Risk Assessment and Mitigation Flashcards
7 cards from real STEAMFITTER practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Risk Assessment and Mitigation flashcards as text
A steamfitter is asked to weld on a pipe that previously carried an unknown chemical. What is the FIRST risk mitigation step before welding?
Answer: Purge and verify the pipe is clean using a hot-work permit process
Hot-work permits require verification that the pipe has been purged, cleaned, and tested before any ignition source is introduced.
Which type of risk assessment is conducted BEFORE a project begins to identify potential hazards proactively?
Answer: Preliminary hazard analysis (PHA)
A Preliminary Hazard Analysis is a proactive, pre-project technique for identifying and ranking hazards before work starts.
When using a pressure relief valve (PRV) as an engineering control on a steam system, what risk does it primarily mitigate?
Answer: Overpressure conditions that could cause pipe rupture
A PRV automatically vents excess pressure to prevent the system from exceeding its maximum allowable working pressure (MAWP).
A steamfitter is working in a trench to install underground steam lines. Soil conditions are sandy and the trench is 6 feet deep. What is the MINIMUM required protective system?
Answer: Sloping, shoring, or trench box adequate for Type C soil conditions
OSHA 1926 Subpart P requires a protective system for any trench 5 feet or deeper; sandy soil is Type C, requiring the most conservative slope or shoring.
Which document formally authorizes a worker to perform hot work (welding, cutting) in a facility?
Answer: Hot Work Permit
A Hot Work Permit documents safety checks, fire watch assignments, and approval before welding or cutting begins.
Fall protection is required by OSHA in general industry when a worker is exposed to a fall of what minimum height?
Answer: 4 feet
OSHA 29 CFR 1910.28 requires fall protection for walking/working surfaces at 4 feet or greater in general industry settings.
A risk register is BEST described as:
Answer: A documented inventory of identified risks, their ratings, and assigned mitigation actions
A risk register is a living project document that tracks hazards, probability/severity ratings, controls, and responsible parties.