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.


35: Which statement is TRUE of a gasoline spill?


41: Before using a fixed CO2 system to fight an engine room fire, you must __________.


202: The lifeline which is part of a fireman's outfit must be __________.


226: How many low-velocity spray applicators are required on the weather decks of a tankship?

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

360: The greatest effect on stability occurs from loose liquids flowing __________.

    N a. from side to side in the tanks of the vessel
    N b. from fore to aft in the tanks of a vessel
    Y c. in and out of a vessel that is holed in a wing tank
    N d. in and out of a vessel that is holed in a peak tank

377: The regulations governing the frequencies of the bridge-to-bridge radiotelephone are issued by the __________.

    N a. Department of Transportation
    Y b. Federal Communications Commission
    N c. U.S. Coast Guard
    N d. Department of Defense

402: To lubricate the swivel or remove corrosion from a fire hose coupling, you should use __________.

    N a. glycerine
    N b. graphite
    N c. kerosene
    Y d. fresh water and soap

481: How should the letter "D" be pronounced when spoken on the radiotelephone?

    N a. DUKE
    N b. DA VID
    N c. DOG
    Y d. DELL TAH

647: Under the "Vessel Bridge-to-Bridge Radiotelephone Act", the maximum power of all transmitters used shall be not more than __________.

    Y a. 25 watts
    N b. 50 watts
    N c. 75 watts
    N d. 100 watts

685: The operator of each vessel engaged in a vessel-to-vessel oil transfer operation must keep a signed copy of the declaration of inspection for __________.

    N a. 10 days
    Y b. 1 month
    N c. 6 months
    N d. 1 year

1216: After launching, an inflatable raft should be kept dry inside by __________.

    N a. opening the automatic drain plugs
    N b. draining the water pockets
    N c. using the electric bilge pump
    Y d. using the bailers and cellulose sponge

1300: Blocks and falls used as lifeboat gear must be designed with a minimum safety factor of __________.

    N a. 4, based on the breaking strength
    N b. 5, based on the maximum allowable stress
    Y c. 6, based on the maximum working load
    N d. 8, based on the normal working load

1398: The size of fire hydrant hose connections on a cargo vessel must be either 1-1/2 inches or __________.

    N a. 1 inch
    Y b. 2-1/2 inches
    N c. 3 inches
    N d. 3-1/2 inches

1620: One disadvantage of using regular dry chemical (sodium bicarbonate) in firefighting is that __________.

    N a. it can break down under high heat and emit noxious fumes
    N b. it will decompose under prolonged storage and lose its effectiveness
    Y c. fire has been known to flash back over the surface of an oil fire
    N d. it is ineffective in fighting fires in high-voltage electrical equipment

1708: A chemical additive to LPG gives it a characteristic __________.

    Y a. odor
    N b. color
    N c. pressure
    N d. density

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

2048: Your drafts are: FWD 6'-02", AFT 6'-08". From past experience, you know that the vessel will increase her draft 1 inch for every 6 tons loaded. There is rig water on board and 23 tons of deck cargo. How many more tons of cargo can be loaded and still maintain the same trim? (D037DG )

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

2106: In special cases, the Commandant of the Coast Guard may permit cargo piping to pass through machinery spaces, provided that the only cargo carried through such piping is(are) __________.

    N a. grades A or B
    N b. grades D or E
    Y c. grade E
    N d. LFG

2157: On offshore drilling units, each EPIRB or SART must be tested once every __________.

    N a. day
    N b. week
    Y c. month
    N d. year

2172: Your vessel displaces 560 tons. The existing deck cargo has a center of gravity of 4.5 feet above the deck and weighs 34 tons. If you load 10 tons of ground tackle with an estimated center of gravity of 2.8 feet above the deck, what is the final height of the CG of the deck cargo?

    Y a. 4.11 feet
    N b. 4.36 feet
    N c. 4.57 feet
    N d. 4.78 feet

2239: You can slow or stop a sailing vessel by __________.

