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.


60: Your vessel rolls slowly and sluggishly. This indicates that the vessel __________.


86: On an inspection of your tankship you notice that there are no portable fire extinguishers in the pumproom. To comply with regulations, you __________.


107: What best describes for how long a gas-free test is good?


137: The officer responsible for the sanitary condition of the engineering department is the __________.

    N a. Master
    N b. Chief Mate
    Y c. Chief Engineer
    N d. First Assistant

160: A vessel is tender if cargo weight is __________.

    Y a. concentrated high and the double bottoms empty
    N b. concentrated low and the double bottoms empty
    N c. evenly distributed vertically with the double bottoms full
    N d. concentrated and with the double bottoms full

284: What is the correct interpretation of the flag hoist G, 4, 2, 1, first substitute.

    N a. G421G
    Y b. G4214
    N c. G421G421
    N d. G4211

410: The effect of free surface on initial stability depends upon __________.

    N a. the amount of liquid in the compartment
    Y b. the dimensions of the liquid surface and the vessel's displacement
    N c. only the length of the compartment
    N d. the vertical position of the liquid in the vessel

437: On small passenger vessels bunks installed in overnight passenger accommodation spaces __________.

    N a. must be no less than 74" long and 24" wide with 24" of clear space above
    N b. must not be located more than 3 high, fitted with a suitable aid to access bunks more than 5' above deck with suitable aids to access bunks more than 5' above deck
    N c. must be immediately adjacent to an aisle leading to a means of escape
    Y d. All of the above

561: The 12-foot low-velocity fog applicator __________.

    N a. has a spray pattern 12 feet in diameter
    N b. can be used in conjunction with both 1-1/2 inch and 2-1/2 inch all-purpose nozzles
    Y c. has a 90° bend at its discharge end
    N d. has a screw thread end which connects to the all-purpose nozzle

599: When starting CPR on a drowning victim, you should __________.

    N a. start chest compressions before the victim is removed from the water
    N b. drain water from the lungs before ventilating
    Y c. begin mouth-to-mouth ventilations as soon as possible
    N d. do not tilt the head back since it may cause vomiting

652: How does foam extinguish an oil fire?

    N a. By cooling the oil below the ignition temperature
    N b. By removing the fuel source from the fire
    Y c. By excluding the oxygen from the fire
    N d. By increasing the weight of the oil

744: You are using VHF channel 16 (156.8 MHz) or 2182 kHz. You need help but are not in danger. You should use the urgent signal __________.

    N a. "ASSISTANCE NEEDED"
    Y b. "PAN-PAN"
    N c. "MAYDAY"
    N d. "SECURITE"

856: Which statement about immersion suits is TRUE?

    N a. Immersion suits should be worn during routine work on deck to provide maximum protection.
    N b. After purchasing, the suit should be removed from its storage bag and hung on a hanger where readily accessible.
    Y c. Immersion suits must have a PFD light attached to the front shoulder area.
    N d. Small leaks or tears may be repaired using the repair kit packed with the suit.

1192: Which statement is TRUE concerning the oxygen indicator?

    N a. Exposure to flue gas has no effect on the instrument.
    N b. Only one level of the tested space need be sampled by the instrument.
    Y c. Prolonged exposure to CO2 can result in false readings.
    N d. The instrument can detect hydrogen gas.

1713: Line throwing equipment should NOT be operated __________.

    N a. during a rain storm
    Y b. in an explosive atmosphere
    N c. near a liferaft canister
    N d. by other than licensed officers

2073: If your rig is equipped with a SSB radio, what frequency would you use to initiate a distress call?

    N a. 1982 kHz
    N b. 2082 kHz
    Y c. 2182 kHz
    N d. 2282 kHz

2156: The flammable limits of gasoline are 1.3 to 7.6 percent volume of the air. You are testing a tank that contained gasoline by using a combustible gas indicator. Under testing, the tank sample registered 55 on the instrument's dial. What is the concentration of flammable gases?

    Y a. 0.7%
    N b. 4.1%
    N c. 5.5%
    N d. 55%

2408: If your asphalt barge has operated more than 12 months in saltwater in the 24 month period since it was last dry-docked, when is it required to be hauled out again?

    N a. 12 months since last dry-docking
    N b. 18 months since last dry-docking
    N c. 24 months since last dry-docking
    Y d. 36 months since last dry-docking

2526: 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-0069

    N a. Available GM 4.2 ft
    Y b. Available GM 3.9 ft
    N c. Available GM 3.7 ft
    N d. Available GM 3.5 ft

2563: The hoist line primarily used for lifting personnel on MODU cranes is called the __________.

