Second/Third Mate of Unlimited Tonnage, Revision & Practice Exams

The SS AMERICAN MARINER has drafts of: FWD 28'-00", AFT 30'-04". Use the white pages of the Stability Data Reference Book to determine the drafts if you ballast the forepeak with 110.8 tons of seawater.

1. FWD 28'-08.2", AFT 29'-11.6"
2. FWD 28'-09.0", AFT 29' 11.0"
3. FWD 28'-09.8", AFT 29' 10.4" ✓
4. FWD 28'-10.6", AFT 29' 09.8"

How are chart legends which indicate a conspicuous landmark printed?

1. In italics
2. With underlined letters
3. In boldfaced print
4. In capital letters ✓

Which is the reference datum used in determining the heights of land features on most charts?

1. Mean low water
2. Half-tide level
3. Mean sea level
4. Mean high water ✓

At 0000 you fix your position and plot a new DR track line. At 0200 you again fix your position, and it is 0.5 mile east of your DR. Which statement is TRUE?

1. The current is westerly at 0.5 knot.
2. The current cannot be determined.
3. The drift is 0.25 knot. ✓
4. You must increase speed to compensate for the current.

Your vessel is on course 150°T, speed 17 knots. The apparent wind is from 40° off the starboard bow, speed 15 knots. What is the speed of the true wind?

1. 9.0 knots
2. 10.2 knots
3. 11.0 knots ✓
4. 12.0 knots

You are underway in heavy weather and your bow is into the seas. Which action should you take to prevent pounding?

1. Secure all loose gear on your vessel
2. Increase the speed of the vessel
3. Decrease the speed of the vessel ✓
4. Put the seas on a 85-degree angle from the bow

You are conducting trials to determine the maneuvering characteristics of your vessel. While making a turn, you take ranges and bearings of an isolated light with the results as shown. Based on this information, what is the advance for a turn of 45°? Illustration D034DG

1. 590 yards
2. 635 yards
3. 690 yards ✓
4. 740 yards

A tug should not come alongside a tank vessel in way of its cargo tanks while it is loading grade A, B, or C cargo without the permission of the __________.

1. cognizant OCMI
2. person in charge of the transfer ✓
3. superintendent of the shoreside facility
4. local fire department

Who must approve the vessel's trim and stability booklet?

1. Society of Naval Architects and Marine Engineers
2. National Cargo Bureau
3. International Maritime Organization
4. United States Coast Guard ✓

Every entry required to be made in the Official Logbook shall be signed. Who is required to sign this logbook?

1. Mate on watch
2. Master only
3. Purser, one of the Mates, and some other member of the crew
4. Master and Chief Mate or other member of the crew ✓

Your vessel is being assisted by an icebreaker. How should you indicate that you are ready to cast off the towline?

1. Sound one prolonged blast on the whistle
2. Sound five short blasts on his whistle
3. Display code letter "Y" (Yankee) ✓
4. Display code numeral "5"

Stress on the topping lift of a swinging boom can be reduced by __________.

1. raising the boom ✓
2. rigging a back stay
3. taking all slack out of the preventer
4. increasing the mechanical advantage of the cargo purchase

When stowing hazardous materials on deck, lashing of such cargo is permitted if __________.

1. the cargo is lashed to the adjacent guard rails
2. a wooden bin is constructed of at least 2-inch dunnage and bolted together
3. the lashings are secured to deck pad eyes ✓
4. there is at least 3 inches of dunnage on deck

Which of the following is classified as a flammable liquid?

1. Methyl alcohol ✓
2. Mineral spirits
3. Bunker C
4. Butane

Severe exposure to chlorine gas can be fatal. Chlorine gas is primarily a __________.

1. respiratory irritant ✓
2. blood poisoning agent
3. nerve paralyzing irritant
4. skin burning agent

In the United States, which organization sets the load line markings?

1. American Bureau of Shipping ✓
2. Coast Guard
3. IMO
4. Federal Maritime Board

What is the group of markings shown in illustration D003DG below called?

1. The loft mark
2. The test mark
3. The load line mark ✓
4. The water mark

Which term(s) are in the category of "oil" as used in the Oil Pollution Regulations?

1. Sludge
2. Fuel oil
3. Oil refuse
4. All of the above ✓

You are operating a 1,000 GT non-oceangoing tankship. It must be equipped with or capable of which of the following?

1. Be capable of retaining all oily mixtures onboard in the ship's bilges or sludge tank ✓
2. A means on the weather deck to stop each pump used to discharge oily waste overboard
3. Must maintain two pumps for discharging oily bilge slops
4. Shall have a fixed piping system for bilge slops with one outlet on each side of the weather deck

What can be done to prevent small oil spills on deck from going overboard?

1. Plugging the sounding pipes
2. Plugging the drains and scuppers ✓
3. Closing the lids on the vents
4. Driving wooden plugs into the vents

Which document shows a vessel's nationality, ownership, and tonnage?

