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.


21: The American Consul has asked the Master of a vessel bound for a port in the U.S. to transport a destitute seaman back to the U.S. Which action may the Master take?


35: In a national emergency, when communicating via the Navy, messages are sent by precedence. A message designated ROUTINE will be delivered within __________.


49: Flammable liquid means any liquid which gives off flammable vapors at or below __________.


61: Deckhands onboard towing vessels shall be divided into 3 watches when on a trip exceeding __________.

    Y a. 600 miles
    N b. 700 miles
    N c. 800 miles
    N d. 1000 miles

133: The standard unit of liquid volume used in the petroleum industry, as well as the tanker industry, is a __________.

    Y a. barrel
    N b. drum
    N c. gallon
    N d. liter

181: Your vessel is on an extended foreign voyage. Several vacancies have occurred in your unlicensed crew through sickness and repatriation. Which statement is correct?

    N a. Aliens may be employed except that all U.S. flag vessels must maintain no less than 90% U.S. citizens in the crew.
    Y b. Qualified aliens may be employed to fill the vacancies.
    N c. Seamen to fill vacancies must be flown from U.S. to join the vessel in the foreign port.
    N d. Vacancies can only be filled by U.S. citizens with valid Merchant Mariner's Documents.

239: Flame screens are used to __________.

    N a. contain flammable fumes
    N b. protect firefighters from flames
    Y c. prevent flames from entering tanks
    N d. keep flames and sparks from getting out of an engine's exhaust system

258: Your U.S. tankship is designed to carry anhydrous ammonia in bulk. The keel was laid in 1980. Which statement concerning the carriage of this cargo is TRUE?

    N a. A flammable gas detection system must be installed in each cargo pump room.
    Y b. The cargo may be gauged by automatic float type devices.
    N c. Carriage of this cargo is authorized by issuance of an IMO Certificate.
    N d. Aluminum, copper, zinc, and mercury are allowed in valve parts in contact with the cargo.

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

313: With the exception of a Coast Guard approved commercial hybrid Personal Flotation Device (PFD), which type of life preserver must be carried for each person on board an uninspected passenger vessel?

    Y a. Type I
    N b. Type II
    N c. Type III
    N d. None of the above

442: "Ease the rudder" means to __________.

    N a. move the rudder slowly in the direction of the most recent rudder command
    Y b. decrease the rudder angle
    N c. bring the rudder amidships
    N d. steer the course which is your present heading

558: A heated bulkhead has the effect on a hygroscopic commodity of __________.

    N a. causing moisture to accumulate against the bulkhead
    N b. lowering the vapor pressure of the commodity
    N c. lowering the dew point of the air
    Y d. raising the vapor pressure of the commodity

615: When a wedge of water builds up between the head of the barge and the bank it is referred to as __________.

    Y a. bank cushion
    N b. bank suction
    N c. bow wave
    N d. veering cushion

723: What safety precautions must you take when maneuvering on a towing hook?

    N a. The engines must be operated on the slow bell.
    Y b. Clear the afterdeck and fantail of personnel.
    N c. Lash the hook closed so it does not open accidentally.
    N d. The towing winch engine must be running.

725: By law, a user of marijuana shall be subject to __________.

    N a. loss of pay during the period of such use
    N b. reprimand by the US Coast Guard
    Y c. revocation of license or certificate
    N d. termination of employment

863: When underway with a tow, you are required to notify the Coast Guard in which casualty situation?

    N a. Damage to property amounting to $12,500
    Y b. Accidental stranding or grounding
    N c. Loss of bridge-to-bridge radio capability
    N d. An injury requiring first aid treatment

866: For the deepest water when rounding a bend in a river, you should navigate your vessel __________.

    N a. toward the inside of the bend
    Y b. toward the outside of the bend
    N c. toward the center of the river just before the bend, then change course for the river's center after the bend
    N d. in the river's center

1008: When anyone voluntarily deposits his/her license or document with a Coast Guard investigating officer __________.

    N a. he/she permanently gives up rights to the license or document
    Y b. it may be for reasons of mental or physical incompetence
    N c. it must be for reason of addiction to narcotics
    N d. All of the above

1051: A vessel arrives in San Francisco from a foreign voyage. When MUST the Master make formal entry at the custom house?

    N a. Within 24 hours after arrival, Sundays and holidays excepted
    Y b. Within 48 hours after arrival, Sundays and holidays excepted
    N c. Within 48 hours and before all foreign cargo is discharged for that port
    N d. Within 24 hours after arrival

1092: When a helmsman receives the command "Right 15 degrees rudder," the helmsman's immediate reply should be __________.