    N a. put the wind off the beam and sheet in
    N b. put the wind off the stern and ease all sheets
    Y c. bring the vessel's head into the wind and let the sails luff
    N d. raise the centerboard when running before the wind

2260: You are making a heavy lift with the jumbo boom. Your vessel displaces 18,000 T. The 50-ton weight is on the pier, and its center is 75 feet to starboard of the centerline. The head of the boom is 112 feet above the base line, and the center of gravity of the lift when stowed on deck will be 56 feet above the base line. As the jumbo boom takes the strain, the ship lists 3.5°. What is the GM when the cargo is stowed?

    N a. 3.19 feet
    N b. 3.24 feet
    N c. 3.40 feet
    Y d. 3.56 feet

2284: The flammable limits for crude oil are __________.

    N a. 1% to 6% mixture in air
    N b. 20% to 40% mixture in air
    N c. 0% to 1% mixture in air
    Y d. unavailable

2366: What type of vent is required on a barge transporting No. 6 fuel oil?

    Y a. Gooseneck vents fitted with flame screens
    N b. Pressure-vacuum
    N c. Branch vent line
    N d. Vent header

2368: 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-0061

    N a. FWD 22'-02", AFT 25'-08"
    N b. FWD 21'-07", AFT 26'-03"
    Y c. FWD 20'-11", AFT 26'-09"
    N d. FWD 20'-09", AFT 26'-11"

2517: When may a personnel net be used to bring heavy equipment aboard an offshore drilling unit?

    N a. Only when the seas are calm
    N b. Only during rough weather
    N c. Only when there are no personnel in the net
    Y d. Never

2562: How many B-II fire extinguishers must be in the machinery space of a 175-foot long fishing vessel propelled by engines with 4000 brake horsepower?

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

2630: According to the Chemical Data Guide, what is NOT a recommended extinguishing agent for an ethylene cyanohydrin fire?

    N a. Alcohol foam
    N b. CO2
    N c. Dry chemical
    Y d. Water fog

2665: You are in the North Sea, which is a special area listed in ANNEX V of MARPOL. How many miles from land must you be to throw broken plywood dunnage over the side?

    N a. 6 nm
    N b. 12 nm
    N c. 25 nm
    Y d. Must be retained aboard

2699: Your vessel displaces 10,000 tons and has a KG of 22.6 feet. What will be the length of the remaining righting arm at an angle of inclination of 45° if the center of gravity shifts 2.0 feet transversely? (Use the information in Section 1, the blue pages, of the Stability Data Reference Book)

    N a. 3.8 feet
    Y b. 2.7 feet
    N c. 1.9 feet
    N d. 0.9 foot

2853: What can be used to measure the percentage of oxygen inside a confined space?

    N a. Flame safety lamp
    N b. Combustible gas indicator
    Y c. Oxygen indicator
    N d. H2S meter

2859: For emergency communications, vessels operating on oceans, coastwise, or Great Lakes routes, on runs of more than 30 minutes shall carry in a portable watertight container at or near the operating station __________. (small passenger vessel regulations)

    N a. six orange hand smoke distress signals
    N b. six red hand flare distress signals
    N c. one 3-cell flashlight
    Y d. six red hand flare distress signals and six orange hand smoke distress signals

2876: The minimum number of portable B-II fire extinguishers required in the machinery space of a 199 GT motor towing vessel of 8000 B.H.P. is __________. (Uninspected Vessel Regulations)

    N a. 3
    Y b. 6
    N c. 8
    N d. 9

2878: To prevent the spread of fire by conduction you should __________.