1. Official Logbook
2. Certificate of Documentation ✓
3. Manifest Certificate
4. Bill of Lading Certificate

Which is the requirement for the name and hailing port of a documented commercial vessel?

1. It is required to be marked on the stern with the name of the vessel marked on both bows ✓
2. It is required to be marked on both bows and on the keel
3. It is not required to be marked anywhere on the vessel
4. It is required to be marked on the keel, stern, and both bows

According to the Lifesaving regulations in Subchapter W, fire and abandon ship drills must be held within 24 hours of leaving port if the percentage of the crew that has not participated in drills aboard that particular vessel in the prior month exceeds which percentage?

1. 5%
2. 10%
3. 25% ✓
4. 40%

What should you do if you have transmitted a distress call a number of times on channel 16 and have received no reply?

1. Turn up the volume on the receiver before transmitting again.
2. Repeat the message using any other channel on which you might attract attention. ✓
3. Key the microphone several times before transmitting again.
4. Report the problem to the head electrician.

The all-purpose nozzle will produce a fog spray when you take which action?

1. Pull the nozzle handle all the way back toward the operator
2. Insert a fog applicator between the fire hose and nozzle
3. Pull the nozzle handle back to a position where the handle is perpendicular to the plane of the nozzle ✓
4. Push the nozzle handle forward as far as it will go

You are testing a tank that contained gasoline by using a combustible gas indicator. Under testing, the tank sample caused the needle to move rapidly to 100 on the dial then fall to zero. What is the concentration of flammable gas?

1. The explosimeter is defective and giving a false reading.
2. Over the flammable range ✓
3. Within the flammable range
4. Less than the flammable range

You are proceeding to a distress site. The survivors are in liferafts. What will make your ship more visible to the survivors?

1. Steering a sinuous course
2. Turning on all available deck lights at night ✓
3. Dumping debris over the side to make a trail to your vessel
4. Steering a zig-zag course

You are reading the draft marks as shown in illustration D032DG. The water level forward leaves about 4 inches of the 11 visible, and the water level aft is at the top of the 10. What is the mean draft?

1. 10'-06"
2. 10'-08"
3. 10'-10" ✓
4. 11'-02"

A ship station license for your radiotelephone is valid for which of the following terms?

1. One year
2. Two years
3. Ten years ✓
4. The life of the vessel

Aboard ship, which term is given to the vertical flat plates running transversely and connecting the vertical keel to the margin plates?

1. Intercostals
2. Floors ✓
3. Stringers
4. Girders

If your vessel will list with equal readiness to either side, the list is most likely caused by which condition?

1. Excessive freeboard
2. Pocketing of free surface
3. Negative GM ✓
4. Off center weight

Which vessel is NOT required to have a radiotelephone?

1. A 34-foot vessel engaged in towing
2. A dredge operating in a channel
3. A 12-meter private yacht ✓
4. A vessel of 100 GT carrying 50 passengers for hire

Which signaling devices are required on inflatable liferafts?

1. Lantern
2. Very pistol
3. Air horn
4. Orange smoke signal ✓

When patching holes in the hull, how can pillows, bedding, and other soft materials be used?

1. As strongbacks
2. As gaskets ✓
3. As wedges
4. As shores

Which type of portable fire extinguisher is NOT designed for use on flammable liquid fires?

1. Foam
2. Water (cartridge-operated) ✓
3. Carbon dioxide
4. Dry chemical

What is the function of wearing rings found on some centrifugal pumps?

1. Seal pump shaft against entry of air
2. Isolate the outlet side from the inlet side ✓
3. Absorb erosion of high-velocity discharge stream
4. Dampen the turbulent discharge flow

If you are caught in the left semicircle of a tropical storm, in the Southern Hemisphere, which action should you take?

1. Place the wind on the port bow, and make as much way as possible ✓
2. Place the wind on the starboard quarter, hold course and make as much way as possible
3. Place the wind 2 points on the port quarter, and make as much way as possible
4. Place the wind dead ahead and heave to

Which term describes a light, feathery deposit of ice by sublimation of water vapor directly into the crystalline form on objects whose temperatures are below freezing?

1. Snow
2. Frost ✓
3. Glaze
4. Dew

Barometer readings in weather reports are given in terms of pressure at which reference location?

1. Washington, D.C.
2. The broadcasting station
3. Sea level ✓
4. The weather station

What does the lubber's line on a magnetic compass indicate?

1. Compass north
2. The vessel's compass heading ✓
3. Magnetic north
4. A relative bearing taken with an azimuth circle

Which is TRUE concerning air masses near the earth's surface?

1. They are not deflected by the earth's rotation
2. They move from areas of high pressure to areas of low pressure ✓
3. Air masses are not affected by the earth's gravity
4. In North America the air masses move from east to west

The velocity of the apparent wind can be more than the true wind, and come from the same direction, if certain conditions are present. One condition is that the __________.

