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.


67: The explosive range of petroleum vapors mixed with air is __________.


74: Outlets in gasoline fuel lines are __________.


133: You have abandoned ship and are in charge of a liferaft. How much water per day should you permit each occupant to drink after the first 24 hours?


148: First aid treatment for small cuts and open wounds is to __________.

    N a. lay the patient down and cover the wound when the bleeding stops
    Y b. stop the bleeding, clean, medicate, and cover the wound
    N c. apply an ice pack to the wound and cover it when the bleeding stops
    N d. apply a hot towel to purge the wound, then medicate and cover it

281: The gross weight of a fully charged CO2 bottle in a fixed CO2 system is 220 lbs. When the bottle is empty it weighs 120 lbs. What is the minimum acceptable gross weight of the CO2 bottle before it should be recharged by the manufacturer?

    N a. 200 lbs
    N b. 205 lbs
    Y c. 210 lbs
    N d. 220 lbs

536: A fully loaded motor-propelled lifeboat must be capable of attaining a speed of at least __________.

    N a. 3 knots in smooth water
    Y b. 6 knots in smooth water
    N c. 3 knots in rough water
    N d. 6 knots in rough water

757: Which tank vessel must carry a signaling lamp?

    N a. A 1,000 GT tanker on a coastwise voyage
    Y b. A 200 GT tanker on an international voyage
    N c. A 300 GT tanker on an intercoastal voyage
    N d. All of the above

802: A portable dry chemical fire extinguisher discharges by __________.

    N a. gravity when the extinguisher is turned upside down
    Y b. pressure from a small CO2 cartridge on the extinguisher
    N c. air pressure from the hand pump attached to the extinguisher
    N d. pressure from the reaction when water is mixed with the chemical

944: The lifesaving signal indicating "You are seen - Assistance will be given as soon as possible" is the __________.

    N a. vertical motion of white flags
    N b. vertical motion of a white light or flare
    N c. firing of a green star signal
    Y d. None of the above

993: If your vessel has a GM of one foot and a breadth of 50 feet, what will be your full rolling period?

    N a. 11 seconds
    N b. 15 seconds
    N c. 20 seconds
    Y d. 22 seconds

1253: If there are no alternatives for escape, what is the maximum height that the survival craft could be dropped into the water?

    N a. 2 ft.
    N b. 6 ft.
    Y c. 10 ft.
    N d. 14 ft.

1276: The lights on the outside of the canopy on an inflatable liferaft operate __________.

    N a. by turning the globe clockwise
    N b. by a switch at each light
    N c. by a light sensor
    Y d. automatically when the raft is inflated

1329: The sprinkler system of an enclosed lifeboat is used to __________.

    Y a. cool the craft in a fire
    N b. cool the engine
    N c. spray oil on the sea to calm it
    N d. spray personnel during a fire

1361: What is the minimum diameter allowed for bilge piping on small passenger vessels which are more than 65 feet in length?

    N a. 1"
    Y b. 1-1/2"
    N c. 2"
    N d. 2-1/2"

1512: Where are the draft marks required to be displayed on a ship?

    N a. Deep tanks
    N b. Voids
    N c. Midships near the waterline
    Y d. Area of water line near stem and stern

1544: While operating your oceangoing vessel you must keep a record of any discharge or disposal of garbage. These entries shall be made __________.

    N a. before the end of the voyage
    N b. before arriving at your next port
    N c. no later than 24 hours after disposal of the garbage
    Y d. at the time the garbage was disposed

1754: A large metallic device, mounted directly in the piping (usually located at the dock near the point where the vapor hose is attached), designed to prevent the passage of a rapidly moving flame through the piping is called a __________.

    N a. flame arrestor
    N b. flame screen
    Y c. detonation arrestor
    N d. detonation blocker

1817: Offshore drilling units that carry twelve or more persons on a voyage of more than three days must have a __________.

    N a. recreation room
    N b. radar room
    Y c. hospital space
    N d. navigation space

1906: Your vessel displaces 930 tons and measures 156'L by 38'B. What is the reduction in GM due to free surface if the fish hold (46'L by 28'B by 8'D) is filled with 1.5 feet of water? (Each foot of water weighs 36.8 tons)

    N a. 2.16 feet
    Y b. 2.44 feet
    N c. 2.75 feet
    N d. 2.99 feet

2013: What is the minimum number of lifeboats which MUST be carried on a mobile offshore drilling unit that is allowed to carry more than 30 persons?

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

2086: A partially full tank causes a virtual rise in the height of the __________.

