AB Firefighting and Emergency Procedures Questions and Answers

Question 1

You are part of an initial response team for a fire in the engine room. Which of the following actions should be prioritized to prevent the fire from spreading?

Accepted Answer

Shutting down fuel lines, stopping ventilation, and securing fire dampers.

Answer

The immediate priority in containing an engine room fire is to remove the elements of the fire triangle: fuel and oxygen. Shutting down fuel lines removes the fuel source, while stopping ventilation fans and securing fire dampers cuts off the oxygen supply and helps to contain the fire within the space. Discharging the fixed CO2 system is a last resort and requires all personnel to be evacuated first. Cooling boundaries is important but comes after securing the space.

Question 2

A fire has broken out involving pooled diesel fuel on the deck. Which class of fire is this, and what is the MOST appropriate portable extinguishing agent to use?

Accepted Answer

Class B; Foam or Dry Chemical

Answer

Fires involving flammable liquids like diesel fuel are classified as Class B fires. The most appropriate extinguishing agents are foam, which smothers the fire by cutting off oxygen, or dry chemical powder, which interrupts the chemical reaction. Water should not be used as it can spread the burning fuel. CO2 is less effective in open areas, and Wet Chemical is for cooking oils (Class K).

Question 3

What is the general emergency alarm signal that calls all crew to their muster stations?

Accepted Answer

Seven or more short blasts followed by one long blast.

Answer

According to SOLAS regulations, the general emergency alarm signal consists of seven or more short blasts followed by one long blast on the ship's whistle or siren, supplemented by the ship's internal alarm bells. This signal alerts all personnel to proceed to their designated muster stations as outlined in the muster list.

Question 4

Which of the following items is a required component of a SOLAS-compliant Fireman's Outfit?

Accepted Answer

An intrinsically safe (explosion-proof) safety lamp.

Answer

A SOLAS-compliant Fireman's Outfit must include specific personal equipment. Among the required items are an electric safety lamp (hand lantern) of an approved, intrinsically safe or explosion-proof type, with a minimum burning period of three hours. While other listed items are useful, they are not part of the minimum required equipment for the outfit itself under SOLAS.

Question 5

Before releasing a fixed CO2 fire-extinguishing system into a machinery space, what is the most critical final step?

Accepted Answer

Confirming that all personnel have been evacuated and accounted for.

Answer

Carbon Dioxide (CO2) extinguishes a fire by displacing oxygen, which also makes the atmosphere in the space lethal to human life. Therefore, the most critical final step before releasing the system is to conduct a headcount and ensure that every single person has safely evacuated the space to be flooded. Failing to do so would result in certain fatality for anyone left behind.

(AB) Able Seaman Exam Practice Test

(AB) Able Seaman Exam Practice Test

AB Firefighting and Emergency Procedures Questions and Answers