
- Internal Damage Limit Hazard — maximum allowable pipe stress
- Industrial Design Load Hazard — structural failure threshold
- Instantaneous Discharge Level High — relief valve setting
Correct answer: Immediately Dangerous to Life or Health — a concentration posing immediate threat of death or serious injury
IDLH stands for Immediately Dangerous to Life or Health and represents exposure concentrations that pose immediate threats of death, serious injury, or impaired escape ability.
Question 7: Under the OSHA Respiratory Protection Standard (29 CFR 1910.134), what must be performed before an employee uses a tight-fitting respirator for the first time?
- A medical evaluation only
- A fit test and medical evaluation (Correct answer)
- A written test on respirator use
- Supervisor approval only
Correct answer: A fit test and medical evaluation
OSHA 29 CFR 1910.134 requires both a medical evaluation to ensure the worker can physically wear a respirator and a fit test to verify the specific respirator seals properly.
Pipefitter Safety Procedures and Codes 5
What does a 'barricade' warning tape (yellow/black stripes) indicate on a job site, compared to 'danger' tape (red/white)?