    N a. "Rudder is right 15 degrees"
    N b. "Aye Aye Sir"
    Y c. "Right 15 degrees rudder"
    N d. No reply is necessary, just carry out the order.

1117: The knot used to form the bridle at the standing part of a gantline rigged to a stage is a __________.

    N a. sheet bend
    N b. carrick bend
    N c. fisherman's bend
    Y d. bowline

1117: The knot used to form the bridle at the standing part of a gantline rigged to a stage is a __________.

    N a. sheet bend
    N b. carrick bend
    N c. fisherman's bend
    Y d. bowline

1139: The pivoting point of a vessel going ahead is __________.

    N a. near the stern
    N b. at the hawsepipe
    Y c. about one-third of the vessel's length from the bow
    N d. about two-thirds of the vessel's length from the bow

1143: When rigging a stage, the standing part should be fastened to the horns of a stage with which of the following hitches?

    N a. Clove hitch
    N b. Timber hitch
    Y c. Marlinespike hitch
    N d. Double blackwall hitch

1148: The document which acknowledges that the cargo has been received and is in the carrier's custody is called the __________.

    Y a. Dock Receipt
    N b. Hatch Report and Recapitulation
    N c. Cargo Manifest
    N d. Stowage Plan

1202: Under the Carriage of Goods by Sea Act of 1936, a vessel will be liable for damage to cargo when the damage arises from __________.

    N a. an act of war
    Y b. lack of ventilation in transit
    N c. perils of the sea
    N d. an error in navigation

1220: Who certifies the safe working load of cargo cranes on a vessel?

    N a. U.S. Coast Guard
    Y b. American Bureau of Shipping
    N c. Society of Naval Architects and Marine Engineers
    N d. National Cargo Bureau

1224: Which is NOT a recommended practice when handling nylon line?

    N a. Nylon lines which become slippery because of oil or grease should be scrubbed down.
    Y b. Manila line stoppers should be used for holding nylon hawsers.
    N c. When easing out nylon line, keep an extra turn on the bitt to prevent slipping.
    N d. Iced-over nylon lines should be thawed and drained before stowing.

1256: You are docking an oceangoing single-screw vessel under normal circumstances with a single tug. The tug is usually used to __________.

    Y a. control the bow and is tied to the offshore bow
    N b. control the stern and is tied to the stern on the offshore side
    N c. pull the vessel into the slip and is tied to the bow
    N d. push the ship bodily alongside and is tied to the offshore side amidships

1286: The anchors should be dropped well out from the pier while at a Mediterranean moor to __________.

    N a. eliminate navigational hazards by allowing the chain to lie along the harbor bottom
    N b. increase the anchor's reliability by providing a large catenary in the chain
    Y c. permit the ship to maneuver in the stream while weighing anchors
    N d. prevent damage to the stern caused by swinging against the pier in the approach

1292: The Articles of Agreement __________.

    N a. is also known as a Merchant Mariner's Document
    N b. designates the quarters a seaman will occupy during a voyage
    Y c. advises the crew of the conditions of employment
    N d. are signed by each crewmember at the end of the voyage

1323: "Ease the rudder" means to __________.

    Y a. decrease the rudder angle
    N b. move the rudder slowly in the direction of the most recent rudder command
    N c. bring the rudder amidships
    N d. steer the course which is your present heading

1484: A metal eye spliced into a wire is called a __________.

    N a. cyclops
    N b. fish eye
    Y c. thimble
    N d. chip

1494: After splicing an eye in a piece of wire rope, the splice should be parceled and served to __________.

    N a. strengthen the line
    N b. increase its efficiency
    Y c. prevent hand injury by covering loose ends
    N d. make the line more flexible

1519: When snaking cargo into the wing of a hold with the cargo winch, the runner should be lead from the __________.

    N a. head block to a snatch block
    Y b. heel block to a snatch block
    N c. lizard to a snatch block
    N d. winch to a snatch block

1567: The mooring line shown as "A" is called a(n) __________. (DO44DG )

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

1633: The strongest way to join the ends of two ropes is with a __________.

    N a. back splice
    Y b. short splice
    N c. square knot
    N d. carrick bend

1671: The number of certificated able seamen and lifeboatmen required on a vessel is determined by the __________.

    N a. International Maritime Organization
    N b. Corps of Engineers
    Y c. Coast Guard
    N d. American Bureau of Shipping

1731: You are in charge of a 225-gross ton tug preparing to depart from Houston, Texas, with a loaded 2500-gross ton tank barge bound for New York. Prior to departure, regulations require that you __________.

    N a. record the status of all firefighting equipment
    Y b. record the barge's load line and draft readings
    N c. record the condition of the towing gear
    N d. have on board an Official Logbook in lieu of other forms of records

1751: The load line certificate is issued by __________.

