DWO Emergency Procedures & Safety 2 — Questions and Answers
Question 1: When a vessel sounds one prolonged blast every two minutes, what condition does this signal indicate?
- Vessel aground in fog
- Vessel underway in restricted visibility (Correct answer)
- Vessel at anchor in fog
- Vessel towing in restricted visibility
Correct answer: Vessel underway in restricted visibility
One prolonged blast every two minutes is the fog signal for a power-driven vessel underway and making way in restricted visibility.
Question 2: What is the first action a Deck Watch Officer should take upon discovering a fire on board?
- Sound the fire alarm and notify the Master (Correct answer)
- Attempt to extinguish the fire personally
- Activate the CO2 fixed system immediately
- Muster all crew to lifeboat stations
Correct answer: Sound the fire alarm and notify the Master
The immediate first action is to sound the general alarm and notify the Master before taking any other action.
Question 3: A SART (Search and Rescue Transponder) is activated when it detects which type of signal?
- VHF Channel 16 transmissions
- X-band radar pulses (Correct answer)
- Satellite Doppler signals
- MF/HF distress frequencies
Correct answer: X-band radar pulses
A SART activates when it detects 9 GHz X-band radar pulses from a searching vessel or aircraft, then transmits a series of blips on that radar.
Question 4: Under SOLAS, what is the minimum number of lifeboat drills required per month for the crew?
- One drill every month (Correct answer)
- One drill every two months
- One drill every three months
- Two drills every month
Correct answer: One drill every month
SOLAS requires that each crew member participates in at least one lifeboat drill and one fire drill every month.
Question 5: When using an EPIRB registered in the US, which satellite system primarily processes its distress alert?
- INMARSAT
- COSPAS-SARSAT (Correct answer)
- GPS constellation
- Iridium network
Correct answer: COSPAS-SARSAT
EPIRBs transmit on 406 MHz and are detected and processed by the COSPAS-SARSAT satellite system, which forwards alerts to rescue coordination centers.
Question 6: What does the term 'muster station' refer to in shipboard emergency procedures?
- The location of the fire main control valves
- A designated assembly point where crew report during emergencies (Correct answer)
- The bridge position for the OOW during emergencies
- The compartment housing emergency equipment lockers
Correct answer: A designated assembly point where crew report during emergencies
A muster station is a designated assembly point where crew and passengers gather to be accounted for and receive instructions during an emergency.
Question 7: Which class of fire involves energized electrical equipment?
- Class A
- Class B
- Class C (Correct answer)
- Class D
Correct answer: Class C
Class C fires involve energized electrical equipment, requiring non-conductive extinguishing agents such as CO2 or dry chemical.
DWO Emergency Procedures & Safety 2
When a vessel sounds one prolonged blast every two minutes, what condition does this signal indicate?