USCG Safety: 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.


283: Spreading oil on the open sea has the effect of __________.


298: Which is NOT a symptom of traumatic shock?


383: The purpose of the tripping line on a sea anchor is to __________.


408: If a person is unconscious from electric shock, you should first remove him from the electrical source and then __________.

    N a. administer ammonia smelling salts
    N b. check for serious burns on the body
    Y c. determine if he is breathing
    N d. massage vigorously to restore circulation

668: The midships house of your break bulk ship is constructed with an interior stair tower from the main deck to the bridge. Under what circumstances may the doors from each deck to the stair tower be kept open when underway?

    N a. They are to be kept closed at all times.
    N b. They may be kept open if the ventilation or air conditioning system is shut down.
    Y c. They may be kept open if they can be automatically closed from the bridge.
    N d. They can be kept open if the Muster List ("Station Bill") has personnel designated to close them in case of fire.

722: The SS AMERICAN MARINER will sail with the load shown. Use the white pages of The Stability Data Reference Book to determine the drafts. ST-0016

    N a. FWD 23'-03", AFT 27'-00"
    Y b. FWD 23'-07", AFT 26'-07"
    N c. FWD 24'-01", AFT 26'-02"
    N d. FWD 24'-06", AFT 25'-10"

740: What is NOT a motion of the vessel?

    N a. Pitch
    N b. Roll
    Y c. Trim
    N d. Yaw

840: If a vessel is sagging, what kind of stress is placed on the sheer strake?

    Y a. Compression
    N b. Tension
    N c. Thrust
    N d. Racking

844: If a crew member that was ill has died, which code should your message contain?

    N a. MPO
    Y b. MPR
    N c. MPK
    N d. MPJ

888: An oil fire is classified as class __________.

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

911: You are on a supply run to an offshore drilling rig. On board is the cargo listed. What is the height above the main deck of the center of gravity of the cargo? ST-0018

    N a. 3.75 feet
    N b. 3.02 feet
    Y c. 2.22 feet
    N d. 0.83 foot

976: Inflatable liferafts carried on passenger vessels must be annually __________.

    N a. overhauled by the ship's crew
    N b. sent to the Coast Guard for servicing
    N c. sent to the steamship company shore repair facility
    Y d. sent to a Coast Guard approved service facility

1060: The SS AMERICAN MARINER will sail with the load shown. Use the white pages of The Stability Data Reference Book to determine the drafts. ST-0024

    N a. FWD 26'-06", AFT 28'-10"
    N b. FWD 26'-10", AFT 28'-05"
    Y c. FWD 27'-00", AFT 28'-03"
    N d. FWD 27'-03", AFT 28'-00"

1145: When hoisting a boat on gravity type davits using an electric motor driven winch, the davit arms should be brought up __________.

    N a. to their final position with the winch operating at slow speed
    N b. to the bar stop, and then hand cranked to their final position
    Y c. until just before they make contact with the limit switch, and then hand cranked to their final position
    N d. to the embarkation deck, and then hand cranked to their final position

1182: An oxygen indicator can be used to determine if there is __________.

    Y a. sufficient oxygen in a compartment to support life
    N b. combustible gases present
    N c. hydrogen gas present
    N d. All of the above

1277: When possible, what is the FIRST step in fighting an engine fuel-pump fire which results from a broken fuel line?

    N a. Secure all engine room doors, hatches, and vents.
    Y b. Close the fuel line valve.
    N c. Check the spread of the fire with foam.
    N d. Cast the barge off the wharf.

1295: If you must land on a beach with an oar-propelled lifeboat through a heavy surf, the recommended method is to __________.

    N a. keep the bow directly in toward the beach, and tow the sea anchor off the stern
    N b. ride in on the back of a large breaker
    Y c. keep the bow into the seas with the sea anchor out over the bow, and row to meet the breaking waves
    N d. head directly into the beach by staying between the crests of the waves

1368: A fire in electrical equipment should be extinguished by using __________.

    N a. salt water
    N b. foam
    N c. low-velocity fog
    Y d. CO2

1462: When authorized to use chemical agents on an oil spill they would __________.

    N a. absorb the oil for easy removal
    N b. dissolve the oil in the water
    Y c. facilitate the removal of the pollutant from the water
    N d. sink the oil

1729: The purpose of the deck seal in an inert gas system is to prevent __________.

    Y a. flammable vapors from entering machinery space
    N b. flue gas escaping to atmosphere
    N c. inert gas escaping to atmosphere
    N d. air entering inert gas system

2001: The person in charge of a mobile offshore drilling unit must insure that __________.

