Jobsite Safety and Regulations Flashcards
7 cards from real Master Plumber Exam practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Jobsite Safety and Regulations flashcards as text
What OSHA standard specifically governs excavation and trenching safety for plumbing contractors?
Answer: 29 CFR 1926.650-652
OSHA 29 CFR 1926 Subpart P (sections 650-652) specifically covers excavations and trenching safety requirements in construction.
A master plumber notices a 'competent person' has not inspected a trench after a rainstorm. What should happen BEFORE workers re-enter?
Answer: A competent person must re-inspect and approve re-entry
OSHA requires a competent person to inspect excavations after rain or other hazard-increasing events before workers are permitted to re-enter.
Which personal protective equipment is required when operating a pipe threading machine?
Answer: Safety glasses and cut-resistant gloves
Safety glasses protect against metal chips and cutting fluid splatter, while cut-resistant gloves protect hands from sharp pipe threads and the cutting die during pipe threading.
Under the National Electrical Code (NEC) and plumbing safety practice, a plumber bonding a gas line must ensure the bonding jumper is sized to handle what?
Answer: The fault current that could flow through it
Bonding jumpers on gas piping must be sized to carry the maximum fault current that could flow in the event of an electrical fault contacting the pipe.
A plumber is cutting cast iron pipe with a grinder. What respiratory protection is required for crystalline silica dust exposure?
Answer: N95 filtering facepiece respirator
OSHA's silica standard (29 CFR 1926.1153) requires at minimum an N95 respirator when cutting materials that generate respirable crystalline silica dust.
Under OSHA's heat illness prevention guidance, at what heat index level is a jobsite considered to be in the 'High' risk category?
Answer: 91–103°F
OSHA classifies a heat index of 91–103°F as 'High' risk, requiring additional precautions such as frequent rest breaks, shade, and hydration.
A plumber is required to have a confined space permit. Which item does NOT need to be on the permit?
Answer: The cost estimate for the job
OSHA's permit-required confined space standard (29 CFR 1910.146) specifies required permit elements including atmospheric tests, authorized entrants, and duration — but not job cost.