（）by an ice-breaker, it is important to maintain a continuous listening watch on the appropriate VHF channel and to maintain a proper look-out for sound and visual signals.

Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）

The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.

If the beacon is mounted at a wrong place, it may（）by sea water, chemicals, exhaust and vibrations.

Stations in the United States of America are grouped by states arranged in the alphabetical order of their（）.

The advantage of geostationary satellites is（）.

The rescue coordination center may（）on stations which interfere with traffic.

Radiotelephony communication or radio telex communication or both will be carried out by terrestrial or satellite means,（）the equipment fitted on ship and the area in which the incident occurs.

What following is not among the function of SOLAS ships?（）

Particular care should be（）in selecting CESs in areas where Ocean Regions overlap.