    N a. each bilge pump is operated at least once a week
    N b. all personnel are provided with work vests
    N c. whistles and general alarm bells are tested once each day
    Y d. the date and hour of each fire drill is recorded in the log

2046: Your drafts are: FWD 5'-11", AFT 6'-11". From past experience, you know that the vessel will increase her draft 1 inch for every 7 tons loaded. There is rig water on board and 16 tons of deck cargo. How many more tons of cargo can be loaded and still maintain the same trim? (D037DG )

    N a. 8 tons
    N b. 12 tons
    N c. 10 tons
    Y d. 14 tons

2089: On a vessel carrying grades A, B, C or D cargoes, enclosed spaces where sources of vapor ignition are normally present shall NOT be segregated from cargo tanks by __________. (vessel constructed after 1970)

    N a. cofferdams
    Y b. galleys
    N c. pump rooms
    N d. tanks used to carry liquids having a flash point of 150°F or above

2301: If water is rising in the bilge of a survival craft, you should first __________.

    N a. abandon the survival craft
    N b. check for cracks in the hull
    N c. shift all personnel to the stern
    Y d. check the bilge drain plug

2307: Why does a centrifugal bilge pump require priming?

    N a. To lubricate shaft seals
    Y b. Lack of ability to lift water level to impellers
    N c. Head pressure must equal discharge pressure
    N d. To overcome resistance of water in the discharge line

2313: A hydraulic accumulator aboard a MODU is designed to __________.

    Y a. store fluid under pressure
    N b. act as a fluid reservoir
    N c. provide overpressure relief
    N d. replenish fluid to a system

2405: The heavy three-, four-, or six-sided length of pipe suspended from the swivel through the rotary table and connected to the topmost joint of drill pipe to turn the drill stem as the rotary table turns is called the __________.

    N a. swivel
    N b. bail
    Y c. kelly
    N d. cock

2422: What is the threshold limit value (TLV) for a product of PHTHALIC ANHYDRIDE?

    Y a. 1 ppm
    N b. 2 ppm
    N c. 3 ppm
    N d. 4 ppm

2554: How is "radio silence" imposed?

    Y a. By the On Scene Coordinator (OSC)
    N b. By the Coast Earth Station (CES) controlling the Distress communications on that frequency
    N c. It is imposed by the Public Correspondence Station (PCS) controlling the distress communications on that frequency or channel
    N d. It is imposed by the High Seas Service (HSS) controlling the distress communications on that frequency or channel

2599: Oil fires are best extinguished by __________.

    Y a. cutting off the supply of oxygen
    N b. removing the fuel
    N c. cooling below the ignition temperature
    N d. spraying with water

2613: What is required in addition to the heat, fuel, and oxygen of the fire triangle to have a fire?

    N a. Smoke
    N b. Electricity
    Y c. Chain reaction
    N d. Pressure

2732: According to the regulations, to prevent excessive pressure buildup in cargo tanks containing LFG, they are fitted with __________.

    N a. pressure vacuum relief valves
    N b. excess flow valves
    Y c. safety relief valves
    N d. flame screens

2846: A small passenger vessel engaging in international voyages must be dry docked at least once every __________.

    N a. 6 months
    Y b. 12 months
    N c. 36 months
    N d. 60 months

2957: Your vessel's drafts are: FWD 21'-09", AFT 23'-03"; and the KG is 20.0 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the angle of list if the center of gravity is shifted 1.9 feet off the centerline.

    N a. 9°
    N b. 12°
    N c. 15°
    Y d. 19°

3133: The stability which exists after the unintentional flooding of a compartment on a MODU is called __________.

    N a. intact stability
    N b. initial stability
    N c. immersion stability
    Y d. damage stability

3154: How many escape routes must normally exist from all general areas accessible to the passengers or where the crew may be quartered or normally employed? (small passenger vessel regulations)

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

3198: Starting motors, generators, and other spark producing devices should be mounted as high above the bilges as possible to __________.

    N a. keep them dry when the bilges are full of water
    N b. keep them cool when the vessel is underway
    N c. make them more accessible for repairs
    Y d. prevent accidental ignition of any gasoline vapors that may have accumulated in the bilges

3397: A jack-up 180 feet in length with the LCF at 120 feet AFO has a draft of 8 feet at the bow and 11 feet at the stern. What is the true mean draft (draft at the center of flotation)?

    N a. 8.0 feet
    N b. 9.0 feet
    Y c. 10.0 feet
    N d. 11.0 feet

3435: Small wooden hull passenger vessels, whose routes are limited to coastwise warm water routes on the high seas, must carry approved life floats or buoyant apparatus __________.

    N a. for all persons on board
    N b. for not less than 67% of all persons permitted on board
    Y c. for not less than 100% of all persons permitted on board
    N d. in place of ring life buoys

3507: The lightweight longitudinal moments for the DEEP DRILLER are __________.

