When a 40 knot wind is blowing off the pier where we are tie up, it is necessary to:

It is the process of determining a ship approximate position geometrically by applying to her last established charted position a vector or a series of vectors representing all true courses and speeds subsequently ordered.

It is the angle between the magnetic meridian and the north axis of the magnetic compass card.

Distance is primary factor in ship handling, and it is certainly the most difficult factor to estimate. The device that is most useful in measuring such distances as close shiphandling is called:

The premise that tells us that “at any given depth in an open body of water like the sea, the sum of the static pressure and the dynamic pressure is always constant” is known as:

The three-Minute Rule states, “The distance in hundreds of ________ traveled in three minutes equals the speed in knots.”

When side force is applied by the rudders and the screws, with the ship dead in the water, the ship pivots about a point about____ of the distance from the bow to the stern.

As the ship increases speed she sinks bodily in the water, and then, at the critical speed she squats. During the phenomenon:

If we turn the ship so that a larger cross-section is presented normal to the wind, the resultant force is:

One knot is equal to:

If a short approach to anchorage is necessary:

The exactness of station-keeping is a good measure of the smartness of a ship. It is a good rule to define “on station” as being _____ yards of the assigned station.

In a twin-screw ship, the general procedure in getting clear from alongside is to:

In heavy seas, the ship always seeks the:

Before any officer cons a ship in restricted water, he/.she should carefully study the chart by:

This type of chart projection is mainly used to plot the optimum great circle route as a straight line from one place to another.

The basic principle of this equipment if the determination of range of an object or “target” by the measurement of time required for an extremely short burst or “pulse” of radio-frequency (RF) energy, transmitted in the form of a wave, to travel from a source to a target and return as reflected echo.

This is a circle centered at a point of the anchor with a radius equal to the sum of the ship’s length plus the length of the chain paid out:

When a Navy ship is to enter piloting waters, it is best to conduct a navigation brief of the bridge navigation and CIC piloting teams and all other affected crewmembers beforehand at within 24 hours of the time at which the ship expects to station the Special Sea and Anchor Detail. This brief covers such things as expected weather, tides and currents, the planned track, tugs and pilots, and any other anticipated events or conditions of navigational significance. It is chaired by the:

The marine band radio being used for harbor communication operate at the VHF band which includes frequencies from:

Position determination using the GPS system is based on the ability of the user’s receiver to accurately determine the distance to at least______ of the GPS satellites that can be found above the user’s horizon at the time of the fix.

Suppose your ship is making 20 knots and is coming up from behind to join a column which is proceeding at only 10 knots. In slowing from 20 knots to 10 knots we have perhaps closed by 350 yards, or 35 yard per knot of speed change. We call this ratio:

A propeller is designed to produce the maximum________along the line of the shaft from a given rotational force or torque applied to the shaft itself.

When converting from compass to true, always:

In the normal twin-screw installation, the propellers turn in what direction when driving ahead

Reinforcements and severe squatting occur at lower speeds in shallow water than in deep water. This called shallow water effect. Thus in shallow water,

The resistance of the underwater hull to the flow of current is __________ to the square of the velocity of the current and the cross-sectional area presented to the flow, and is inversely dependent upon the streamlining of the hull with respect to the direction to flow.

If the wind blowing hard onto the pier where we are to tie up, even though we keep the ship parallel as we move in, the speed broadsides may be too great for safety. In this case, we should:

One of the following conditions is not applicable in the selection of an anchorage:

The key to successful voyage planning of either a single voyage or an extended deployment is:

In formation, a very useful rule for safe maneuvering when close to another vessel and heading towards her is to:

If the formation speed is 18 knots, a 5 degree course change will give a 50 yard per minute athwartship component of motion, whereas it will take a 15 rpm change in the speed to produce the equivalent force-and-aft component. Thus, if our station is 45 degrees on the bow of the guide and we wish to decrease the range while keeping the bearing constant, we can accomplish this by dropping our speed 15 turns and changing the course _____ degrees toward the guide.

