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.


102: You are underway when a fire breaks out in the forward part of your vessel. If possible, you should __________.


292: High-velocity fog __________.


339: If a firefighting situation calls for low-velocity fog you would __________.


535: What is NOT required to be contained in the oil transfer procedures?

    N a. A line diagram of the vessel's oil transfer piping
    N b. The number of persons on duty during oil transfer operations
    N c. Any special procedures for topping off tanks
    Y d. The location and capacity of all fuel and cargo tanks on the vessel

764: Which word is an international distress signal when transmitted by radiotelephone?

    N a. Securite
    Y b. Mayday
    N c. Breaker
    N d. Pan

912: A "fifteen-pound" CO2 extinguisher is so called because __________.

    Y a. there are fifteen pounds of CO2 in the container
    N b. the container, when full, weighs fifteen pounds
    N c. the pressure at the discharge nozzle is l5 psi
    N d. the empty container weighs fifteen pounds

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

1068: The "flammable limits" of an atmosphere are the __________.

    N a. two temperatures between which an atmosphere will self ignite
    Y b. upper and lower percentage of vapor concentrations in an atmosphere which will burn if an ignition source is present
    N c. upper and lower pressures between which an atmosphere will not burn
    N d. two temperatures between which an atmosphere will burn if an ignition source is present

1324: A hydrostatic release mechanism for a liferaft __________.

    N a. must be wet before it will release
    N b. should be kept in a watertight cover except in an emergency
    N c. will inflate the raft in its cradle if operated manually
    Y d. must be submerged to a certain depth to release automatically

1570: Which is a mandatory section of the shipboard Oil Pollution Emergency Plan?

    Y a. Reporting requirements
    N b. Removal equipment list
    N c. Planned exercises
    N d. List of individuals required to respond

1605: What entry would NOT be shown on the V line of an AMVER report?

    N a. MD
    Y b. MT
    N c. PA
    N d. NURSE

1627: The canvas covering of fire hose is called the __________.

    N a. casing
    N b. outer hose
    N c. line cover
    Y d. jacket

1659: You have berthed in a port area with other tank vessels. What signal is displayed by a vessel to indicate it is transferring flammable or combustible liquid cargo?

    N a. A flashing yellow light
    Y b. A red light visible all around the horizon
    N c. A green light visible all around the horizon
    N d. An illuminated red and yellow caution flag

1733: The last 1.0 meter (3.3 feet) of vapor piping before the vessel vapor connection must be painted __________.

    Y a. red/yellow/red
    N b. yellow/red/yellow
    N c. international orange
    N d. hi-visibility yellow

1734: Which procedure should be followed when individuals are rescued in cold climates and suffer from hypothermia?

    N a. Give them brandy or other alcoholic stimulation to promote a return to an acceptable body temperature.
    Y b. Move them to a warm room to gradually raise their body temperature.
    N c. Keep them moving to stimulate circulation to raise their body temperature.
    N d. Warm them under an electric blanket to rapidly regain normal body temperature.

1763: You are operating a liftboat. When jacking down and a leg becomes stuck on the bottom, you should __________.

    N a. raise the free legs all the way
    N b. use the engines to rotate about the leg that is stuck
    Y c. jack the barge down part way to pull the leg free
    N d. submerge the barge completely to give added pull

1927: On offshore drilling units, the minimum number of inclined ladders which must be fitted between each weather deck is __________.

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

1947: INTERNATIONAL AND INLAND Your 18-meter vessel is under sail at night displaying sidelights, stern light, and a red light over a green light at the masthead. If you start the auxiliary engine and engage the propeller, you must_______.

    N a. turn your stern light off
    N b. show two green lights instead of a red and green at the masthead
    N c. display a white light in sufficient time to prevent collision
    Y d. turn off the red over green, turn on the white masthead light

2186: Which statement is TRUE concerning cargo hose on tank barges?

    N a. Cargo hose must be able to withstand the shut-off head plus the static head of the cargo pump.
    N b. Cargo hose must be able to withstand the static head of the cargo pump but no less than 100 psi.
    N c. Cargo hose must be able to withstand the shut-off head less the static head of the cargo pump but no less than 100 psi.
    Y d. Cargo hose must be able to withstand at least 150 psi.

2285: When retrieving the survival craft, the helmsman should instruct the crewman to __________.