    N a. remove combustibles from direct exposure
    Y b. cool the bulkheads around the fire
    N c. close all openings to the area
    N d. shut off all electrical power

2950: You have loaded a deck cargo, and the vessel has assumed a 7° list due to negative GM. Your salt water drafts are: FWD 16'-00", AFT 16'-02". If you then load 1050 tons of cargo in the lower holds (VCG 11.0 feet) and take on 600 tons of bunkers (VCG 2.5 feet), what is the final GM? (Use the reference material in Section 1, the blue pages, of the Stability Data Reference Book)

    N a. 2.8 feet
    N b. 2.5 feet
    Y c. 1.9 feet
    N d. 1.5 feet

2964: Using the information in Section 1, the blue pages, of the Stability Data Reference Book, determine the danger angle for permanent list if the KG is 22.2 feet and the drafts are: FWD 23'-06", AFT 24'-03".

    Y a. 26°
    N b. 30°
    N c. 34°
    N d. 53°

3110: When a vessel is not in compliance with its Certificate of Inspection, which certificate may be issued to allow its movement to a repair facility? (small passenger vessel regulations)

    N a. Change of Employment
    Y b. Permit to Proceed
    N c. Application for Inspection
    N d. Temporary Certificate of Inspection

3117: For a MODU with longitudinal inclination, an increase in GML causes __________.

    N a. list to stabilize at an angle of loll
    N b. trim to stabilize at an angle of loll
    N c. trim to increase
    Y d. trim to decrease

3176: The tops of vents from gasoline tanks should terminate __________.

    Y a. in open air
    N b. inside cabins
    N c. in machinery space
    N d. underwater

3321: A semisubmersible displacing 18,000 long tons has an LCG 2 feet forward of amidships. Bulk, weighing 400 long tons, is discharged from P-tanks located 50.8 feet aft of amidships. What is the new LCG?

    N a. 0.8 foot forward of amidships
    N b. 1.20 feet forward of amidships
    N c. 3.11 feet forward of amidships
    Y d. 3.20 feet forward of amidships

3339: What is acceptable flame screening?

    N a. A fitted single brass screen of 10 x 10 mesh
    Y b. A fitted stainless steel screen of 30 x 30 mesh
    N c. A fitted single stainless steel screen of 15 x 15 mesh
    N d. Two fitted brass screens of 10 x 15 mesh spaced 1/2 inch apart

3346: An inflatable liferaft is thrown into the water from a sinking vessel. Which action occurs automatically after the painter trips the CO2 bottles to inflate the raft?

    Y a. The sea anchor is deployed.
    N b. The floor inflates.
    N c. If upside down, the raft will right itself.
    N d. The painter detaches from the raft.

3411: The SS AMERICAN MARINER has the liquid loading shown. Use the white pages of The Stability Data Reference Book to determine the KG of the liquid load. ST-0127

    Y a. 7.9 feet
    N b. 7.3 feet
    N c. 6.4 feet
    N d. 4.3 feet

3424: The SS AMERICAN MARINER is loaded with the cargo shown. Use the white pages of The Stability Data Reference Book to determine the amount of liquid loading required in the double bottom tanks to meet a one compartment standard. ST-0128

    N a. 1920 tons
    N b. 1280 tons
    Y c. 895 tons
    N d. 720 tons

3445: The DEEP DRILLER, at a draft of 55 feet, has a KGT of 53.05 feet and TCG of 0.5 foot to starboard. What is the list angle?

    N a. 2.0°Starboard
    Y b. 2.9°Starboard
    N c. 3.2°Starboard
    N d. 3.5° starboard

3960: A rigid lifesaving device designed to support survivors in the water is a __________.

    N a. rigid liferaft
    Y b. life float
    N c. inflatable liferaft
    N d. survival capsule

4025: When is direct voice communication allowed in place of an internal communication system on a towing vessel?

    N a. When the vessel is less than 20 meters in length
    N b. When the vessel is ruled to be an "existing vessel"
    Y c. When the controls at the operation station are within 3 meters (10 feet) of the engine room access
    N d. When it is easier to shout than use a radio or telephone

4110: As Master of an inspected small passenger vessel, you have a question regarding a proposed modification to a watertight bulkhead. In which subchapter of title 46 of the Code of Federal Regulations would you find the answer?