    N a. personnel line
    Y b. whip line
    N c. main hoist line
    N d. pendant

2612: What is NOT listed as a synonym for crude oil in the Chemical Data Guide?

    N a. Rock oil
    N b. Mineral oil
    N c. Seneca oil
    Y d. Earth crude

2631: In MODU construction, beam brackets are triangular plates that join the deck beam to a __________.

    N a. bulkhead
    Y b. frame
    N c. stanchion
    N d. deck longitudinal

2677: 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-0075

    N a. 4.0 feet
    Y b. 5.6 feet
    N c. 6.0 feet
    N d. 6.8 feet

2751: The requirements for special welding procedures on a MODU must be contained in the __________.

    N a. vessel plans
    N b. Coast Guard file
    Y c. construction portfolio
    N d. construction plans

2953: When the height of the metacenter has the same value as the height of the center of gravity, the metacentric height is equal to __________.

    N a. the height of the metacenter
    N b. the height of the center of gravity
    N c. the same as half the height of the metacenter
    Y d. zero

3027: If the result of loading a MODU is an increase in the height of the center of gravity, there will always be an increase in the __________.

    N a. metacentric height
    N b. righting arm
    N c. righting moment
    Y d. vertical moments

3089: What is NOT a responsibility of the tankerman in charge of loading an unmanned tank barge?

    N a. Enforcement of smoking restrictions
    N b. Restricting vessels from coming alongside the barge
    Y c. Insuring that a combustible gas indicator is aboard
    N d. Protecting cargo hose with chafing gear

3143: The instructions for rescue boats and liferafts on an OSV must be approved by the __________.

    N a. lease operator
    N b. Minerals Management Service
    Y c. Coast Guard
    N d. person-in-charge of the unit

3158: Electric generators can be protected against overload __________.

    N a. with switches
    N b. with a governor on the engine
    Y c. with fuses or circuit breakers
    N d. by using heavy wire

3375: The DEEP DRILLER at a draft of 58.0 feet discharges 1,792.44 long tons of ballast. What is the new draft?

    N a. 40 feet
    Y b. 45 feet
    N c. 50 feet
    N d. 55 feet

3388: A carburetor is required to have a safety device called a(n) __________.

    N a. pressure release
    Y b. backfire flame arrestor
    N c. automatic shut off
    N d. flow valve

3462: A rigid lifesaving device only designed for survivors to hold on to while in the water is known as a __________.

    N a. liferaft
    N b. life float
    N c. life preserver
    Y d. buoyant apparatus

3588: For the purpose of training and drills, if reasonable and practicable, rescue boats on an OSV must be launched with their assigned crew __________.

    N a. once a week
    Y b. once a month
    N c. once a year
    N d. twice a year

3697: In storm conditions, when slacking the leeward mooring lines of the DEEP DRILLER, maintain in the chain locker at least __________.

    N a. 500 feet
    N b. 350 feet
    Y c. 200 feet
    N d. 100 feet

3764: What are symptom(s) of a ruptured appendix?

    N a. Dilated pupils and shallow breathing
    N b. Diarrhea and frequent urination
    Y c. Muscle tenseness in almost the entire abdomen
    N d. Extreme sweating and reddening skin

3841: What is the change in the vertical moments for the DEEP DRILLER if 2.0 feet of ballast is transferred from a full ballast tank 3P to an empty ballast tank 10P?

    N a. 43 ft-tons increase
    N b. 69 ft-tons decrease
    Y c. 556 ft-tons decrease
    N d. 5,575 ft-tons decrease

3958: If there's a fire aboard your vessel, you should FIRST __________.

    N a. notify the Coast Guard
    N b. have passengers put on life preservers
    Y c. sound the alarm
    N d. cut off air supply to the fire

4041: 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 keel, 40 feet forward of amidships, and 30 feet to port of the centerline. What is the new TCG?

    N a. -0.26 foot
    N b. -0.46 foot
    Y c. 0.46 foot
    N d. 0.61 foot

4053: 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 keel, 40 feet forward of amidships, and 30 feet to port of the centerline. What is the resulting trim angle?

    N a. 3.49 degrees to the stern
    N b. 4.69 degrees to the stern
    Y c. 5.18 degrees to the stern
    N d. 5.68 degrees to the stern

4063: In the DEEP DRILLER, the longitudinal free surface correction (FSCL) is obtained from the total of the longitudinal free surface moments (FSML) by __________.

    N a. adding the LCG
    N b. subtracting the LCG
    N c. multiplying by displacement
    Y d. dividing by displacement

4377: The elevating system of the COASTAL DRILLER is normally limited to __________.

