Tanker Safety and PPE Flashcards
7 cards from real Tanker Familiarization practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Tanker Safety and PPE flashcards as text
When must a lifeline and retrieval system be rigged before a worker enters a cargo tank?
Answer: Always, before any confined space entry regardless of atmosphere
A lifeline and retrieval system must be rigged for every confined space entry to enable non-entry rescue if the entrant becomes incapacitated.
Which color coding is standardly used on tankers to identify fire hoses dedicated to foam application?
Answer: Yellow
Foam system equipment is typically color-coded yellow on tankers to distinguish it from water fire-fighting lines.
What is the significance of the Lower Explosive Limit (LEL) in tanker safety monitoring?
Answer: The lowest concentration of flammable vapor that can ignite in air
LEL is the minimum vapor concentration in air capable of sustaining combustion; concentrations below LEL are too lean to ignite.
A tanker's inert gas system (IGS) is used primarily to prevent which hazard?
Answer: Explosive atmosphere in cargo tanks by maintaining oxygen below 8%
The IGS displaces oxygen in cargo tanks with inert gas to keep the oxygen level below 8%, preventing a flammable atmosphere.
What action is required if a worker's chemical-resistant gloves are found to have a small pinhole during a PPE inspection?
Answer: Discard the gloves and replace with a new pair before work
Damaged chemical protective gloves must be replaced immediately because even small defects allow toxic cargo contact.
What ventilation rate is the standard minimum to declare a cargo tank sufficiently ventilated for cold work entry?
Answer: Ventilation rate is irrelevant—only gas testing determines safety
Ventilation assists in gas freeing, but the final determination of safe entry is always based on measured gas concentrations, not ventilation rate alone.
Under OSHA 29 CFR 1910.146, what is a 'non-permit required confined space' on a tanker?
Answer: A confined space with no serious hazards that does not require a written permit for entry
A non-permit required confined space has no actual or potential atmospheric, engulfment, or other serious hazards and does not legally require a written entry permit.