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.


17: The mooring line labeled "E" is called a(n) __________. (DO44DG )


54: Your vessel has grounded on a bar. What should you do?


139: A "barrel" is a unit of liquid measure equivalent to __________.


162: Oil may NOT be transferred unless __________.

    N a. there are two certificated tankermen on each vessel
    N b. the vessel is equipped with constant-tension winches
    Y c. discharge containment equipment (i.e. drip pans) are in place
    N d. All of the above

177: The measurement of the amount of force a towing vessel is capable of applying to a motionless tow is called __________.

    N a. shaft horsepower
    N b. delivered horsepower
    Y c. bollard pull
    N d. towrope pull

277: Allied Naval Control of Shipping (NCS) has been established. Which statement is TRUE?

    N a. The Naval Control of Shipping Organization of each nation will serve their own ships only.
    N b. Allied ships, which are at sea when an emergency is declared, will all be controlled by a central authority.
    N c. The conduct of US-flag ships in an allied port will be controlled by US NCS authorities.
    Y d. After Naval Control of Shipping has been established, permission to sail must come from local naval authorities or consular officers.

421: An International Tonnage Certificate will be issued to a vessel when it meets several requirements, one of which is that the vessel must __________.

    N a. admeasure over 100 GT
    Y b. be 79 or more feet in length
    N c. engage in intercoastal or international trade
    N d. be issued a Certificate of Inspection

448: Hygroscopic cargoes should be ventilated when __________.

    Y a. going from a warm to a cold climate
    N b. the dew point of the outside air is greater than the dew point of the air in the hold
    N c. the dew point of the air in the hold is very low
    N d. the outside dew point is 60°F (16°C) and the cargo temperature is 54°F (12°C)

451: What is official proof of a vessel's ownership?

    Y a. Certificate of Documentation
    N b. Bill of Lading
    N c. Transfer Certificate
    N d. Logbook

534: Which is part of the ground tackle?

    N a. Charlie noble
    Y b. Devil's claw
    N c. Gooseneck
    N d. Rat's tail

602: Which emergency equipment should you keep near the towing bitts?

    N a. A self-contained breathing apparatus (SCBA)
    N b. A boat hook and a spanner wrench
    Y c. A fire ax and/or cutting torch
    N d. A Stokes litter basket

690: A rescue helicopter's hoist area should have a radius of at least __________.

    N a. 6 feet of clear deck
    N b. 10 feet of clear deck
    N c. 25 feet of clear deck
    Y d. 50 feet of clear deck

709: The designations A,B,C,D, and E grades of cargo refer to the __________.

    N a. degrees of quality of petroleum products
    Y b. flash point range and Reid vapor pressure index of petroleum products
    N c. grades of crude oil
    N d. pour point, color, and viscosity index of petroleum products

726: A common occurrence when a vessel is running into shallow water is that __________.

    N a. the wake is less pronounced
    N b. the vessel is more responsive to the rudder
    Y c. "squat" will cause a decrease in bottom clearance and an increase in draft
    N d. All of the above

872: In a foreign port with a consulate, the U.S. Consul may excuse the Master from personally appearing before him to consent to the mutual release of an injured seaman, when the __________.

    Y a. injury requires immediate inpatient hospitalization of the seaman
    N b. Master authorizes the agent to act in his place
    N c. ship is still in port and the seaman can appear before the Consul after medical treatment
    N d. seaman also consents to the absence, and there is no dispute as to the wages due

914: When natural fiber rope gets wet, the __________.

    N a. overall strength of the line will decrease
    Y b. line shrinks in length
    N c. line will become more elastic
    N d. line will be easier to handle

922: You are on watch at sea at night, and a fire breaks out in #3 hold. What would you NOT do immediately?

    N a. Shut down the cargo hold ventilation.
    N b. Sound the fire alarm signal to rouse out all hands.
    N c. Call the Master.
    Y d. Proceed to the space and inspect the extent of the fire.

955: In which case is the IOPP Certificate of an inspected vessel NOT invalidated?

    Y a. The required oily-water separator malfunctions.
    N b. The ship is transferred to Liberian registry.
    N c. An annual survey is conducted fifteen months after the date of certificate issuance.
    N d. A 15 ppm oily-water separator is replaced by a 100 ppm oily-water separator.

1044: Using a safety factor of 6, determine the safe working load of a line with a breaking strain of 30,000 pounds.

    N a. 4,000 lbs.
    Y b. 5,000 lbs.
    N c. 20,000 lbs.
    N d. 100,000 lbs.

1073: You are preparing to slush a stay on your vessel by lowering yourself down the stay in a bosun's chair. The proper way to do this is to ride down the stay on a riding shackle __________.

    N a. with the pin of the shackle riding on the stay
    Y b. with the pin of the shackle through the chair's bridle eye
    N c. with a hook attaching the chair to the riding shackle
    N d. connected to a second shackle on the chair

1083: Which of the knots, bends, or hitches shown in the illustration would you use to properly secure a bosun's chair to a gantline? (D030DG )

    N a. G
    N b. I
    N c. Q
    Y d. R

1122: Freeing ports on a vessel with solid bulwarks __________.

    N a. prevent stress concentration in the bulwark
    N b. permit easy jettison of deck cargo in an emergency
    N c. provide openings through the bulwarks for mooring lines
    Y d. allow water shipped on deck to flow off rapidly

1126: You are approaching a pier and intend to use the port anchor to assist in docking port side to. You would NOT use the anchor if __________.

    N a. the current was setting you on the pier
    N b. another vessel is berthed ahead of your position
    N c. the wind was blowing from the starboard side
    Y d. there is shallow water enroute to the berth

1141: A vessel has arrived in a U.S. port from a foreign voyage. Preliminary entry has been made. Formal entry at the U.S. Custom House must be made within how many hours after arrival (Sundays and holidays excepted)?

    N a. 12
    N b. 24
    Y c. 48
    N d. 72 without exception

1194: What type of line melts easiest?

    N a. Wire
    N b. Dacron
    N c. Nylon
    Y d. Polypropylene

1234: Which type of line will stretch the most when under strain?

    N a. Polypropylene
    N b. Dacron
    Y c. Nylon
    N d. Manila

1271: The citizenship of a crew member of a vessel in a U.S. port is determined solely by the __________.

    N a. Customs Officer
    Y b. Immigration Officer
    N c. Coast Guard
    N d. Union Official

1354: A 6x19 wire rope would be __________.

    N a. 6 inches in diameter and 19 fathoms long
    N b. 6 inches in circumference with 19 strands
    Y c. 6 strands with 19 wires in each strand
    N d. 19 strands with 6 wires in each strand

1499: In illustration D044DG, the mooring line labeled "E" is called a(n) __________. (DO44DG )

    N a. bow line
    N b. forward breast line
    N c. after spring line
    Y d. bow spring line

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

1849: The knot lettered U is a __________. (DO30DG )

    Y a. half hitch
    N b. round knot
    N c. becket bend
    N d. plain whipping

1999: When shoring a damaged bulkhead, effort should be taken to spread the pressure over the __________.

    Y a. maximum possible area
    N b. minimum possible area
    N c. nearest watertight door
    N d. nearest longitudinal girder

2078: While towing, bridle legs of unequal lengths may cause __________.

    N a. the bridle to foul
    Y b. the shorter leg to fail
    N c. chafing on the fairlead or bitts
    N d. a bent swivel

2081: A seaman is reported missing in the morning and was last seen after coming off the mid-watch. Which type of turn would you use to return to the track-line steamed during the night?

    Y a. Williamson
    N b. Racetrack
    N c. 180° turn
    N d. Anderson

2092: You are signing on a crew. When they present their Merchant Mariner's Documents, you should suspect a fraudulent document if it has a single endorsement that says __________.

    N a. see Certificate of Registry
    N b. any unlicensed rating in the deck department including AB
    N c. Steward's Department (F.H.)
    Y d. Bosun

2112: What is NOT surveyed at an annual load line survey?

    N a. The overall structure and layout of the vessel for alterations to the superstructure
    Y b. The bilge pumping system
    N c. Main deck hatch covers
    N d. Portholes and deadlights in the side plating

2253: What is the area of a circle with a radius of 17 feet after a sector of 57° has been removed?

    Y a. 764.17 sq. ft
    N b. 190.66 sq. ft
    N c. 145.27 sq. ft
    N d. 36.85 sq. ft

2272: Which knot is secure only when there is a strain on the line? (D030DG )

    N a. H
    N b. I
    Y c. L
    N d. P

2361: The BEST information on the nature and extent of damage to the vessel is obtained from __________.

    N a. alarms and monitoring devices
    N b. the engineroom watch
    Y c. personnel at the scene of the damage
    N d. the bridge watch

2452: Which is an advantage of using watertight longitudinal divisions in double bottom tanks?

    Y a. Cuts down free surface effect
    N b. Increases the rolling period
    N c. Decreases weight because extra stiffeners are unneeded
    N d. Lowers the center of buoyancy without decreasing GM

2459: Tripping defects in anchors frequently occur in __________.

    N a. deep water
    N b. shallow water
    N c. stiff soils
    Y d. soft soils

2508: What is required to launch a boat stowed in a crescent davit?

    N a. Hoist the boat clear of the cradle.
    N b. Release the outboard part of the cradle.
    N c. Rig the tricing lines.
    Y d. Crank the crescent out.

2712: Which two Great Lakes are considered hydraulically as one?

    N a. Lakes Superior - Huron
    Y b. Lakes Michigan - Huron
    N c. Lakes Erie - St. Clair
    N d. Lakes Erie - Ontario

2714: The major components which determine the length of catenary in a deployed anchor cable are cable tension, cable weight, and __________.

    N a. water density
    N b. bottom conditions
    N c. environmental forces
    Y d. water depth

2776: How are aids to navigation on the Great Lakes arranged geographically?

    N a. In a westerly and northerly direction, except on Lake St. Clair
    N b. In an easterly and southerly direction, except on Lake Erie
    Y c. In a westerly and northerly direction, except on Lake Michigan
    N d. In an easterly and southerly direction, except on the New York State Barge Canal

2809: The fitting at the end of a cargo line in a tank that allows suction to be taken close to the bottom of a tank is a __________.

    N a. suction end
    N b. strainer
    Y c. bell-mouth
    N d. vacuum valve

2926: Many sheath-screw davits have markings to indicate the maximum angle to which they should be cranked out. If the angle is exceeded, the davit __________.

    N a. may jam against the stops
    N b. will not automatically position the boat at the embarkation station
    Y c. screw may come out of the sheath
    N d. will chafe against the falls and may cause their failure

3068: While loading a cargo of grain, your vessel develops a list to starboard. This will be corrected by __________.

    N a. the compensating tanks on the high side
    Y b. the list man changing the discharge location of the chutes
    N c. allowing the grain to level itself as the hold fills to the spar deck level
    N d. trimming the final loading cone by hand

3109: When hip towing, a line led from the bow of the towing vessel aft to the vessel being towed would be a __________.

    N a. backing line
    Y b. towing line
    N c. stern line
    N d. breast line

3148: The part of the anchor indicated by the letter H is the __________. (D038DG )

    N a. fluke
    N b. shank
    N c. tripping palm
    Y d. crown

3176: The part of the anchor indicated by the letter G is the __________. (D038DG )

    N a. fluke
    N b. shank
    Y c. tripping palm
    N d. crown

3439: Horizontal fore or aft motion of a vessel is known as __________.

    N a. pitch
    Y b. surge
    N c. sway
    N d. roll

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

3587: Following a serious marine incident, a device to test an individuals breath can be used by __________.

    Y a. any individual trained to conduct such tests
    N b. the marine employer
    N c. qualified medical personnel only
    N d. any USCG licensed deck officer

4030: While discharging a cargo, the stripping of the tanks falls behind schedule. This would indicate the __________.

    N a. main pumps are working at a high discharge pressure
    Y b. main pumps are leaving too much oil in the tanks
    N c. stripping pump is not primed
    N d. stripping line is cross-connected to the main line

4043: When backing down with sternway, the pivot point of a vessel is __________.

    N a. aft of the propellers
    Y b. about one-quarter of the vessel's length from the stern
    N c. about one-third of the vessel's length from the bow
    N d. at the bow

4072: How should you signal the crane operator to stop in an emergency?

    N a. Extend arm with the palm down and hold this position rigidly.
    N b. Place clasped hands in front of your body.
    Y c. Extend arm and move hand rapidly right and left with the palm down.
    N d. Place both fists in front of the body with the thumbs pointing outward.

4160: According to the IMO Code, what are the minimum number of securing points that should be on each side of a "road vehicle", whose gross vehicle mass is between 20 tons and 30 tons, when carried on Ro-Ro vessels?

    N a. One
    N b. Two
    Y c. Three
    N d. Four

4164: According to the IMO Code, what are the minimum number of securing points that should be on each side of a "road vehicle", whose gross vehicle mass is between 30 tons and 40 tons, when carried on Ro-Ro vessels?

    N a. One
    N b. Two
    N c. Three
    Y d. None of the above

4272: Which action should be taken immediately by the operator of a pedestal crane, if crane control is lost?

    N a. Increase power to the crane to regain control.
    N b. Place control levers in opposite positions.
    Y c. Let go of both control levers and return to the neutral positions.
    N d. Check the circuit breakers.