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AIGF exit exam questions and answers — Set 12

Set 12 of the Advanced Training for Ships subject to the IGF Code (AIGF) exit exam bank — 12 of 342 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 12 — 12 AIGF exit exam questions with answers

1. Fuel lines outside the machinery spaces shall be installed and protected so as to minimize

  • A. The risk of injury to personnel
  • B. Damage to the ship in case of leakage
  • C. Risk of pollution
  • D. All of above
Answer: D — All of above
Fuel lines outside machinery spaces must be installed and protected to minimize the risk of mechanical damage, collision impact, and excessive thermal stress.

2. In the type of Fuel tank liquid level gauges, What is indirect devices?

  • A. which do not determine the amount of fuel by weighing ur in line flow metering
  • B. which determine the amount of fuel by weighing or out-line fow metering
  • C. which determine the amount of fuel by weighing or in-line fiove metering
  • D. which do not determine the amount of fuel by weighing or out-lite flove tretering
Answer: B — which determine the amount of fuel by weighing or out-line fow metering
Indirect level gauging devices determine the mass of fuel in tanks using external mass flow meters, weighing systems, or acoustic transducers.

3. Fire Blankets are used for

  • A. Smothering of tire
  • B. Ccoling of fire (
  • C. Inhicition of fire
  • D. Starvation uf fire
Answer: A — Smothering of tire
Fire blankets are utilized for rapid smothering of small localized fires by depriving the flames of oxygen.

4. Piping systems, containment and over-pressure relief arrangements are

  • A. Such that there is no fuel gases enter non hazardous area
  • B. Of suitable design, construction and installation for their intended application shali be provided.
  • C. Such that in case of any leakage gases are led to atmosphere
  • D. Arranged in such a way that chances of fire and explosions are reduced
Answer: A — Such that there is no fuel gases enter non hazardous area
Piping systems, containment barriers, and overpressure relief systems are engineered to prevent any fuel gas from entering non-hazardous spaces.

5. Self Contained Breathing Apparatus used for

  • A. fire fighting
  • B. rescue operations
  • C. both (a) and (b)
  • D. none of the above
Answer: C — both (a) and (b)
Self-Contained Breathing Apparatus (SCBA) is mandatory for emergency entry, firefighting, and rescue operations in toxic or oxygen-deficient atmospheres.

6. A zone where ship traffic and other activities should be monitored during bunkering is known as:

  • A. Hazardous Zone
  • B. Safety Zone
  • C. Security Zone
  • D. None of the above
Answer: B — Safety Zone
The bunkering safety zone is a designated perimeter where access, hot work, and non-certified electrical equipment are strictly controlled during bunkering.

7. Following any reasonably foreseeable failure during risk assessment consideration shall be given to the

  • A. Hazards associated with physical layout, operation and maintenance
  • B. Condition of ships machineries
  • C. Condition of cargo holds
  • D. Condition of the ships structure and hull
Answer: A — Hazards associated with physical layout, operation and maintenance
Risk assessments under the IGF Code evaluate potential failure modes related to physical layout, hazardous zone boundaries, and maintenance access.

8. Each liquefied gas fuel tank shall have an overflow control and be fitted with

  • A. High liquid leveglarm operating independently of other liquid level indicators and giving an audible and visual warning when activated.
  • B. An additional sensor operating independently of the high liquid level alarm shall automatically actuate a shutoff valve
  • C. The position of the sensors in the liquefied gas fuel tank shall be capable of being verified before commissioning.
  • D. All of above 132 k.
Answer: C — The position of the sensors in the liquefied gas fuel tank shall be capable of being verified before commissioning.
Overflow control systems on fuel tanks feature high-high level sensors whose calibration and position must be verified prior to commissioning.

9. Measure of the resistance of natural gas to detonation when it is burned as a fuel in an engine is:

  • A. fuel in an engine is: Q al Calonfic value
  • B. Wobbe Number
  • C. The Methane Number (MN)
  • D. none of the above
Answer: C — The Methane Number (MN)
The Methane Number (MN) measures the knock resistance of a fuel gas in internal combustion engines, analogous to the Octane Number for gasoline.

10. The drip tray shall be thermally insulated from the ship's structure

  • A. To prevent any cracks in hull in case of leakage
  • B. So that the surrounding deck structures are not exposed to unacceptable cooling, in case of leakage of liquid fuel.
  • C. To prevent immdiate evaporation of liquid fuel due to high ambient temerature
  • D. To ensure that the liquid fuel remains liquid till is drained to appropriate tank
Answer: B — So that the surrounding deck structures are not exposed to unacceptable cooling, in case of leakage of liquid fuel.
Drip trays beneath bunkering manifolds must be thermally insulated from the deck structure to prevent cryogenic cooling and brittle fracture of the hull.

11. What does hazardous area zone O includes?

  • A. any pipework for density-relief
  • B. any pipework for quantity-relief
  • C. any pipework for pressure-relief
  • D. any pipework for volume-relief
Answer: B — any pipework for quantity-relief
Hazardous Area Zone 0 includes the interior of fuel tanks, relief valve vent lines, and pipes containing fuel gas under normal conditions.

12. The hood or casing shall be equipped with _____ _

  • A. wind driven ventilation
  • B. natural ventilation
  • C. stack ventilation
  • D. mechanical exhaust ventilation
Answer: D — mechanical exhaust ventilation
Exhaust hoods over gas fuel machinery must be equipped with continuous mechanical extraction ventilation providing negative pressure.

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