The Six-Minute Rule states, “The distance in _______ traveled in six minutes equals the speed in knots.”

During the approach maneuver for underway replenishment, we commence using the Radian Rule. At 600 yards astern, the supply ship’s side should bear 3 degrees from the course, if we are approaching correctly. At 300 yards, her side should bear ____ degrees from the course.

When swinging to a new course, bring the rudder amidship a number of degrees before reaching the new course ________ the rudder angle being used.

When piloting at low visibility, the navigator can obtain a line of position (LOP) from only one object as the vessel proceeds by advancing an LOP obtained earlier to the time at which a later LOP was obtained. The position thus produced is termed:

It is tidal pattern in which only a single high and single low tide occur on each tidal day of 24 hours and 50 minutes.

It is the period extending from sunrise or sunset at the lighter limit to the time at which the center of the sun is 6 degrees below the celestial horizon at the darker limit. It is characterized by a fairly sharp horizon and a light sky wherein the brighter first-and second magnitude stars and navigational planets are visible.

Currently, the Philippines uses a system of buoyage called:

Most marine navigation radars operate in the X-band which includes frequencies from:

When maneuvering for the man overboard, if the man is not in sight, or if conditions are such that it would be difficult to find him should we lose contact, a “Williamson turn” may be a better approach. This calls for continuing the initial full rudder turn until ____ degrees from the initial heading, and then ordering the helm shifted and reversing direction of the turn.

It is the art of establishing a geographic position on the open sea by use of geological features of the ocean floor.

When making preparation for towing operations, we should make the approach nearly as parallel to the ship to be towed, so as to pass about 100 feet to ____ of her forecastle; next, send over the messenger line and then bring the ship to a position where the stern will be about 100 yards ahead and 100 feet abeam of the other ship’s stern.

Aside from the wind and the current, the general sources of force which can be brought to bear on your ship independent or any other vessel do not include:

It is customary for the commanding officer to set down in writing each night the ship is underway a complete set of instruction concerning the activities to be carried out by the watch during the night. In the Navy, these are called:

The blade tips of the propeller in a twin-screw ship, as they pass closest to the hull are working in a following wake of only ______ percent of the ship’s speed, and throughout the majority of the propeller disc there is no appreciable following wake.

When going alongside a pier, we normally approach on a converging course about _____ degrees from the heading of our berth.

It is a naval expression of a shiphandler’s competence at sea. The captain who has a reputation for such is one who can marshal all the information on the situation available to him, combine it with his intimate knowledge of his ship and her characteristics, and take his course of action with the judgment of the master mariner. This judgment is made up of intelligence, knowledge of ships and the sea, and an understanding of the physics of shiphandling.

When coming alongside a ship at anchor or at a buoy, with the wind blowing, approach to a point abreast the ship but beyond her swing, and then “sail” broadside by inclining our ship about ____ degrees to the wind and keeping her at this angle with the engines.

When approaching an anchorage, it is very convenient for the conning officer to make a straight run for the last ___ yards directly towards a known landmark.

Another crucial rule for safe maneuvering in close formation is, “Always turn away.” This rule means to:

It often happens that passage through restricted waters or docking maneuver is greatly facilitated when the current is:

During helicopter operations, the problem for the shiphandler is to provide a ______ over the ship’s flight deck which permits the pilot to make an approach into the wind with the least possible turbulence, but at the same time from such a direction that he can see a major portion of the ship’s superstructure in his forward hemisphere of vision.

The function of this group is to maintain an accurate and timely plot of the ship’s position by all available means, including both visual and electronic information.

The horizontal direction of one terrestrial point from another, expressed as an angle from 000 degrees clockwise to 360 degrees, is termed a:

The wind normally acts to force the ship bodily:

If the gyro repeater bearing is higher than the actual true bearing of the visual range or two charted objects, the gyro error is:

In handling the ship in rough seas, the best way to minimize the roll is to:

As a propeller rotates to drive a ship through the water, in addition to producing thrust along the axis of the propeller shaft, the force that it produces at the stern of the ship that causes the stern to move to the direction of the rotation is called: