USCG General Deck: Master's License

This is an interactive test. Read each question and select the proper answer by clicking on the appropriate answer. If a "Y" appears, your choice is correct. If a "N" appears, more study may be in order.


4: Considering manning requirements for US flag vessels, your 2 watch cargo vessel has a deck crew of 20 people, exclusive of officers. How many of these people do the manning regulations require to be able seamen?


91: You are the person in charge of a 199 GRT uninspected towing vessel engaged in coastwise towing from the Gulf of Mexico to New York, a distance in excess of 600 miles. Which statement is FALSE?


94: All of the following records are usually maintained by the watch-standing officers aboard a vessel EXCEPT the __________.


115: During the course of a voyage, a seaman falls on the main deck and injures his ankle. The Master should submit a Report of Marine Accident, Injury or Death if the __________.

    N a. injury is the result of misconduct
    N b. injury results in loss of life only
    N c. injured need first aid
    Y d. injured is incapacitated

127: In illustration D044DG, the mooring line labeled "C" is called a __________. (DO44DG )

    Y a. breast line
    N b. shore line
    N c. spring line
    N d. stern line

149: A standard net barrel of petroleum products is __________.

    Y a. 42 gallons at 60°F
    N b. 48 gallons at 70°F
    N c. 50 gallons at 50°F
    N d. 60 gallons at 100°F

191: An alien crewmember with a D-1 permit leaves the vessel in a U.S. port and fails to return. The first report you make should be to the __________.

    N a. Customs Service
    Y b. Immigration Service
    N c. local police
    N d. OCMI

212: 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 __________.

    Y a. the bow in and the stern out
    N b. both the bow and stern in
    N c. the bow out and the stern in
    N d. both the bow and stern out

222: A lot of special cargo of similar cartons, as shown, is to be loaded. What is the weight of the consignment? (D042DG )

    N a. 50 pounds
    N b. 1100 pounds
    N c. 1200 pounds
    Y d. 1250 pounds

303: What requires a Report of Marine Accident, Injury or Death?

    N a. Collision with a bridge
    N b. Injury beyond first aid
    N c. loss of life
    Y d. All of the above

311: The Shipping Articles shall be signed by each seaman and the __________.

    Y a. Master of the vessel
    N b. Shipping Commissioner
    N c. U.S. Coast Guard
    N d. U.S. Customs Service

327: You are on a multiple product tankship and carrying methyl acrylate, diethanolamine, and triethylamine. Which statement is TRUE?

    N a. Methyl acrylate may be loaded in a tank adjacent to diethanolamine but not triethylamine.
    Y b. The heating coils to the cargo tank loaded with methyl acrylate must be blanked off.
    N c. Valve components made of aluminum, copper, or zinc may not be in contact with the cargoes.
    N d. Each crew member working on deck must have an emergency escape breathing apparatus.

436: The rudders are amidships and both screws are going ahead. What will happen if the starboard screw is stopped?

    N a. The bow will go to port.
    Y b. The bow will go to starboard.
    N c. The bow will remain steady.
    N d. The stern will go to starboard.

515: When compared to a fiber towing hawser, what is NOT an advantage of a wire towing hawser?

    N a. Wire is easy to handle when properly spooled on the drum of a towing winch.
    Y b. Wire has more spring and shock resistance than fiber.
    N c. Wire can be used to tow heavier loads because of its smaller diameter and more manageable size.
    N d. Wire is subject to less deterioration if properly maintained.

617: In illustration D044DG, the mooring line labeled "A" is called a(n) __________. (DO44DG )

    N a. onshore stern line
    Y b. offshore stern line
    N c. after breast line
    N d. after spring line

719: Most crude oils are classified as grade __________.

    N a. A or B
    N b. B
    Y c. C or D
    N d. E

823: Which statement concerning a 298 GRT inspected tug engaged in towing from Seattle, WA, to Alaska is TRUE?

    N a. A licensed Master of Towing Vessels may serve as Master.
    N b. Crew must be signed on before a Shipping Commissioner.
    Y c. Each crew member must be issued a certificate of discharge at the time of discharge.
    N d. No able seamen are required.

847: When towing astern what equipment should be stowed ready for use near the towline?

    N a. First aid kit
    Y b. Axe or cutting torch
    N c. Fire extinguisher
    N d. Chafing gear

926: Usually the most gentle way of riding out a severe storm on a larger vessel is __________.

    N a. head on at slow speeds
    N b. hove to
    Y c. running before the seas
    N d. to rig a sea anchor

966: When a boat turns broadside to heavy seas and winds, thus exposing the boat to the danger of capsizing, the boat has __________.

    Y a. broached
    N b. pitchpoled
    N c. trimmed
    N d. yawed

1018: Which U.S. Government agency can suspend or revoke a Merchant Mariner's license for violating the load line act?

    N a. American Bureau of Shipping
    Y b. U.S. Coast Guard
    N c. U.S. Customs Service
    N d. U.S. Maritime Administration

1260: The function of the bilge keel is to __________.

    Y a. reduce the rolling of the vessel
    N b. serve as the vessel's main strength member
    N c. add strength to the bilge
    N d. protect the vessel's hull when alongside a dock

1436: How many feet are there in 2 shots of anchor chain?

    N a. 50
    N b. 60
    Y c. 180
    N d. 360

1464: When talking about wire rope, the lay of the wire is the __________.

    Y a. direction wires and strands are twisted together
    N b. number of strands in the wire
    N c. direction the core is twisted
    N d. material used in the core

1598: On a vessel with a single propeller, transverse force has the most effect on the vessel when the engine is put __________.

    N a. full ahead
    Y b. full astern
    N c. half ahead
    N d. slow astern

1627: A claim for cargo damages may be held against the shipowner if such damage is the result of failure of the ship's officers to __________.

    Y a. ensure the fitness and safety of cargo spaces
    N b. ensure adequate packaging of the cargo
    N c. prevent delays due to quarantine restrictions
    N d. correct all defects in the ship's construction

1761: Load lines for U.S. vessels are assigned by __________.

    N a. the U.S. Coast Guard
    Y b. the American Bureau of Shipping
    N c. Lloyd's Register of Shipping
    N d. the National Cargo Bureau

1774: Which knot is used to attach two different sized lines together?

    N a. Granny knot
    Y b. Sheet bend
    N c. Square knot
    N d. Thief knot

1805: In towing it is desirable for the tug and the tow to ride wave crests simultaneously because __________.

    Y a. shock loading on the tow line is reduced
    N b. towing speed is improved
    N c. the tow is more visible from the tug
    N d. the catenary of the towline is reduced

1818: When comparing twin screw tug to single-screw tugs, which statement about a twin-screw tug is FALSE?

    N a. If one engine fails, you do not lose control of the tow.
    N b. It is more maneuverable.
    Y c. It develops more bollard pull for the same horsepower.
    N d. It is generally subject to more propeller damage from debris in the water.

1856: When passing a hawser to the dock you would first use what line?

    N a. Gantline
    Y b. Heaving line
    N c. Preventer
    N d. Warp

1902: The joint indicated by letter D is a __________. (D033DG )

    N a. seam
    Y b. butt
    N c. span
    N d. sheet line

1979: What is a proper size block to use with a 3-inch circumference Manila line?

    N a. At least a 12-inch sheave
    Y b. 9-inch cheek, 6-inch sheave
    N c. 8-inch cheek, any size sheave
    N d. 6-inch cheek, 4-inch sheave

2027: Your vessel is issued a load line certificate dated 27 May 1992. What is NOT an acceptable date for one of the surveys for endorsements?

    N a. 28-Feb-93
    Y b. 27-Nov-93
    N c. 26-Aug-94
    N d. 27-May-95

2052: You are proceeding under NCS (Naval Control of Shipping) when it becomes necessary to send a distress message. Which precedence would you assign this message?

    Y a. O (IMMEDIATE)
    N b. P (PRIORITY)
    N c. R (ROUTINE)
    N d. Z (FLASH)

2224: When improperly tied, which knot shown is called a granny or thief's knot? (D030DG )

    N a. F
    N b. M
    N c. R
    Y d. W

2284: In determining the scope of anchor line to pay out when anchoring a small boat, one must consider the __________.

    N a. charted depth of water only
    Y b. depth of water, including tidal differences
    N c. type of line being used for the anchor rope
    N d. type of anchor being used

2335: When two lines are spliced together, __________.

    N a. the size of the lines at the splice decreases
    Y b. they are stronger than if knotted together
    N c. the overall strength of each line is increased
    N d. the bitter ends will resist rotting

2376: A vessel has an amidships superstructure. Which location would be most suitable for on-deck stowage of automobiles?

    N a. On top of #1 hatch
    N b. Beside the hatches, forward of the midships house
    N c. On top of the hatch immediately forward of the midships house
    Y d. On top of the hatch immediately aft of the midships house

2392: Determine the weight of a rectangular piece of 12.75 lbs. steel measuring 5 feet by 8 feet.

    Y a. 510.00 lbs.
    N b. 255.00 lbs.
    N c. 198.89 lbs.
    N d. 165.75 lbs.

2393: Determine the weight of a rectangular piece of 25.5 lbs. steel measuring 4.5 feet by 6.7 feet.

    N a. 285.6 lbs.
    N b. 329.7 lbs.
    N c. 591.2 lbs.
    Y d. 768.8 lbs.

2396: Determine the area of a triangle with a base of 5.8 feet and a height of 2.1 feet.

    N a. 12.2 square ft.
    N b. 7.9 square ft.
    Y c. 6.1 square ft.
    N d. 3.0 square ft.

2674: You operate a harbor craft on inland waters exclusively. If you regularly service or contact foreign flag vessels in the course of business, which statement is TRUE?

    N a. Your vessel must be inspected.
    Y b. Your crew must have identification credentials.
    N c. A customs official must be on board when contacting a foreign flag vessel.
    N d. All contacts with a foreign flag vessel must be reported to the U.S. Coast Guard.

2738: Assume that your vessel has just entered Lake Michigan via the Straits of Mackinac and is proceeding south to Chicago. Which statement is TRUE with respect to the aids to navigation you will encounter along this route?

    N a. Aids to navigation are serviced jointly by the U.S. and Canadian Coast Guard.
    Y b. Red buoys should be passed down your starboard side.
    N c. Green buoys mark the location of wrecks or obstructions which must be passed by keeping the buoy on the right hand.
    N d. All solid colored buoys are numbered, the red buoys bearing odd numbers and green buoys bearing even numbers.

2855: A 150-meter vessel is proceeding down the course of a narrow channel in the Great Lakes System. A 60-meter vessel is starting to cross the channel. Which statement is TRUE?

    Y a. If the smaller vessel is engaged in fishing, he shall not impede the passage of the other vessel.
    N b. The crossing vessel has the right of way.
    N c. The vessel in the channel must slow to her steerageway.
    N d. The larger vessel is considered to be a vessel restricted in her ability to maneuver.

2938: Which statement concerning storm surges on the Great Lakes is FALSE?

    Y a. They are common along the deeper areas of the lakes.
    N b. They cause rapid differences in levels between one end of the lake and the other.
    N c. The greatest water level difference occurs when the wind is blowing along the axis of the lake.
    N d. If the wind subsides rapidly, a seiche effect will most likely occur.

3050: Which characteristic is an advantage of a butterfly valve as compared to a gate valve?

    N a. Precise control over cargo flow
    Y b. Quick operation
    N c. No resistance to cargo flow when open
    N d. Less maintenance required

3100: A holder of a license as Master of towing vessels may work each 24 hours for a period not to exceed __________.

    N a. 6 hours
    Y b. 12 hours
    N c. 18 hours
    N d. 24 hours

3346: When connecting the tow bridle to a tug, the end of the bridle is passed with a __________.

    N a. heaving line
    N b. shot line
    N c. high line
    Y d. messenger line

3352: The signal man assisting the crane operator has his arm extended, his fingers closed, and his thumb pointing downward. This is the signal to __________.

    N a. hoist the load
    N b. raise the boom
    Y c. lower the boom
    N d. lower the load

3449: What term indicates an inward curvature of the ship's hull above the waterline?

    N a. Camber
    Y b. Tumble home
    N c. Deadrise
    N d. Flare

3518: A tug's horsepower available at the shaft is __________.

    N a. indicated horsepower
    Y b. brake horsepower
    N c. dynamic horsepower
    N d. net horsepower

3684: In towing, heaving lines are used for __________.

    N a. passing a tow bridle to the tug
    Y b. passing a messenger line
    N c. heaving in the tow bridle
    N d. service lines with rocket line throwers

4020: You are on a tankship discharging oil. When all of the oil that the main cargo pumps can handle is pumped out of a tank, the remainder is __________.

    N a. stripped out and pumped directly ashore into the mainline as the remaining cargo tanks are pumped out with the main pumps
    Y b. stripped to one tank and then pumped out with the main pumps
    N c. stripped out and pumped directly ashore after all the tanks have been emptied by the main pumps
    N d. gravitated to the centers from the wings and pumped out with the main pumps

4040: When towing another vessel astern, the length of the towline should be __________.

    N a. as long as possible
    N b. such that one vessel will be on a crest while the other is in a trough
    Y c. such that the vessels will be "in step"
    N d. not over two wave lengths in seas up to 10 feet

4118: Which factor(s) affect lashing requirements aboard Ro-Ro vessels?

    Y a. Ship’s characteristics and motion in a seaway
    N b. Trim of the vessel
    N c. Wide variations of air temperature
    N d. All of the above

4126: Which variable factor affects the initial lashing requirements aboard Ro-Ro vessels?

    Y a. Number, position and angle of lashings
    N b. Vessel's draft
    N c. Port of origin
    N d. ABS requirements

4150: Which of the following is/are TRUE regarding lashing requirements to secure vehicles aboard Ro-Ro vessels?

    N a. The securing of cargo on flats and trailers and in containers must be adequate to withstand both road and sea motions
    N b. The generally recommended lash angle cannot be greater than 45 degrees relative to the deck in any direction.
    N c. It is necessary for an adequate number of securing points on the vehicles themselves in order that lashings may be properly and safely utilized.
    Y d. All the above

4185: How could lashing gear used aboard Ro-Ro vessels be stowed when not in use?

    N a. Drape along brackets
    N b. Hang vertically in a sheltered area
    N c. Stow in bins at hatch coming side
    Y d. All of the above

4264: Which statement(s) is/are TRUE concerning crane cargo operations?

    N a. Lifting points on all equipment need not be checked prior to commencing a lift.
    N b. Cargo loaded into vehicles and/or containers prior to lifting need not be secured.
    Y c. Never exceed crane manufacturer’s limits concerning the safe working loads of cargo jibs.
    N d. All the above