F1 - 1450104 Forecast weather and oceanographic conditions

C-8

The bow in and the stern out

Your vessel is port side to a pier with a spring line led aft from the bow. In calm weather, putting the engines ahead with the rudder hard left should bring _______

Warm front

a cloud sequence of cirrus, cirrostratus, and altostratus clouds followed by rain usually signifies the approach of a(n) _________

Very intense tropical cyclone

Low pressure area with average surface wind above 115 knots

Tropical disturbance

Low pressure area wind speed NOT exceeding 27 knots

Tropical depression

Low pressure area with average surface wind speed from 28 knots to 33 knots.

the ship has no headway at the time

Your are docking a vessel starboard side to with the assistance of two tugs. You are attempting to hold the vessel off by operating both tugs at right angles to the vessel and at full power. What should you ensure?

Slip the towline and allow it to run off the drum

An ocean tow is sinking in deep water. Attempts to sever the towing hawser are unsuccessful. Which action should now be taken?

In advance - usually poor; during the passage - first bad than good, in the rear - usually very good except in showers.

Which of the following outline the correct sequence of visibility associated with weather “cold front”?

the bow in and the stern out

your vessel is port side to a pier with a spring line led aft from the bow. In calm weather, putting the engines ahead with the rudder hard left should bring ____________

The surface indicates a higher wind speed than what really exists

If the current and wind are in opposite directions. what does the sea surface indicate? a false wind speed perception.

080deg

At the approaches to Savannah, GA, with the wind coming out of the west, the wind-drive current will be flowing approximately _______________.

1013.25 millibars

A barometric pressure reading of 29.92 inches of mercury is equivalent to ___________.

A tropical storm

What level of development of a tropical cyclone has a hundred mile radius of circulation, gale force winds, less than 990 millibars of pressure and vertically formed cumulonimbus clouds?

Beaching

The intentional grounding of a vessel as a result of a heavy weather damage, collision or other accidents, where water is being taken in so rapidly that the pumps are unable to cope up with it, is called:

cold front overtaking a warm front

An occluded front is caused by a(n) __________________

gusty winds, thunder, rain or hail, and lightning

Cumulonimbus clouds can produce

immediately put the rudder over hard left

A crew member has just fallen overboard off your port side. Which action should you take?

improving weather conditions

a slow rise in the barometric pressure forecasts ______________.

It will move aft as the ship slows down

Your ship is going full ahead as you start to slow down. Where is the position of the “pivot point” now? No wind, current

cPk

An air mass that has moved down from Canada would most likely have the symbols _________

Place the wind on the starboard bow and hold that course

You have determined that you are in the right semicircle of a tropical cyclone in the Northern Hemisphere. What action should you take to avoid the storm?

The tug should put a stern line up, leading ahead on the ship

You are docking a ship with a single-screw tug assisting on your starboard bow/ How should the tug be tied up if you are anticipating that she will have to hold your bow off while you stem the current?

No special action as tsunamis are inconspicuous in the open ocean

You are steaming in the open ocean of the North Pacific between Aleutian Chain and Hawaii. A warning broadcast indicates that an earthquake has occurred in the Aleutians and has generated a tsunami that is predicted to hit Hawaii. What action is necessary for the ship’s safety?

Signal #4

A storm signal occurring over a place with winds about 185 kph or more

northeast

According to Buys Ballot law, when an observer in the Northern hemisphere experiences a northwest wind, the center of low pressure is located where?

Permanently mounted

an aneroid barometer on a boat should always be ________________

it will move to the astern

How could you determine the location of pivot point, assuming your ship is going full ahead, and started to slow down without wind and current?

Low pressure

What kind of pressure systems travel in Easterly waves?

Turn its stern towards the dock

You are landing a single-screw vessel with a lefthanded propeller starboard side to the dock. As you approach the dock you back you engine with your rudder amidships. What should you expect the vessel?

Semi-diurnal tide

What tide assumed to occur when there are two high waters and two low water occurs during a tidal day?

South to east

If the center of low pressure is due west of you in the Northern hemisphere which wind directions you expect?

Gaskets

During the patching holes in the hull of a vessel, pillows, bedding, and other soft materials can be used as _____________