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BIGF exit exam questions and answers — Set 5

Set 5 of the Basic Training for Ships subject to the IGF Code (BIGF) exit exam bank — 30 of 181 questions, with the correct option marked and a one-line explanation for every one. Read it end to end, jump to a single set, or search it — then sit the same bank as a timed paper. The real DG Shipping exit exam is 30 marks with 15 to pass.

These are the bank's original groupings. Practising deals the whole bank out again every time you reshuffle, so a practice “Set 3” is a different 30 questions each time — the set numbers below are the source file's, and are only used here so the key stays navigable. Options are listed in their original order with fixed letters; when you practise, those move too.

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Set 5 — 30 BIGF exit exam questions with answers

1. In the event of an emergency involving environmental protection and MARPOL standards during Basic IGF Code tasks, what immediate action is required?

  • A. Attempt to resolve the incident silently without raising the alarm
  • B. Evacuate the vessel immediately without informing the bridge
  • C. Raise the alarm, notify the Officer of the Watch, and execute assigned muster list duties
  • D. Wait until the end of the watch to log the issue
Answer: C — Raise the alarm, notify the Officer of the Watch, and execute assigned muster list duties
Prompt alarm activation ensures emergency response teams can mobilize immediately.

2. How frequently must operational drills and practical checks for environmental protection and MARPOL standards be conducted for Basic IGF Code?

  • A. Only when requested by port State control inspectors
  • B. At least monthly or as mandated by SOLAS and shipboard safety management system (SMS)
  • C. Annually prior to vessel drydocking
  • D. Once every 5 years during special survey
Answer: B — At least monthly or as mandated by SOLAS and shipboard safety management system (SMS)
Regular drills maintain crew emergency readiness and satisfy SOLAS requirements.

3. What documented record must be maintained on board following completion of tasks related to environmental protection and MARPOL standards in Basic IGF Code?

  • A. Unsigned note on the shipboard notice board
  • B. Verbal update to port agent without logging
  • C. Entry in the official Deck or Engine Logbook recording date, time, and operational parameters
  • D. No written record is required
Answer: C — Entry in the official Deck or Engine Logbook recording date, time, and operational parameters
Official logbook entries provide mandatory legal documentation of shipboard safety tasks.

4. What type of personal protective equipment (PPE) is essential when handling environmental protection and MARPOL standards under Basic IGF Code guidelines?

  • A. Certified task-specific PPE meeting SOLAS/IMO performance standards
  • B. High-visibility vest only
  • C. Standard street clothing with rubber gloves
  • D. Basic cotton coveralls without eye or foot protection
Answer: A — Certified task-specific PPE meeting SOLAS/IMO performance standards
Approved PPE protects personnel against specific physical and chemical hazards.

5. What parameter must be verified prior to authorizing enclosed space entry for environmental protection and MARPOL standards related to Basic IGF Code?

  • A. Temperature check only
  • B. Oxygen level at 15% with ventilation turned off
  • C. Visual inspection through access hatch without gas testing
  • D. Atmospheric oxygen level at 20.9% and zero toxic/flammable gas concentration
Answer: D — Atmospheric oxygen level at 20.9% and zero toxic/flammable gas concentration
Enclosed space safety requires verified atmospheric gas testing prior to entry.

6. What key responsibility belongs to seafarers performing watchkeeping duties for environmental protection and MARPOL standards under Basic IGF Code?

  • A. Continuous monitoring of operational parameters and immediate reporting of anomalies
  • B. Bypassing safety trips during routine operations
  • C. Operating equipment beyond design pressure limits
  • D. Leaving watchkeeping station unattended
Answer: A — Continuous monitoring of operational parameters and immediate reporting of anomalies
Continuous vigilance and prompt communication are core watchkeeping duties under STCW.

7. Which document contains detailed hazard data and emergency handling instructions for substances involved in environmental protection and MARPOL standards during Basic IGF Code?

  • A. Bill of Lading description
  • B. Crew List document
  • C. Ship's Cargo Manifest summary page
  • D. Safety Data Sheet (SDS) / Material Safety Data Sheet (MSDS)
Answer: D — Safety Data Sheet (SDS) / Material Safety Data Sheet (MSDS)
Safety Data Sheets provide critical hazard identification, PPE requirements, and first aid response steps.

8. What are the arrangements complyied with the following requirements?

  • A. Failure developments that can be reliably detected before reaching a critical state
  • B. Failure developments that cannot be safely detected before reaching a critical state
  • C. both (a) and (b)
  • D. none of the above
Answer: C — both (a) and (b)
Bunkering and fuel supply arrangements must comply with statutory requirements for hazardous area separation, containment integrity, and rapid emergency isolation.