    Y a. the American Bureau of Shipping
    N b. the National Cargo Bureau
    N c. the United States Coast Guard
    N d. United States Customs

1793: The lines led forward from the bow and aft from the stern when a vessel is moored to the dock are __________.

    Y a. bow and stern lines
    N b. breast lines
    N c. halyards
    N d. warps

1923: Disregarding friction, a twofold purchase when rove to disadvantage has a mechanical advantage of __________.

    N a. 2
    N b. 3
    Y c. 4
    N d. 5

2098: Snow has obliterated surface features and the sky is covered with uniform, altostratus clouds. There are no shadows and the horizon has disappeared. What is this condition called?

    N a. Ice blink
    Y b. Whiteout
    N c. Water sky
    N d. Aurora reflection

2453: On a ship's crane, the load chart relates the allowable load to the combination of the boom length and __________.

    N a. winch speed
    N b. boom strength
    Y c. load radius
    N d. cable strength

2696: You are on a power-driven vessel proceeding down a channel, with the current, on a river on the Great Lakes System. If you meet another power-driven vessel who is upbound, your responsibilities include __________.

    N a. backing down to get out of the way of the other vessel
    N b. waiting for the other vessel to signal her intentions, and then answering promptly
    Y c. proposing a safe way to pass
    N d. All of the above

2768: Which of the Great Lakes lies entirely within the United States?

    N a. Lake Ontario
    N b. Lake St. Clair
    Y c. Lake Michigan
    N d. Lake Superior

2789: Your vessel is approaching the International Bridge on the St. Marys River. If the gage on the bridge, read from top to bottom, indicates 124 ft. and the IGLD (1955) is 600 ft., determine the actual vertical clearances between the existing water level and the lowest point of the bridge over the channel.

    Y a. 124 feet
    N b. 476 feet
    N c. 724 feet
    N d. 840 feet

2789: Your vessel is approaching the International Bridge on the St. Marys River. If the gage on the bridge, read from top to bottom, indicates 124 ft. and the IGLD (1955) is 600 ft., determine the actual vertical clearances between the existing water level and the lowest point of the bridge over the channel.

    Y a. 124 feet
    N b. 476 feet
    N c. 724 feet
    N d. 840 feet

3008: A list signal of one white light indicates that the vessel is __________.

    N a. on an even keel
    Y b. listing about 1° to the side the light is displayed on
    N c. listing over 5°With the light displayed on the high side
    N d. listing, and the chutes should be directed to the side where the light is displayed

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

3170: A license for apprentice mate (steersman) of uninspected towing vessels shall be renewed within what time period before or after the expiration date?

    N a. 30 days
    N b. 90 days
    N c. 6 months
    Y d. 12 months

3360: On a light tow, what could you substitute for a fishplate?

    Y a. heart-shaped shackle
    N b. pelican hook
    N c. swivel
    N d. ring

3652: You are lifting a one-ton weight with a swinging boom. When comparing the stresses in the rig with the boom at 20° to the horizontal to the stresses when the boom is at 60° to the horizontal, which statement is TRUE?

    N a. The stress on the topping lift is greater at 60°.
    N b. The thrust on the boom is greater at 20°.
    N c. The stress on the heel block is less at 20°.
    Y d. The stress on the masthead fairlead for the topping lift is greater at 20°.

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

3689: The wildcat is linked to the central drive shaft on most windlasses by __________.

    N a. an electromagnetic brake
    N b. a hydraulic coupling
    N c. aligning the keyways on both and inserting a key
    Y d. a mechanical coupling where lugs engage detents

3740: Instructions to the crew in the use of all the ship's lifesaving equipment shall be completed __________.

    N a. before sailing
    N b. within one week of sailing
    N c. in one month and repeated quarterly
    Y d. within any two month period

4122: The lashings used on Ro-Ro vessels should be capable of withstanding the forces of __________.

    N a. pitching and heaving
    N b. rolling
    N c. any force of gravity acting on the lashes
    Y d. All of the above

4203: Which of the following statements is/are FALSE concerning cranes being installed on the centerline of vessels?

    N a. One crane is able to work both sides of the ship.
    N b. One crane is able to work one end of two adjacent hatches.
    Y c. A centerline crane can never work more than one hatch.
    N d. All of the above

4250: Which action(s) is/are included in crane operations?

    N a. Pre-operation checks and start-up
    N b. Removing booms from stowage
    N c. Luff, slew, and hoist operations
    Y d. All of the above

4275: During which condition should the operator of a pedestal crane shutdown operations?

    N a. Lightning
    N b. High winds
    N c. Fire aboard
    Y d. All of the above