FREE Tanker Familiarization Pollution Prevention and MARPOL Questions and Answers

Question 1

An oil tanker is underway, more than 50 nautical miles from the nearest land and outside a MARPOL Special Area. Under which condition is the discharge of oily mixtures from cargo spaces permitted?

Accepted Answer

The instantaneous rate of discharge of oil content does not exceed 30 litres per nautical mile.

Answer

The oil content of the effluent is less than 100 parts per million (ppm).

Answer

The vessel is not required to have an Oil Discharge Monitoring and Control System (ODMCS) in operation.

Answer

The total quantity of oil discharged can be up to 1/10,000 of the total cargo.

Question 2

What is the primary purpose of a Shipboard Oil Pollution Emergency Plan (SOPEP) as required by MARPOL Annex I?

Accepted Answer

To provide guidance to the Master and officers on actions to take in the event of an oil spill.

Answer

To document the daily consumption of fuel and lubricating oils.

Answer

To provide detailed instructions for bunkering procedures.

Answer

To serve as a training manual for routine cargo operations.

Question 3

Which of the following documents is used to record all cargo and ballast operations on an oil tanker, including loading, discharging, and crude oil washing, as mandated by MARPOL?

Accepted Answer

The Oil Record Book Part II (Cargo/Ballast Operations)

Answer

The Ship's Official Logbook

Answer

The Oil Record Book Part I (Machinery Space Operations)

Answer

The Declaration of Inspection (DOI)

Question 4

A tanker is navigating through a designated MARPOL Annex I 'Special Area' such as the Mediterranean Sea. What is the general rule regarding the discharge of any oil or oily mixtures from the cargo tanks?

Accepted Answer

Any discharge of oil or oily mixtures is prohibited.

Answer

Discharge is permitted if the oil content is below 50 ppm.

Answer

Discharge is allowed only at night.

Answer

Discharge is permitted if the ship is moving faster than 12 knots.

Question 5

According to MARPOL Annex V, which of the following is a mandatory requirement for every ship of 100 gross tonnage and above?

Accepted Answer

A Garbage Management Plan.

Answer

An onboard incinerator for all types of garbage.

Answer

A certified sewage treatment plant.

Answer

Segregated ballast tanks.

Question 6

A tanker has an approved sewage treatment plant onboard. According to MARPOL Annex IV, under what conditions can the treated effluent be discharged into the sea?

Accepted Answer

The effluent must not produce visible floating solids or cause discoloration of the surrounding water.

Answer

Only when more than 12 nautical miles from the nearest land.

Answer

Only when the ship is stopped and anchored.

Answer

The discharge must be comminuted and disinfected again at the point of discharge.