14 Questions
Describe the method of testing a bilge high level alarm switch.
Testing the bilge high level alarm switch involves manually lifting the float switch to simulate high water levels and checking if the alarm activates.
List FIVE checks that would be made before taking over a main and auxiliary machinery space watch.
- Check for any ongoing maintenance work. 2. Verify proper operation of emergency stop systems. 3. Ensure all machinery parameters are within normal range. 4. Check for any leaks or unusual noises. 5. Confirm proper lighting and ventilation.
State the purpose of scheduled maintenance in the context of maritime engineering.
Scheduled maintenance aims to prevent breakdowns, ensure equipment reliability, and prolong the lifespan of machinery.
Explain why unscheduled maintenance may be required despite having a scheduled maintenance system in operation.
Unscheduled maintenance may be necessary due to unforeseen failures, emergencies, or sudden malfunctions that cannot wait for the next scheduled maintenance interval.
State why it is important to keep breakdowns to a minimum in a maritime setting.
Minimizing breakdowns is crucial to ensure the safety of the vessel, prevent disruptions in operations, and avoid costly repairs or delays.
State the SIX MARPOL annexes that are currently in force.
- Annex I - Oil Pollution. 2. Annex II - Noxious Liquid Substances. 3. Annex III - Harmful Substances in Packaged Form. 4. Annex IV - Sewage. 5. Annex V - Garbage. 6. Annex VI - Air Pollution.
Define relative humidity in the context of air conditioning systems.
Relative humidity is the ratio of the amount of water vapor present in the air at a specific temperature to the maximum amount that the air could hold at that temperature.
Explain the difference between a dry bulb and wet bulb thermometer reading and describe how these readings are used with a psychrometric chart.
The dry bulb temperature measures the actual air temperature, while the wet bulb temperature measures the temperature when evaporation is allowed. These readings are used to find properties of air on a psychrometric chart.
What is meant by the term comfort zone in the context of air conditioning systems, and what are typical figures associated with it?
The comfort zone refers to the range of temperature and relative humidity where most people feel comfortable. Typical figures are around 20-25 degrees Celsius for temperature and 40-60% for relative humidity.
State the regulation regarding the rate of flooding with respect to time in a machinery space carbon dioxide smothering system.
The regulation typically requires the carbon dioxide flooding to reach 95% of the protected volume within 2 minutes.
What precautions should be taken before activating a machinery space carbon dioxide smothering system?
Before activation, personnel should ensure that the space is evacuated, all personnel are accounted for, and that ventilation systems are shut down to prevent CO2 leakage.
State the three main stages of a Biological Sewage Treatment Plant.
Screening, Primary Treatment, Secondary Treatment
Describe the operation of a Biological Sewage Treatment Plant, explaining the process carried out in each of the stages mentioned.
Screening involves removing large solids, Primary Treatment separates sludge, and Secondary Treatment uses microbes to break down organic matter.
State two other pollutants that MARPOL Annex VI is designed to limit.
Sulfur Oxides (SOx) and Particulate Matter (PM)
Prepare for the Small Vessel Second Engineer exam covering operational procedures, basic hotel services, and ship construction administered by the Scottish Qualifications Authority on behalf of Maritime and Coastguard Agency. This quiz focuses on key topics to help candidates succeed in the examination.
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