1. true wind must be from dead astern
2. true wind velocity must be faster than the ship's speed
3. ship's speed must be less than the true wind velocity
4. true wind must be from dead ahead ✓

Under the IALA Buoyage Systems, which is TRUE of safe water marks?

1. They must show a composite group-flashing, Fl(2 + 1), green light
2. They may show a quick-flashing, Q(9)15s, white light
3. They may show a white Morse (A) light ✓
4. They may show a composite group-flashing, Fl(2 + 1), red light

What are Cirrus clouds primarily composed of?

1. Ice crystals ✓
2. Nitrogen
3. Snow crystals
4. Water droplets

The Light List shows that a navigational light has a nominal range of 5 miles and a height above water of 21 feet (6.4 meters). Your height of eye is 32 feet (9.8 meters) and the visibility is 1.0 mile. At what approximate range will you first sight the light?

1. 1.0 mile
2. 1.5 miles ✓
3. 5.0 miles
4. 11.7 miles

In illustration D044NG below, what type of buoy is indicated by the letter A?

1. Spar
2. Nun
3. Can ✓
4. Pillar

Information about the pilotage available at Miami harbor may best be obtained from which publication?

1. Sailing Directions
2. United States Coast Pilot ✓
3. World Port Index
4. Pilot Chart

Quadrantal error in a gyrocompass has its GREATEST effect on which of the following?

1. When the vessel is on intercardinal headings ✓
2. When the vessel is near the equator
3. When the vessel is on north or south headings
4. When the vessel is in high latitudes

Which maritime radio system, consisting of a series of coast stations, transmits coastal warnings?

1. SAFESEA
2. HYDROLANT/HYDROPAC
3. NAVTEX ✓
4. NAVAREA

You are on course 277°T and take a relative bearing of a lighthouse of 045°. What is the true bearing to the lighthouse?

1. 038°
2. 232°
3. 315°
4. 322° ✓

What is published by the U.S. Coast Guard?

1. U.S. Coast Pilot
2. Nautical Charts
3. Tide Tables
4. Light List ✓

The apparent wind is zero when which situation exists with the true wind?

1. The true wind is from ahead and equal to the ship's speed
2. The true wind is from astern and is twice the ship's speed
3. The true wind is from astern and equal to the ship's speed ✓
4. The true wind is zero

On an isomagnetic chart, which term is used for the line of zero variation?

1. An agonic line ✓
2. An isogonic line
3. The zero-variation line
4. A variation line

Some lights used as aids to marine navigation have a red sector to indicate a danger area. The limits of a colored sector of a light are listed in the Light List in which of the following manners?

1. True bearings as observed from the light toward the ship
2. An outline of the area of the sector
3. True bearings as observed from the ship toward the light ✓
4. Geographical positions outlining the area of the sector

You have another ship overtaking you close aboard to starboard. You have 3 radar targets bearing 090° relative at ranges of .5-mile, 1 mile, and 1.5 miles. Which term is given to these unwanted echoes?

1. Spoking
2. Multiple echoes ✓
3. Side-lobe echoes
4. Indirect echoes

What is the definition of height of tide?

1. The vertical distance from the tidal datum to the level of the water at any time ✓
2. The vertical difference between the heights of low and high water
3. The vertical difference between a datum plane and the ocean bottom
4. The vertical distance from the surface of the water to the ocean floor

You take a bearing of 313° and 076° of two objects. Which bearing of a third object will give the best fix?

1. 133°
2. 339°
3. 255°
4. 014° ✓

What is the equivalent of 37 min. 32 sec. in arc units?

1. 6°38'
2. 4°47'
3. 7°41'
4. 9°23' ✓

Which term is given to a radar display which is oriented, so that north is always at the top of the screen?

1. Composite display
2. Unstabilized display
3. Relative display
4. Stabilized display ✓

A position that is obtained by applying estimated current and wind to your vessel's course and speed is a(n) __________.

1. dead reckoning position
2. estimated position ✓
3. fix
4. None of the above

After an item of required safety equipment on a towing vessel fails, the owner or Master must consider all of these factors before continuing the voyage, EXCEPT the __________.

1. weather conditions, including visibility
2. dictates of good seamanship
3. estimated time of arrival promised to the customer ✓
4. safety of the vessel, considering the other traffic in the area

Buoys which mark dredging areas are painted which color?

1. Black
2. Green
3. Red
4. Yellow ✓

What is the primary source of the earth's weather?

1. The solar system
2. The moon
3. The sun ✓
4. The oceans

During daylight savings time the meridian used for determining the time is located farther __________.

1. east ✓
2. west in west longitude and east in east longitude
3. east in west longitude and west in east longitude
4. west

What kind of pressure systems travel in tropical waves?

1. High pressure
2. Low pressure ✓
3. Terrastatic pressure
4. Subsurface pressure