9. To ensure no release occurs during the hook-up or disconnect of any components during the bunkering process

  • A. draining of the bunker piping systems prior to connect or disconnect s necessary
  • B. gassing up of the bunker piping systems with LNG prior to connect or disconnect 5 necessary
  • C. purging of the bunker piping systems with inert gas prior to connect or disconne s recei
  • D. none of the above
Answer: B — gassing up of the bunker piping systems with LNG prior to connect or disconnect 5 necessary
To prevent accidental atmospheric releases during bunkering connection or disconnection, bunker manifolds must be inerted and verified gas-free before breaking flanges.

10. What is provided in bilge well in each tank connection space of an independent iqueted yes surge and

  • A. a level indicator
  • B. a temperature sensor
  • C. unsafety systems
  • D. both (a) and (b)
Answer: C — unsafety systems
Bilge wells in tank connection spaces of independent gas tanks are equipped with level sensors, temperature probes, and drainage arrangements to safely detect and evacuate any condensate or leakage.

11. Substance of cargo vapour in air which is not flammable

  • A. Ammonia
  • B. Methane
  • C. Chlonine
  • D. Propane
Answer: B — Methane
When fuel gas vapor is diluted with inert nitrogen such that the oxygen content is below the Limiting Oxygen Concentration (LOC), the mixture cannot ignite.

12. For engines fitted with ignition systems, when would the, correct operaton of the goon system on each unit shal be verified?

  • A. prior to admission of gas fuel
  • B. after admission of gas fuel
  • C. every three months
  • D. as time permits
Answer: A — prior to admission of gas fuel
On dual-fuel engines with pilot ignition, the correct operation and timing of the pilot fuel ignition system must be automatically verified on each cylinder prior to admitting gas fuel.

13. Stop valves shall be fitted in the water spray application main supply line:

  • A. At intervals not exceeding 35 metres, for the purpose of isolating damaged sections
  • B. At intervals not exceeding 45 metres, for the purpose of isolating damaged sections
  • C. At intervals not exceeding 50 metres, for the purpose of isolating damaged sections
  • D. At intervals not exceeding 40 metres, for the purpose of isolating damaged sections
Answer: D — At intervals not exceeding 40 metres, for the purpose of isolating damaged sections
Stop valves must be installed in the water spray main supply line at intervals not exceeding 40 meters to enable isolation of damaged pipe sections during a fire.

14. You should always check closed doors for before opening them

  • A. heat from fire.
  • B. paint
  • C. cleanliness
  • D. None of the above
Answer: A — heat from fire.
Before opening closed doors during a fire emergency, always check the door and handle for heat with the back of a gloved hand to avoid sudden backdrafts or exposing yourself to intense flames.

15. How is the gas detection required?

  • A. non-continuous with delay
  • B. continuous without delay
  • C. continuous with delay
  • D. non-continuoss without delay
Answer: A — non-continuous with delay
Gas detection systems in hazardous spaces, ducting, and engine rooms must provide continuous monitoring with rapid response times and immediate automated alarms.

16. Air locks provides __ _

  • A. free and easy passage
  • B. a deck area not less than 15 m2
  • C. both (a) and (b)
  • D. none of the above
Answer: C — both (a) and (b)
Air locks maintain an overpressure differential and provide a two-door interlocked vestibule that prevents flammable gas ingress from hazardous open decks into gas-safe spaces.

17. Ventilation systems is required to avoid __ _

  • A. gas accumulation
  • B. gas seperation
  • C. gas maintenance
  • D. none of the above
Answer: A — gas accumulation
Mechanical ventilation systems in gas fuel machinery spaces and double-wall piping are designed to run continuously to prevent any accumulation of flammable gas pockets.

18. What is the ventilation capacity of fuel preparaton rooms, pump and compressor rooms?

  • A. 30 air changes per hour
  • B. 30 air changes per sec
  • C. 30 air changes per min
  • D. 30 air changes per milli sec
Answer: A — 30 air changes per hour
The IGF Code mandates that fuel preparation rooms, compressor rooms, and pump rooms must be equipped with an independent mechanical extraction ventilation system providing at least 30 air changes per hour.

19. Fuel containment system and machinery spaces containing source that might release gas into the space shall be arranged and located such that

  • A. In case of fuel gas leakage it will not affect personnel
  • B. A fire or explosion in either will not lead to an unacceptable loss of power
  • C. Leakage will not affect accomodation area
  • D. There is no complete blackout
Answer: A — In case of fuel gas leakage it will not affect personnel
Under the IGF Code, fuel containment arrangements and machinery spaces containing gas sources must be isolated and protected so that any unintended fuel gas leakage is contained and will not directly endanger onboard personnel or living spaces.

20. Substance of cargo vapour in air which is not toxic

  • A. Propane
  • B. Ethylene
  • C. Methane
  • D. All the above
Answer: C — Methane
Pure methane vapor in air is a simple asphyxiant and is non-toxic, whereas other chemical gases and high concentrations of aromatic hydrocarbons present distinct physiological toxicity.