    N a. 680,914 ft-long tons
    N b. 9,733 ft-long tons
    N c. -5,937 ft-long tons
    Y d. -6,716 ft-long tons

3560: How should the number "4" be pronounced when spoken on the radiotelephone?

    N a. QUAD-ROS-FOOR
    N b. NUM-ERL-FOUR
    N c. NUMB-ER-FOWER
    Y d. KAR-TAY-FOWER

3611: Each life jacket light that has a non-replaceable power source must be replaced __________.

    N a. every 6 months after initial installation
    N b. every 12 months after initial installation
    N c. every 24 months after initial installation
    Y d. on or before the expiration date of the power source

3966: In the illustration shown, the righting strap is shown as item number __________. (D014SA )

    N a. 8
    N b. 9
    N c. 12
    Y d. 16

4047: The DEEP DRILLER, loaded as shown in the Sample Load Form #4 (Drilling), discharges a non-liquid load of 275.8 long tons from a position 130 feet above the centerline. What is the improvement in KGT?

    N a. 0.68 foot
    N b. 0.99 foot
    Y c. 1.16 feet
    N d. 2.07 feet

4416: The color of the signal flare sent up by a submarine indicating that a torpedo has been fired in a training exercise is __________.

    N a. white
    N b. yellow
    N c. red
    Y d. green

4595: The COASTAL DRILLER, while drilling, has a total weight of 15,400 kips. The LCG is 120.00 feet AF0, and the TCG is -0.5 foot to port of the centerline. What is the starboard leg reaction?

    N a. 4,956 kips
    N b. 5,063 kips
    Y c. 5,104 kips
    N d. 5,233 kips

4663: The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). If the contents of the #7 drill water tank are discharged, what would be the new TCG?

    N a. -0.15 foot
    N b. 0.00 foot
    Y c. 0.15 foot
    N d. 0.29 foot

5177: The DEEP DRILLER departs a fresh water port at a draft of 20 feet. What will be the draft in sea water?

    N a. 19.0 feet
    N b. 19.3 feet
    Y c. 19.6 feet
    N d. 20.4 feet

5305: The COASTAL DRILLER, in ocean transit at a draft of 10 feet 6 inches with winds less than 70 knots, has a KGT of 50.6 feet and a KGL of 51.4 feet. The margin on the maximum allowable KG is __________.

    Y a. 13.6 feet
    N b. 14.4 feet
    N c. 40.0 feet
    N d. 65.0 feet

5561: What line receives the hardest service in the mooring system?

    N a. Guy wire
    N b. Joining pendant
    N c. Wildcat leader
    Y d. Anchor pendant

5655: When the air temperature is just below 32°F, snow FIRST adheres to __________.

    N a. surfaces near the waterline
    N b. vertical surfaces
    Y c. horizontal surfaces
    N d. leeward surfaces

6091: Due to the hazards involved with Halon extinguishers on a MODU, the size II extinguisher may only be used __________.

    Y a. outside
    N b. on class C fires
    N c. in an emergency
    N d. on class B fires

6274: You are fighting a class "B" fire with a portable dry chemical extinguisher. The discharge should be directed __________.

    N a. at the main body of the fire
    N b. to bank off a bulkhead onto the fire
    N c. over the top of the fire
    Y d. at the seat of the fire, starting at the near edge

7325: One method of reducing the length of radio transmissions without distorting the meaning of your words is by using __________.

    N a. slang
    N b. secret codes
    Y c. procedure words
    N d. analogies

7401: In evacuation from a MODU, an individual without the option of a survival craft or liferaft should enter the water on the leeward side, except when __________.

    N a. there is a rescue craft in the area
    N b. water temperature is below 40°F
    Y c. there is a severe list to the windward side of the MODU
    N d. a rigid survival craft is in the area

8173: When elevating the COASTAL DRILLER in 100 feet of water, the unit should be placed at an air gap of __________.

    Y a. 35 feet
    N b. 32 feet
    N c. 30 feet
    N d. 25 feet

8431: The International Oil Pollution Prevention (IOPP) Certificate required by MARPOL is issued to U.S. flag MODUs by the __________.

    N a. International Maritime Organization
    Y b. U.S. Coast Guard
    N c. American Bureau of Shipping
    N d. Environmental Protection Agency

9261: The retrievable subsea units that contain the pilot valves and regulators for operating the subsea blowout preventers are called __________.

    N a. accumulators
    Y b. control pods
    N c. consoles
    N d. shuttle controls

9507: With no environmental forces, the center of gravity of an inclined vessel is vertically aligned with the __________.

    N a. longitudinal centerline
    N b. center of flotation
    N c. original vertical centerline
    Y d. center of buoyancy

9561: Vertical moments are obtained by multiplying a vessel's weight and its __________.

    Y a. VCG or KG
    N b. LCB
    N c. LCG
    N d. TCG