When under maneouvring conditions with the machinery being manually operated the control unit or console should be （）

When under maneuvering conditions with the machinery being manually operated the control unit or console should be

Generally speaking, suction heads require to be （） for high speed or large capacities than for low speed or small capacities.

It should be apparent that little or nothing is gained by opening a drain at the same time as or after admitting steamThe above sentence probably means （）.

（）shall be liable for loss of and damage to the Vessel and／or goods arising or resulting from inaccuracies in stating the description，quantity，weight，measurement or contents.

What should be used to steer an open lifeboat if the rudder becomes lost or damaged?（）

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

（）are liable to be stoten, pilfered or may damaged due to improper handing or stowage.

The nozzle of a gasoline hose or can should be kept（）.