21. What is the use of tankscope?

  • A. An instrument used for measuring hydrocarbon vapour in inerted atmospheres
  • B. An instrument used for measuring carbon vapour in inerted atmospheres
  • C. An instrument used for measuring oxygen vapour in inerted atmospheres.
  • D. An instrument used for measuring dioxide vapour in inerted atmospheres
Answer: A — An instrument used for measuring hydrocarbon vapour in inerted atmospheres
A Tankscope is a specialized non-catalytic optical/thermal conductivity instrument specifically designed to measure hydrocarbon gas concentrations (0-100% volume) in inert nitrogen or flue-gas atmospheres where catalytic bead explosimeters cannot operate.

22. Risk assesment needs to be carried out and applied for

  • A. Sizing of drip trays
  • B. Design of airlocks
  • C. Liquefied gas containment system;
  • D. All af above
Answer: C — Liquefied gas containment system;
A formal risk assessment must be carried out for the design, material selection, and structural arrangement of the liquefied gas fuel containment system to evaluate all failure modes.

23. 1 sS Exam 25. During bunkering, an area of sufficient size that keeps other vessels, vehicles, equipment, and cargo operations far enough away so that they pose little risk of damaging or interfering with the LNG bunkering system and equipment is called:

  • A. Safety Zone
  • B. Security Zone
  • C. Hazardous Area
  • D. ISPS Border
Answer: A — Safety Zone
The bunkering safety zone is a designated perimeter around the bunkering manifold and fuel storage areas where unauthorized activities, hot work, and non-certified equipment are strictly prohibited.

24. In Overflow control, What will an additional sensor operating independently of the high liquid level alarm do?

  • A. automatically actuate a switchon valve
  • B. automatically actuate a shutoff valve
  • C. manually actuate a shutoff valve
  • D. manually actuate a switchon valve
Answer: B — automatically actuate a shutoff valve
In fuel tank overflow control systems, an independent high-high level sensor (operating independently of the 95% level alarm) automatically actuates the emergency shutoff valve to prevent overfilling.

25. As per the regulation, It shall be possible to empty, purge and vent fuel storage tanks with fuel piping systems. Prior to venting with dry air to avoid an explosion hazardous atmosphere in tanks and fuel pipes what should be performed?

  • A. Inerting shall be performed.
  • B. Gassing up shall be performed.
  • C. Cooling down should be performed.
  • D. none of the above
Answer: A — Inerting shall be performed.
Prior to aerating fuel tanks or fuel piping with dry air, thorough inerting with dry nitrogen must be performed to ensure the hydrocarbon concentration is reduced below the flammable range.

26. Accident Limit States (ALS) relevant design parameters of limit state design of fuel containment systems

  • A. correspond to the maximum load-carrying capacıty
  • B. correspond to degradation due to the effect of cyclic loading
  • C. concern the ability of the structure to resist accident situations
  • D. none of the above
Answer: C — concern the ability of the structure to resist accident situations
Accidental Limit States (ALS) criteria in fuel containment design assess structural resistance against abnormal collision, grounding, fire exposure, or cryogenic blast loading.

27. The bunkering system shall be so arranged that

  • A. No leakage takes place
  • B. No gas is discharged to the atmosphere during filling of storage tanks
  • C. The bunkering system withstands fluctuation in loading pressures
  • D. The bunkering system withstands fluctuation in ambient temperatures
Answer: B — No gas is discharged to the atmosphere during filling of storage tanks
The bunkering system must be designed so that no gas vapor is vented or discharged to the atmosphere during fuel storage tank filling operations, utilizing vapor return lines where necessary.

28. Electric equipment installed in explosion hazardous spaces and areas

  • A. Should have routine maintenance schedule as per PMS
  • B. Must be inspected and surveyed as per requiremnt of Adminstration
  • C. Should have the procedures and information regarding in-service survey, maintenance and resting
  • D. Should be intristically safe
Answer: B — Must be inspected and surveyed as per requiremnt of Adminstration
All electrical equipment installed in explosion-hazardous spaces must be certified safe (Ex-rated), documented in the hazardous area register, and regularly surveyed in accordance with Administration rules.

29. LNG in liquid state is :

  • A. highly flammable and easily ignite
  • B. not flammable and cannot ignite
  • C. not toxic and can ignite
  • D. none of the above
Answer: C — not toxic and can ignite
In its pure liquid state, LNG is non-toxic, clear, and non-corrosive, but it vaporizes rapidly into flammable methane gas that ignites readily when mixed with air within its flammability limits.

30. What will be the Emergency Shutdown protected machinery space fallure?

  • A. the spaces are considered gas safe under all conditions
  • B. a single failure cannot lead to release of fuel gas into the machinery space
  • C. a single failure may result in a gas release into the space
  • D. none of the above
Answer: A — the spaces are considered gas safe under all conditions
In ESD-protected machinery spaces, the space is deemed gas-safe under normal operation, but upon gas detection, electrical disconnection and fuel tripping occur to prevent explosive ignition.

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