    N a. Subchapter W
    Y b. Subchapter T
    N c. Subchapter I
    N d. Subchapter E

4238: You are the operator of a 296 GRT uninspected towing vessel. Its construction was contracted for after August 27, 2003. In addition to the hand portable fire extinguishers, how much other fire extinguishing equipment are you required to have on board? (Uninspected Vessel Regulations)

    N a. Either an approved B-V semi-portable fire-extinguishing system or a fixed fire-extinguishing system
    Y b. Both an approved B-V semi-portable fire-extinguishing system and a fixed fire-extinguishing system
    N c. An approved water mist fire protection system and a fixed CO2 fire-extinguishing system
    N d. Both an approved B-V semi-portable fire-extinguishing system and an approved water mist fire protection system

4263: The rotary of the COASTAL DRILLER is located 38 feet aft of transom and 6 feet to starboard of the centerline. With the changes to lightweight shown in the Operating Manual, the maximum allowable hook load is __________.

    N a. 1000 kips
    N b. 445 kips
    Y c. 424 kips
    N d. 346 kips

4268: Which statement about immersion suits is TRUE?

    Y a. Prior to abandonment, the suit allows body movement such as walking, climbing a ladder and picking up small objects.
    N b. The immersion suit seals in body heat and provides protection against hypothermia for weeks.
    N c. The suit is flameproof and provides protection to the wearer while swimming through burning oil.
    N d. The wearer of the suit is severely restricted and requires twice the time to climb a ladder than without the suit.

4658: You are scheduled to load 3900 tons of cargo, 45 tons of crew effects and stores and 259 tons of fuel. Use the blue pages of the Stability Data Reference Book to determine the vessel's mean draft in fresh water.

    N a. 18'-06"
    N b. 18'-02"
    Y c. 17'-11"
    N d. 17'-08"

6093: On offshore drilling units where foam systems are installed on the heliport, the system must be able to discharge continuously for at least __________.

    Y a. 5 minutes
    N b. 6 minutes
    N c. 8 minutes
    N d. 10 minutes

6581: If a fixed foam firefighting system on a MODU is not of the premix type, a sample of the foam liquid must be tested by __________.

    N a. a Coast Guard inspection officer
    N b. the safety man aboard the unit
    N c. the designated person in charge of the unit
    Y d. the manufacturer or his authorized representative

8747: If a severe storm threatens the COASTAL DRILLER while elevated, the setback in the derrick should be lowered and placed in the pipe rack. Its weight should be accounted for as __________.

    Y a. variable loads
    N b. drilling loads
    N c. environmental loads
    N d. fixed weight

8845: A semisubmersible at a draft of 19 feet 9 inches arrives on location planning to deploy eight mooring lines. Each anchor weighs 15 long tons and each mooring line consists of 3,000 feet of 3-inch chain (89.6 lbs/ft). If no ballast corrections are made, what is the expected draft if the average TPI is 60?

    N a. 17 feet 9 inches
    Y b. 18 feet 3 inches
    N c. 18 feet 9 inches
    N d. 21 feet 3 inches

9361: The principal personnel hazard unique to Halon extinguishers is __________.

    N a. displacement of oxygen
    N b. skin irritation
    Y c. inhaling toxic vapors
    N d. eye irritation

9445: The difference between the height of the metacenter and the height of the center of gravity is known as the __________.

    Y a. metacentric height
    N b. height of the righting arm
    N c. fore and aft perpendicular
    N d. height of the center of buoyancy

9564: Automatic fire dampers in ventilation systems are operated by use of __________.

    N a. remotely operated valves
    N b. C02 system pressure switches
    Y c. fusible links
    N d. heat or smoke detectors

9571: The correction to KG for longitudinal free surface effects for a vessel can be found by dividing the vessel's displacement into the __________.

    N a. transverse free surface correction for the vessel
    N b. sum of the vertical moments of the vessel
    Y c. sum of the longitudinal free surface moments of the vessel
    N d. longitudinal centerline of the vessel