You are steaming in a westerly direction along the Gulf Coast．You see ahead of you a light

A.The freezing of raindrops on contact with the vessel's structure

B.Drastic fall in ambient temperature

C.The deposit of water droplets on the vessel's structure

D.Snowfall

A.in many places a counter current flows in opposition to the main current close to the bank

B.current can vary with depth of water and large deep draught ships can experience different current effects at differing parts of the hull tend to turn to the wind

C.as speed is reduced，the increased proportion of the ship's vector which is attributable to current will set the ship close to obstructions

D.when close to the berth in a head current，there is a danger that flow inshore of the ship becomes restricted and the ship is subject to interactive forces

A.Checking the loading sheet

B.Loading to within 1 percent of outage

C.Loading to within 10 percent of the safety relief valve setting

D.Filling to the maximum level indicated on the liquid level gaging device

A.vessels without mechanical motive power

B.vessels with disabled machinery or bad steering

C.vessels with dangerous cargoes on board

D.vessels liable to become unmanageable for any other reason