An oil tanker，except as provided for otherwise，might discharge certain amount at certain rate of oil or oily mixtures into sea when（）.

An oil tanker operating with dedicated clean ballast tanks shall be equipped with（），approved by the Administration on the basis of specification recommended by the Organization，to enable supervision of the oil content in ballast water being discharged.

A vessel has an amidships superstructure. Which location would be most suitable for on-deck stowage of automobiles?（）.

Generally speaking，the heavier cargo will go into the（），distributing it evenly fore and aft，the lighter cargo will probably be placed in the（）.

To serve as a person in charge of transfer operations on board a self-propelled tanker，an individual must（）.

The（）should ensure that the holds in which chemical packages are stowed are properly supervised during the loading operations and these packages are regularly inspected for leakage or damage on the voyage.

In preparing a cargo space for receipt of a shipment of bagged cargo，which instruction for laying dunnage should be followed? （）

Cargo booms must be weight tested to recertify the Safe Working Load (SWL) every（）.

According to regulations，access to a cargo pumproom in a tanker carrying grades C or D liquid cargo shall be（）.

Sea water temporarily pumped into tanks to simulate the increased vertical loading of environmental forces is termed（）.