    N a. 14,158 kips
    Y b. 14,400 kips
    N c. 17,280 kips
    N d. 21,297 kips

4475: While the COASTAL DRILLER is elevated, the out-of-level alarm indicates that hull inclination exceeds 0.3°. What should you do?

    N a. Raise the high corner.
    N b. Raise the low corner.
    N c. Raise unit to proper air gap and inspect for damage.
    Y d. Confirm operation of out-of-level alarm.

4523: The capacity of the COASTAL DRILLER preload tanks is __________.

    N a. 21,297.0 kips
    N b. 11,777.2 kips
    N c. 9,753.7 kips
    Y d. 8,708.0 kips

4611: On the COASTAL DRILLER, the level of water in each of two pump bilge pits is monitored by __________.

    N a. visual sight gages
    N b. low and high level alarms
    Y c. hydrostatic alarm switches
    N d. OSS units (overflow sequence selector units)

5042: What is the meaning of the signal SA T1035 RQ when sent by the International code of Signals?

    N a. The longitude is 10°35'.
    N b. I am altering course to 103.5°T.
    Y c. Can you proceed at 1035 local time?
    N d. Is the latitude 10°35'?

5421: The COASTAL DRILLER, loaded as shown in the Sample Load Form #3 (Drilling), discharges the bulk in Bulk Tanks 1 and 2. What is the new TCG?

    N a. -1.61 feet
    N b. -1.58 feet
    N c. 0.43 feet
    Y d. 0.99 feet

5508: Your drafts are: FWD 17'-09", AFT 18'-03". What is the KM based on the tables in the blue pages of the Stability Data Reference Book?

    N a. 25.7 feet
    N b. 26.0 feet
    Y c. 26.2 feet
    N d. 26.4 feet

6251: Explosive and flammable gasses are most likely to be encountered on a MODU __________.

    N a. at any location
    Y b. on the drill floor and liquid mud handling areas
    N c. in bulk storage tanks
    N d. in machinery spaces

6903: The Master or person in charge of a MODU is required to submit a casualty report of an intentional grounding under what condition?

    N a. At the owner's discretion
    Y b. If it creates a hazard to navigation
    N c. If the grounding lasts over 48 hours
    N d. Under any condition

6917: Injuries resulting in loss of life or incapacitation, aboard vessels, must be reported to the __________.

    N a. Minerals Management Service
    N b. American Petroleum Institute
    Y c. U.S. Coast Guard
    N d. International Association of Drilling Contractors

7607: The difference between the height of the metacenter and the metacentric height is known as __________.

    N a. righting arm
    N b. metacentric radius
    N c. height of the center of buoyancy
    Y d. height of the center of gravity

7648: Buoyant apparatus are required to be fitted or equipped with all of the following equipment EXCEPT __________. (small passenger vessel regulations)

    N a. life lines
    Y b. paddles
    N c. water lights
    N d. painters

7841: In a combination chain and wire rope mooring system, the anchor chain is deployed at the anchor end of the line to __________.

    N a. increase fatigue life of the system
    N b. reduce the time to retrieve the line
    Y c. increase the holding power
    N d. reduce the catenary

8331: When H2S is burned (flared) on a MODU, what can you expect to occur?

    N a. All of the H2S will be converted to SO2.
    N b. All of the H2S will be converted to hydrogen and free sulfur.
    Y c. Only 80% of the H2S will be converted to SO2 or free sulfur.
    N d. The H2S not converted will not be dangerous.

8443: The requirement to carry an Oil Record Book does not apply to a MODU that __________.

    Y a. is not equipped to discharge overboard any oil or oily mixture
    N b. is on an international voyage to a country that is a party to MARPOL
    N c. has an International Oil Pollution Prevention Certificate
    N d. has an oily water separator of sufficient capacity for the oil wastes generated

9001: The difference between the starboard and port drafts caused by shifting a weight transversely is __________.

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

9125: Automatic fire dampers in ventilation systems are operated by a __________.

    N a. remote operated valve
    Y b. fusible link
    N c. CO2 system pressure switch
    N d. heat or smoke detector

9193: Drinking salt water will __________.

    N a. be safe if mixed with fresh water
    N b. prevent seasickness
    Y c. dehydrate you
    N d. protect against heat cramps

9505: With no environmental forces acting on the vessel, 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. metacenter

9563: The KG of a vessel is found by dividing the displacement into the __________.

    N a. height of the center of gravity of the vessel
    Y b. sum of the vertical moments of the vessel
    N c. sum of the free surface moments of the vessel
    N d. sum of the longitudinal moments of the vessel