    N a. metacenter
    N b. center of buoyancy
    N c. center of flotation
    Y d. center of gravity

2325: 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-0058

    N a. 395 tons
    N b. 530 tons
    N c. 750 tons
    Y d. 990 tons

2392: Your vessel's drafts are: FWD 13'-11", AFT 16'-05". How much more cargo can be loaded to have the vessel down to the freeboard draft? (Use the information in Section 1, the blue pages, of the Stability Data Reference Book)

    N a. 7109 tons
    N b. 7316 tons
    N c. 7432 tons
    Y d. 7779 tons

2512: Which of the following product(s) would be classified as grade E?

    N a. Gasoline
    Y b. Bunker C
    N c. Kerosene
    N d. All of the above

2522: What best describes benzene?

    N a. Clear colorless liquid with an acrid odor
    Y b. Clear colorless liquid with an aromatic odor
    N c. Brownish liquid, odorless
    N d. Brownish liquid, with an acrid odor

2607: The tendency of a grade "B" product to vaporize is indicated by its __________.

    Y a. flash point
    N b. convection index
    N c. flammable range
    N d. ignition temperature

2663: Lighter longitudinal stiffening frames on the MODU side plating are called __________.

    Y a. stringers
    N b. side frames
    N c. side stiffeners
    N d. intercostals

2720: To determine the pressure and temperature limitations under which LFG is required to be transported on a barge, you should look at the __________.

    Y a. Certificate of Inspection
    N b. loading order
    N c. rules and regulations for tank vessels
    N d. tankerman's document

2755: What repair or modification to a MODU would most likely require consulting the construction portfolio?

    N a. Replacing watertight doors in quarters
    N b. Repair of drill pipe racks on deck
    Y c. Repair of leg-to-can connection on a jack-up
    N d. Replacing a service pump foundation

2776: The lubber's line of a magnetic compass __________.

    N a. always shows true north direction
    Y b. indicates the vessel's heading
    N c. is always parallel to the vessel's transom
    N d. is located on the compass card

2836: The remote control for a fixed fire extinguishing system should be __________. (Uninspected Vessel Regulations)

    Y a. painted red and labeled
    N b. concealed from the crew
    N c. protected by plexiglas
    N d. padlocked

2988: No person whose license has been revoked shall be issued another license except upon __________.

    Y a. approval of the Commandant
    N b. taking a new examination
    N c. approval of the Officer-in-Charge, Marine Inspection
    N d. approval of an administrative law judge

3163: A continual worsening of the list or trim of any floating MODU indicates __________.

    N a. negative GM
    Y b. progressive flooding
    N c. structural failure
    N d. an immediate need to counterflood

3356: The tank barge on which you are preparing to load petroleum is required to have on board one B-II fire extinguisher. What does NOT meet this requirement?

    N a. 2-1/2 gallon foam
    Y b. 5 gallon water (stored pressure)
    N c. 10 pound dry chemical
    N d. 15 pound CO2

3398: Before starting any diesel or gasoline engine, which of the following must be checked?

    Y a. Oil level
    N b. Flow of cooling water
    N c. Exhaust discharge
    N d. All of the above

3412: Your vessel's existing draft is FWD 24'-08", AFT 25'-04". Using the Guidance Manual for Loading M.V. GRAND HAVEN, determine the new draft if 180 long tons are loaded in No. 23 hatch.

    N a. FWD 24'-04 2/3", AFT 25'-10 3/4"
    Y b. FWD 24'-06 1/2", AFT 25'-08 2/3"
    N c. FWD 24'-08 1/4", AFT 25'-00 2/3"
    N d. FWD 24'-10 1/4", AFT 25'-00 1/4"

3504: The SS AMERICAN MARINER is ready to load the cargo listed. There is already 6280 tons of cargo on board with a KG of 25.5 feet. Use the white pages of the Stability Data Reference Book to determine the final KG of all the cargo after loading is completed. ST-0135

    N a. KG 25.3 feet
    N b. KG 25.7 feet
    Y c. KG 26.0 feet
    N d. KG 27.1 feet

3700: Sign(s) of respiratory arrest requiring artificial respiration is(are) __________.

    N a. vomiting
    Y b. blue color and lack of breathing
    N c. irregular breathing
    N d. unconsciousness

3821: What is the change in transverse moments for the DEEP DRILLER if 103.48 long tons of ballast is discharged from a full ballast tank 1P?

    N a. 10,944 foot-tons decrease
    Y b. 7,761 foot-tons increase
    N c. 1,797 foot-tons increase
    N d. 155 foot-tons decrease

4073: The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). What are the new TM (transverse moments) if the entire contents of Salt Water Ballast Tanks 1P and 1S are discharged?

    N a. -3,436 ft-tons
    Y b. 3,446 ft-tons
    N c. 3,594 ft-tons
    N d. 22,682 ft-tons

4120: Which of the following would be of immediate concern after discovering a large fire in the ship's galley?

    N a. An adjacent storeroom, containing spare parts
    Y b. A storeroom directly above, containing combustible fluids
    N c. An adjacent storeroom, containing mattresses and linen
    N d. An adjacent storeroom, marked "Stewards Stores"

4170: The color of the signal flares sent up by a submarine surfacing from periscope depth is __________.

