Yacht Second Engineer Exam: Operational Procedures and Ship Construction
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Questions and Answers

What does MARPOL Annex VI regulate with regard to Oxides of Nitrogen (NOx)?

  • Engines used in fishing vessels
  • Engines with a power output of more than 130 kW (correct)
  • Engines with a power output of less than 130 kW
  • Engines used in recreational boats

Apart from NOx, which TWO other pollutants is MARPOL Annex VI designed to limit?

  • Carbon monoxide and Sulfur oxides
  • Volatile Organic Compounds and Lead
  • Mercury and Ozone
  • Hydrocarbons and Particulate matter (correct)

What are the THREE main stages of a Biological Sewage Treatment Plant?

  • Screening, Aeration, Sludge Digestion (correct)
  • Primary, Secondary, Tertiary
  • Inlet, Sedimentation, Discharge
  • Mixing, Clarification, Filtration

How is relative humidity defined in the monitoring of air conditioning systems?

<p>The ratio of water vapor present in the air to the maximum possible at the same temperature (C)</p> Signup and view all the answers

What is the difference between a dry bulb and wet bulb thermometer reading in air conditioning systems?

<p>Dry bulb measures temperature, wet bulb measures humidity (A)</p> Signup and view all the answers

What is meant by the term comfort zone in the context of air conditioning systems?

<p>The temperature range where most people feel comfortable (D)</p> Signup and view all the answers

Describe the operation of a Silver-Ion method of sterilization used in a vessel's domestic drinking water system.

<p>Chemical process involving heavy metals (C)</p> Signup and view all the answers

What regulation regarding the rate of flooding with respect to time applies to machinery space carbon dioxide smothering systems?

<p>$1.5 kg/m^3$ per minute for at least 10 minutes (A)</p> Signup and view all the answers

What is the purpose of scheduled maintenance?

<p>To reduce the need for unscheduled maintenance (A)</p> Signup and view all the answers

Why might unscheduled maintenance be required even if a scheduled maintenance system is in operation?

<p>Because scheduled maintenance cannot prevent all failures (C)</p> Signup and view all the answers

Why should breakdowns be kept to a minimum?

<p>To minimize downtime and loss of revenue (A)</p> Signup and view all the answers

Which of the following is NOT a valid reason for breakdowns to be kept to a minimum?

<p>To increase the number of scheduled maintenance tasks (D)</p> Signup and view all the answers

Name the SIX MARPOL annexes currently in force.

<p>Annex I - IV, VI, and VII (D)</p> Signup and view all the answers

Which of the following is NOT one of the MARPOL annexes currently in force?

<p>Annex IX (C)</p> Signup and view all the answers

What should be the focus of a main and auxiliary machinery space watch before taking over?

<p>Ensuring proper safety checks and procedures (D)</p> Signup and view all the answers

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