Tanker Systems and Equipment 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 Systems and Equipment flashcards as text
What is the function of a 'spill valve' (also called overflow valve) in a tanker cargo system?
Answer: To automatically divert overflow back to a slop tank during loading
A spill valve automatically redirects cargo to the slop tank if the receiving tank reaches its maximum level, preventing deck spills.
What is the recommended oxygen content (by volume) inside a cargo tank declared 'inerted'?
Answer: Less than 11%
IMO guidelines require the oxygen content in an inerted tank to be maintained below 8% (with a target of 5% or less for crude oil tankers), but the SOLAS threshold is below 8%.
Which document lists the physical and chemical properties, hazards, and emergency procedures for a specific liquid cargo?
Answer: Safety Data Sheet (SDS / MSDS)
The Safety Data Sheet (SDS, formerly MSDS) provides comprehensive hazard information, safe handling procedures, and emergency response guidance for each cargo.
A tanker crew notices the inert gas blower fan vibrating abnormally. What is the most appropriate immediate action?
Answer: Shut down the blower and investigate before resuming cargo operations
Abnormal vibration indicates a mechanical fault that could lead to blower failure; cargo operations relying on the IGS must stop until the blower is inspected and repaired.
What is the purpose of a 'fixed gas detection system' on a tanker?
Answer: To continuously monitor cargo tank and pump room atmospheres for flammable or toxic gases
Fixed gas detection systems provide continuous automated monitoring and alarming of flammable and toxic gas concentrations throughout critical spaces.
On a chemical tanker, what does 'tank coating compatibility' mean?
Answer: Ensuring the tank lining material is not damaged or contaminated by the specific cargo loaded
Incompatible cargoes can dissolve, strip, or chemically attack tank coatings, contaminating the cargo and leaving tanks unprotected for future use.
Which international code governs the construction and equipment standards for ships carrying liquefied gases in bulk?
Answer: IGC Code
The International Gas Carrier (IGC) Code sets mandatory safety standards for the design, construction, and equipment of ships carrying liquefied gases in bulk.