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

4198: A tanker loads at a terminal within the tropical zone. She will enter the summer zone six days after departing the loading port. She will burn off 45 tons/day and daily water consumption is 8 tons. How many tons may she load over that allowed by her summer load line?

    N a. 270
    N b. 278
    N c. 291
    Y d. 318

4493: The COASTAL DRILLER, with a draft of 10 feet 6 inches, has a displacement of __________.

    Y a. 13,662 kips
    N b. 13,553 kips
    N c. 13,011 kips
    N d. 12,252 kips

5786: The SS AMERICAN MARINER is ready to sail with the load shown. Use the white pages of The Stability Data Reference Book to determine the available GM. ST-0185

    N a. Available GM 2.8 ft
    N b. Available GM 3.2 ft
    N c. Available GM 3.5 ft
    Y d. Available GM 3.8 ft

5946: The SS AMERICAN MARINER has drafts of: FWD 25'-11", AFT 26'-11". Use the white pages of the Stability Data Reference Book to determine the drafts if you ballast the forepeak with 83 tons of seawater.

    N a. FWD 26'-05.6", AFT 26'-07.5"
    N b. FWD 26'-06.2", AFT 26'-06.9"
    Y c. FWD 26'-06.8", AFT 26'-06.3"
    N d. FWD 26'-07.7", AFT 26'-05.4"

6525: On the cargo manifest, the total weight of an empty cargo box is the __________.

    Y a. tare weight
    N b. net weight
    N c. gross weight
    N d. cargo weight

6583: When weight-testing a davit-launched liferaft on a mobile offshore drilling unit, the test weight must be equivalent to the weight of the raft, its required equipment, and __________.

    N a. 90% of the allowed capacity of persons for the raft
    Y b. 100% of the allowed capacity of the persons for the raft
    N c. 110% of the allowed capacity of the persons for the raft
    N d. 120% of the allowed capacity of the persons for the raft

6735: On a MODU, each EPIRB or SART must be tested at least once __________.

    N a. each week
    N b. every two weeks
    Y c. each month
    N d. every two months

6856: Fire dampers prevent the spread of fire by __________.

    N a. conduction
    Y b. convection
    N c. radiation
    N d. direct contact

7053: When a patient is suspected of having appendicitis, the pain should be relieved by __________.

    Y a. keeping an ice bag over the appendix area
    N b. giving the patient a laxative
    N c. giving the patient morphine sulfate
    N d. giving the patient aspirin with a glass of water

7077: Where there are multiple accident victims, which type of injury should be the first to receive emergency treatment?

    Y a. Severe shock
    N b. Eye injuries
    N c. Burns
    N d. Major multiple fractures

7412: In the event of a fire, the doors to a stair tower must be closed to prevent the spread of fire by __________.

    N a. ventilation
    N b. radiation
    Y c. convection
    N d. conduction

8557: Each fire pump on a MODU must have a pressure gauge located at __________.

    Y a. the pump discharge
    N b. the manifold connection
    N c. each fire station discharge
    N d. the pump station

8583: After cranes have been installed on offshore drilling units the hooks, hook block, slings, rib and other rigging must be load tested. This test must be performed once each __________.

    N a. 12 months
    N b. 24 months
    N c. 36 months
    Y d. 48 months

8683: With no environmental forces on the DEEP DRILLER, the average of the forward drafts is 61.0 feet, and the average of the aft drafts is 59.0 feet. KGL is 51.13 feet. What is the value of LCG?

    N a. -0.12 foot
    N b. 0.12 foot
    N c. 2.11 feet
    Y d. 2.35 feet

8971: The change in weight (measured in tons) which causes a draft change of one inch is __________.

    N a. MT1 inch
    N b. ML1 inch
    N c. MH1 inch
    Y d. TPI

9093: In addition to weighing the cartridge, which other maintenance is required for a cartridge-operated dry chemical extinguisher?

    N a. Weigh the powder in the canister.
    N b. Discharge a small amount to see that it works.
    Y c. Check the hose and nozzle for clogs.
    N d. Check the external pressure gage.

9317: Which statement is CORRECT with respect to inserting an airway tube?

    Y a. Only a trained person should attempt to insert an airway tube.
    N b. A size 2 airway tube is the correct size for an adult.
    N c. The airway tube will not damage the victim's throat.
    N d. Inserting the airway tube will prevent vomiting.

9702: Which of the following is/are NOT required on Ro-Ro vessels, regarding spaces that are "specially suitable for vehicles"?

    N a. The spaces shall be fitted with an approved fire or smoke detecting system.
    Y b. The spaces shall have designated smoking areas.
    N c. The spaces shall be fitted with an approved fixed fire extinguishing system.
    N d. All of the above