Nav 1 Final Review

Can dead man vote at elections?

Compass + Deviation = Magnetic + Variation = True (Add East)

Vector Chart

Computer-generated database of layers

CBDR stands for?

Constant Bearing Decreasing Range

A vessel underway is not one of these three things:

1) Anchored 2) Moored 3) Aground

Determinants of Safe Speed

1) Background lighting 2) Maneuverability 3) Draft 4) Weather and environmental conditions 5) Traffic density 6) Visibility

Types of Navigation:

1) Dead Reckoning 2) Piloting 3) Celestial 4) Radio 5) Satellite

Distress signals:

1) Dye marker 2) Code flag November/ charlie 3) Square flag and ball 4) Wave arms 5) Red Star shells 6) Fog horns continuous sounding 7) Flames on vessel 8) Gun fired at intervals of 1 min 9) Radio/telegraph alarm 10) Radio telephone alarm 11) Position indicating radio beacon 12) Smoke 13) Orange background with black ball and square 14) SOS 15) Mayday by radio 16) Parachute red flare

Ship handling forces (Controllable)

1) Engines/ props 2) Rudder 3) Bow thrusters 4) Tugs 5) Anchors 6) Lines

6 rules of DR

1) Every hour on the hour 2) Every course change 3) Every speed change 4) Every fix or running fix 5) Every single line of position obtained 6) New course line plotted from each fix or running fix as soon as it is plotted on the chart

Ship handling forces (Semi-controllable)

1) Shallow water effects 2) Passing effects

Disadvantages of Radar:

1) Subject to mechanical and electrical failure 2) Both min and max range limitations 3) Interpretation of display is not always easy. 4) Bearing LOP's are inaccurate, therefore, less accurate than visual piloting 5) Small objects may not be detected in high seas. 6) requires transmission from ship, which may not be tactically desirable.

Advantages of Radar:

1) Used in night and during periods of reduced viability 2) Available at greater ranges from land 3) Fixes may be obtained from a single object 4) Fixes obtained quick and accurately 5) Can locate and track shipping and storms

Order of Precedence between vessels: New, Reels, Catch, Fish, So, Purchase, Some, Weekly

1) Vessel Not under command 2) Vessel Restricted in ability to maneuver 3) Vessel Constrained by draft 4) Vessel engaged in Fishing 5) Sailing vessels 6) Power driven vessels 7) Seaplanes 8) Wing in Ground (WIG)

Ship handling forces (Uncontrollable)

1) Wind 2) Current

Shooting Visual LOP

Beam to Bow

Cardinal Buoys

Black over Yellow = North (Two up arrows) Black yellow black = East (One up one down arrow) Yellow black = South (Two down arrows) Yellow black yellow = West (Hour glass)

Shooting Range LOP

Bow to Beam

The _________ coordinate segment is a projection of the terrestrial coordinate system, outward into space

Celestial

If you see a symbol on a chart you don't recognize what should you refer to?

Chart No. 1

This nine volume set is used to supplement nautical charts in U.S. waters

Coast Pilots

Which rules apply to all vessels upon the high seas and in all waters connected therewith navigable by going vessels?

International

Restricted Waters

Less than 2 nm

If you want to find out the characteristics of a light off the eastern coast of Florida, what would you reference?

Light List

Ebb Current

Low tide or low water

The ___________ for GPS satellites is located at Schriever air Force Base

Master control station

Bearing resolution

Minimum difference in bearing between two objects at the same distance

Range resolution

Minimum difference in distance between two objects at the same bearing

Sailing Vessel

Minimum requirements sidelights and sternlight Optional red over green all-round Spot light on sail for those < 7m Optional for machine powered sailing vessels

Who oversees both Bridge and CIC NAV teams and makes reprots directly to the CO concerning matters of navigation?

Navigator

Which measures relative wind? a) Barometer b) Anemometer c) Psychometric d) flux capacitor

b) Anemometer

Which of the following is NOT an approved publication correction system? a) Notice to Mariners b) Lessons learned message c) Local notice to mariners

b) Lessons learned message

Which is not a type of weather front talked about in class? a) Cold b) Mixed c) Occluded d) Warm

b) Mixed

Which is not an advantage of ECDIS-N? a) Real time positioning b) Automated Plotting c) Increased Manning d) Improved safety

c) Increased Manning

Which measures wet and dry bulb temperatures? a) Barometer b) Anemometer c) Psychometric d) flux capacitor

c) Psychometric

In accordance with the NAVDORM, what must be the GPS FOM in open ocean? a) FOM < 2 b) FOM < 4 c) FOM < 6 d) FOM < 7

d) FOM < 7

Which is not a component of Radar? a) Transmitter b) Modulator c) Receiver d) Flux capacitor

d) Flux capacitor

Which is NOT a major segment of GPS a) Space b) Control c) User d) Interface

d) Interface

6 min rule

ships speed kts / 10 = distance traveled (miles)

3 min rule

ships speed kts x 100 = distance traveled (yds)

Dirunal Tides

One high tide and one low tide per day

Open Ocean

Over 30 nm

Towing and Pushing

Towing Astern, less than 200 m Two masthead lights in a vertical line Sidelights Sternlight Towing light in a vertical line above the sternlight Towing Astern, more than 200 m Three masthead lights in a vertical line The rest is the same as above: sidelights, sternlight, towing light in a vertical line above the sternlight Pushing Ahead/Alongside (International) Two masthead lights in a vertical line Sidelights Sternlight Pushing Ahead/Alongside (Inland) Two masthead lights in a vertical line Sidelights Two towing lights in a vertical line Pushing Ahead - Composite Vessel Same as regular power-driven vessel Vessels Being Towed Sidelights Sternlights Diamond Dayshape (if the tow is greater than 200 m)

Tides

Vertical movement of water

The positioning service used by the military (encrypted) is:

PPS

Ever vessel shall at all times proceed at a _____________ to avoid ______________

Safe speed, collision

Raster Chart

Scanned copy of chart paper

This is unauthorized use of GPS:

Selective Availability (S/A)

Drift

Speed of the current

What are two types of tools used to determine distance?

