Pollution Prevention. Test 25 – Online Maritime Tests

MARPOL 73/78 - Annex I. Your vessel sailed from Bahrain heading for Singapore.2 days after departure, you like to empty your machinery space bilges. What will be the correct procedures in this connection?

Call the bridge and request for position and permission to discharge overboard through oilywater separating and filtering equipment.
Discharge overboard through oily-water separating and filtering equipment without calling the bridge.
Wait till after darkness and discharge in most convenient way.
Call the bridge and request for position and permission to discharge directly overboard.

For the calculation of hypothetical oil outflow, credit shall be given to double bottom tanks, full or empty, when cargo is carried in tanks above. Partial double bottoms are credited _____

as 0.3 times the percentage they cover.
as providing sufficient protection for the tanks above.
according to the percentage of the cargo tank they cover.
as non-existent.

One of the following arguments is not valid regarding discharge of oil/oily mix into sea:

Rate of discharge regarding oily water is not to exceed 30 litters/nautical mile?
Tankers are restricted to have a monitor/control system and a slop tank?
The lower speed the higher ratio of oil/oily water can be discharged?
When discharging oil/oily water, the vessel's position must be minimum 50 nm off any shores?

Small oil spills on deck can be kept from going overboard by doing what?

Closing the lids on the vents
Driving wooden plugs into the vents
Plugging the scuppers
Plugging the sounding pipes

The oil record book for cargo/ballast operations on tankers shall be completed, on a tank to tank basis, whenever which of these operations has taken place?

I, II, III, IV, V, VI, VII, VIII, IX, X
I, II, IV, V, VII, VIII, IX, X, XI, XII
I, II, III, V, VI, VII, VIII, IX, X, XI
I, II, III, V, VI, VIII, X, XI, XII, XIII

In some trades cargo hoses are carried onboard. These hoses are normally checked and tested annually. Amongst other testes and checks, a pressure test is done. The latter shall be done up to the working pressure of the hose plus:

100 %
50 %
10 %
25 %

OPA 90 - most important in monitoring the loading of oil or the bunkering rate is _____

that the remote control gauging system is to be observed.
to keep close radio contact with the jetty/barge.
to keep a close eye on the manifold pressure.
that tanks should be sounded very regularly.

OPA 90 - in the event of an oil spill, mooring lines can be used as an interim containment barrier _____

around cargo oil and bunkering manifolds.
to contain small oil spills on the open deck.
to avoid oil spilled on the deck from escaping overboard via the fish plate openings.
to keep an oil slick from escaping downstream.

A new oil tanker of 20,000 tons dwt and above but less than 30,000 tons dwt, NOT fitted with SBT and PL, should be designated as a _____ on the IOPP certificate.

product carrier
petrochemical tanker
crude oil tanker
crude oil / product carrier

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