    N a. check the fuel level
    N b. open the doors
    N c. take the life preservers off
    Y d. check that hooks are fully locked in place

2311: What causes cavitation in a centrifugal pump?

    Y a. Vapor pockets in the flow stream
    N b. Rough impeller surfaces
    N c. Worn wearing rings
    N d. Heavy fluid in the flow stream

2395: A negative metacentric height __________.

    Y a. should always be immediately corrected
    N b. will always cause a vessel to capsize
    N c. always results from off-center weights
    N d. All of the above are correct

2797: A semisubmersible with a positive GM, and TCG located starboard of the centerline, inclines to an angle of __________.

    N a. heel
    N b. trim
    Y c. list
    N d. loll

2915: A MODU lists and trims about the __________.

    N a. center of gravity
    N b. center of buoyancy
    Y c. center of flotation
    N d. centroid of the underwater volume

2977: A slow and easy motion of a MODU in a seaway is an indication of a __________.

    Y a. small GM
    N b. low center of gravity
    N c. stiff vessel
    N d. large GZ

3064: Your sailing drafts are: FWD 18'-03", AFT 19'-07" and the GM is 4.3 feet. What will be the angle of list if #2 starboard double bottom (capacity 78 tons, VCG 2.7 feet, and 24.5 feet off the centerline) is filled with saltwater? (Use the data in Section 1, the blue pages, of the Stability Data Reference Book)

    Y a. 3°
    N b. 5°
    N c. 7°
    N d. 9°

3184: The center of buoyancy and the metacenter are in the line of action of the buoyant force __________.

    N a. only when there is positive stability
    N b. only when there is negative stability
    N c. only when there is neutral stability
    Y d. at all times

3305: The height of the transverse metacenter for a MODU is 62.44 feet. The height of the center of gravity is 56.10 feet, and the transverse free surface correction is 1.21 feet. What is the value of the metacentric height corrected for transverse free surface effects?

    Y a. 5.13 feet
    N b. 6.34 feet
    N c. 8.76 feet
    N d. 12.10 feet

3369: Several vessels are at an anchorage. You wish to communicate with the vessel bearing 046°T from you but do not know the vessels call letters. Which flag hoist should NOT be used to establish communications?

    N a. CS
    Y b. RQ A046
    N c. VF
    N d. YQ3 A046

3383: The DEEP DRILLER, at a mean draft of 45 feet, has a three-foot trim by the stern and a two-foot list to port. What is the draft at the starboard forward draft mark?

    Y a. 42.5 feet
    N b. 44.5 feet
    N c. 45.5 feet
    N d. 47.5 feet

3600: How should the number "3" be pronounced when spoken on the radiotelephone?

    Y a. TAY-RAH-TREE
    N b. BEES-SOH-THREE
    N c. NUM-ERL-THREE
    N d. TRIC-THREE

3678: When giving mouth-to-mouth rescue breathing to an adult, you should breathe at the rate of how many breaths per minute?

    N a. 4
    N b. 8
    Y c. 12
    N d. 20

3860: Lifejackets should be stowed in __________.

    N a. the forepeaks
    N b. the pumproom
    Y c. readily accessible spaces
    N d. locked watertight containers

4140: In an electro-hydraulic steering system, rudder movement is maintained in close synchronization with the steering wheel position by means of the __________.

    N a. trick wheel
    Y b. follow-up control
    N c. six-way valve
    N d. Rapson slide

4213: While in ocean transit, the COASTAL DRILLER has a roll period of four seconds. What would be the largest angle each side of vertical that does not exceed the design limit of the legs?

    N a. 6.3 degrees
    N b. 5.0 degrees
    N c. 3.5 degrees
    Y d. 2.0 degrees

4231: A tanker loads at a terminal within the tropical zone. She will enter the summer zone five days after departing the loading port. She will burn off about 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. 225
    N b. 235
    N c. 245
    Y d. 265

4333: The COASTAL DRILLER is experiencing a single amplitude roll angle of 2 degrees and a roll period of 10 seconds. What is the maximum recommended water depth for elevating?

    N a. 50 feet
    N b. 100 feet
    Y c. 150 feet
    N d. 200 feet

4363: Scouring is the result of __________.

    Y a. interruption of the normal current flow by the footing
    N b. elevating in mud-slide zones
    N c. penetrating rapidly through a hard crust into weaker soils
    N d. extracting legs from soils with high cohesion

4517: The longitudinal location of the center of flotation for the COASTAL DRILLER has a value of __________.