Stadimeter, radar

A vessel proceeding along the course of a narrow channel shall keep to the ________ side.

Starboard

1 degree of latitude equals

60 nautical miles

What makes a vessel "restricted in her ability to maneuver?"

A vessel which from the nature of her work is unable to keep out of the way of another vessel.

Anchored and Aground

Anchored <50m All-round white light Black ball- day shape Anchored >50m Two all-round white lights (fwd higher than aft) Anchored >100m Same as >50m with deck lights on Aground Two all round white lights (fwd higher than aft) Two all round red lights in a vertical line Three black balls - day shape

Vessels Not Under Command

Two all-round red lights in a vertical line Two black balls Sidelights and sternlight (if making way)

Semidirunal Tides

Two high tides and tow low tides

A head-on situation is

Two power driven vessels that are on reciprocal or nearly reciprocal courses

Mixed Tides

Variation of high and low tides per day

Power Driven Vessel

Vessel > 50m Two mast headlights Sidelights & sternlight Vessel < 50 m One mast headlight Sidelights & sternlight Vessel < 12 m All-round white in lieu of separate masthead and stern lights; sidelights Vessel < 7 m (int'l only max 7kts) All-round white only

Who is the stand on vessel in an overtaking situation?

Vessel being overtaken

Sound Signal equipment

Vessel under 12 m → Efficient sound signal Vessel 12 m or more → Whistle and bell Vessel 100 m or more → Whistle, bell, and gong

Pilot vessels

White over red lights

Who does the Navigator report to directly in the administration chain of command?

XO

I intend to overtake you on your starboard side // Concur (Inland)

_

I'm altering course to starboard/ I intend to leave you on my port side (same as intl)

_

I'm altering course to port/ I intend to leave you on my starboard side (same as intl)

_ _

I am operating astern propulsion (going backwards)

_ _ _

DANGER / I do not concur with your intent

_ _ _ _ _

I intend to overtake you on your starboard side (International)

___ ___ _

I intend to overtake you on your port side (International)

___ ___ _ _

A vessel crossing a traffic separation scheme must.....

Cross at a perpendicular (right) angle

Neap tide

When the sun and moon are in opposition to each other (perpendicular to one another)

Coastal Waters

10-30 nm

Piloting Waters

2-10 nm

What is the overtaking angle?

22.5 degrees

What type of electronic chart is used by the Navy?

DNC

____________ is the celestial equivalent of latitude

Declination

Variation

Difference between true and magnetic north

Set

Direction of the current

Spring tide

Earth and moon act together (in a line)

A vessel entering a traffic separation scheme must.....

Enter at the smallest angle possible

Deviation

Error of a magnetic compass due to the magnetic nature of the ship.

Sound and light signals in restricted visibility

Every 2 min One prolonged (___) Underway, making way Two prolonged (___) underway , not making way One prolonged, two short (___ _ _) NUC, RIATM, CBD, Sailing, FIshing, Towing One prolonged, three short (___ _ _ _) Last vessel in tow Four short (_ _ _ _) Pilot vessel on duty Ever one min Anchored <100m (5 sec rapid bell) >100m (5 sec rapid bell) + (5 sec rapid gong) Give warning (_ _____ _) Aground <100m (3 gong strokes) + (5 sec rapid bell) +(3 gong strokes) >100m (3 gong strokes) + (5 sec rapid bell) + (3 gong strokes) + (5 sec rapid bell)

If a barometer drops suddenly in clear weather, what can be expected?

Expect a storm

Atmospheric pressure is the horizontal movement of the atmosphere

False

Longitude can be used to measure distance on a chart.

False

The prime meridian and equator are small circles

False

When taking action to avoid collision, a succession of small alterations of course/speed should be used.

False

Fishing Vessels and Trawling Vessels

Fishing Vessels Red over white Trawling Green over white Day shape Hourglass

Flood Current

High tide or high water

Bridge problem is most concerned with?

High tides

Current

Horizontal movement of water

________ Circles are great circles on the celestial sphere, through celestial poles.

Hour

Vessels Constrained by Draft (International Only)

Three red all-round lights in a vertical line Black cylinder - dayshape Regular lights for a power driven vessel

Navigable semicircle

To the left of the storm track

Dangerous semicircle

To the right of the storm track

Any action taking to avoid collision shall be positive, made in ample time and with due regard to the observance of good seamanship.

True

One of the greatest risks of ECDIS-N is an over reliance that leads to complacency.

True

You can query objects on Vector Charts for detailed information.

True

Truly valiant marines don't cry at weddings

True + Variation = Magnetic + Deviation = Compass (Add West)

Which ECDIS system is used by the Navy for surface ships and submarines? a) VMS b) GPS c) PPS d) NTCSS

a) VMS