    N a. 207.33 feet AF0
    N b. 160.33 feet AF0
    Y c. 119.44 feet AF0
    N d. 38.33 feet AF0

4541: What is the weight in drill water tank #1 for the COASTAL DRILLER, if the sounding in the tank is 8 feet 2 inches?

    N a. 202.16 kips
    Y b. 204.60 kips
    N c. 206.87 kips
    N d. 209.34 kips

4546: Fire dampers prevent the spread of fire by __________.

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

4667: The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). If the contents of #6 and #7 drill water tanks are discharged, what would be the new height of the longitudinal metacenter?

    N a. 249.47 feet
    N b. 250.16 feet
    Y c. 252.92 feet
    N d. 253.90 feet

4847: The rated operating time of a self-contained breathing device may be reduced in actual use because of __________.

    N a. pressure differences in the atmosphere
    N b. the length of the hose attached to the facepiece
    Y c. the physical exertion of the person wearing the device
    N d. spaces containing poisonous vapors

5341: For stronger leg support when the COASTAL DRILLER is elevated, locate a set of horizontal leg braces as near as possible to the __________.

    Y a. center of each lower hull guide
    N b. center of each upper hull guide
    N c. top of the jack house
    N d. bottom of the hull

5855: A mat-type drilling unit tows more slowly than a jack-up unit due to __________.

    Y a. the drag of the mat
    N b. its deeper draft
    N c. its tubular legs
    N d. the design of the bow

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"

6007: On offshore drilling units, each hand-held portable fire extinguisher, semi-portable fire extinguisher, and fixed fire extinguisher must be tested and inspected at least once every __________.

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

6133: What equipment is included in the fireman's outfit?

    N a. Chemical protection face shield
    N b. Approved work vest
    Y c. Self contained breathing apparatus
    N d. Marlinspike

6213: When patching holes in the hull of a MODU, pillows, bedding, and other soft materials can be used as __________.

    N a. caulking
    Y b. gaskets
    N c. strongbacks
    N d. wedges

6567: On offshore drilling units, the number of industrial personnel permitted to be on board during drilling operations is found on the __________.

    N a. Classification Certificate
    N b. Safety of Life at Sea Certificate
    Y c. U.S. Coast Guard Certificate of Inspection
    N d. Owner's Operation Manual

6613: What class of bulkhead is required around the galley on a MODU?

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

7075: Where there are multiple accident victims, which injuries should be the FIRST to receive emergency treatment?

    N a. Major multiple fractures
    N b. Eye injuries
    N c. Back injuries with spinal-cord damage
    Y d. Airway and breathing difficulties

7093: Normal mouth temperature is __________.

    N a. 96.4°F
    N b. 97.5°F
    Y c. 98.6°F
    N d. 99.7°F

7641: In small-angle stability, when external forces exist, the buoyant force is assumed to act vertically upwards through the center of buoyancy and through the __________.

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

8123: To effectively use the crossover system on the DEEP DRILLER to pump from the low side using a high side ballast pump, transverse inclinations should not exceed __________.

    N a. 8°
    N b. 6°
    N c. 4°
    Y d. 2°

8151: Laying down drill pipe from the derrick of a semisubmersible on location reduces the __________.

    Y a. natural roll period
    N b. metacentric height
    N c. waterplane area
    N d. righting moment

8313: The worst atmospheric condition for dispersion of H2S is __________.

    N a. heavy rain
    N b. gusty winds with rain
    Y c. nearly calm, clear nights or early morning
    N d. full sun with high winds

8517: While preparing for a storm when elevated, the total weight of the COASTAL DRILLER is 14,150 kips. LM are 1,712,150 ft-kips, and TM are -9,905 ft-kips. The port leg reaction is __________.

    N a. 4,536 kips
    N b. 4,716 kips
    N c. 4,824 kips
    Y d. 4,890 kips

9021: Aboard a vessel, dividing the sum of the longitudinal moments by the total weight yields the vessel's __________.

    N a. inclining moments
    N b. righting moments
    N c. vertical moments
    Y d. longitudinal position of the center of gravity

9481: The difference between the initial trim and the trim after loading is known as __________.

    N a. trim
    Y b. change of trim
    N c. final trim
    N d. change of draft