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.


42: The advantages of using an inert gas system on a tank vessel is that it provides __________.


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


654: Which of the following statements about transmitting distress messages by radiotelephone is INCORRECT?


1144: Aboard a 60 foot long small passenger vessel (other than a ferry) which is certificated to carry 33 persons, the minimum capacity required per bilge pump is __________.

    Y a. 10 gallons per minute
    N b. 19 gallons per minute
    N c. 38 gallons per minute
    N d. 50 gallons per minute

1177: 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-0030

    N a. 1.20 feet
    N b. 1.64 feet
    Y c. 2.26 feet
    N d. 3.00 feet

1342: If there's a fire aboard your vessel, you should FIRST __________.

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

1647: Electrical wiring on all "T-Boats" must be __________.

    N a. concealed to prevent mechanical damage
    N b. concealed so the boat can be maintained more easily
    Y c. protected from the weather
    N d. in an accessible place behind the ceiling

1661: What is the maximum number of crew members that may be berthed in one room aboard your cargo vessel?

    N a. Two
    Y b. Four
    N c. Six
    N d. Eight

1775: You are inspecting the nonmetallic oil transfer hoses on the vessel you operate. The maximum allowable pressure of the hose is 70 psi. Your inspection confirms the hose did not burst, bulge, leak or abnormally distort under the required static liquid pressure of __________.

    N a. 70 psi
    Y b. 105 psi
    N c. 140 psi
    N d. 210 psi

1890: Spaces containing batteries require good ventilation because __________.

    N a. ventilation avoids CO2 build up
    N b. ventilation supplies extra oxygen for charging the battery
    Y c. ventilation avoids flammable gas accumulation
    N d. less electrolyte is required to maintain the batteries' charge

1949: What is meant by "CES"?

    N a. Coast Earth Satellite
    Y b. Coast Earth Station
    N c. Central Equatorial Station
    N d. Coastal Equivalent Station

1949: What is meant by "CES"?

    N a. Coast Earth Satellite
    Y b. Coast Earth Station
    N c. Central Equatorial Station
    N d. Coastal Equivalent Station

1985: Each emergency generator on a mobile offshore drilling unit, when tested, must be run under a full load for at least __________.

    N a. one hour
    Y b. two hours
    N c. ten hours
    N d. four hours

2353: Which documents are required by GMDSS for vessels on international voyages (other than the Great Lakes)?

    N a. A copy of the IMO master plan of shore-based facilities
    N b. Station logs
    N c. 47 CFR Part 80 FCC Rules and Regulations
    Y d. All of the above

2423: A large valve, usually installed above the ram preventers, that forms a seal in the annular space between the pipe and wellbore or, if no pipe is present, on the wellbore itself is called the __________.

    Y a. annular blowout preventer
    N b. annulus
    N c. accumulator
    N d. automatic choke

2514: Your vessel's drafts are: FWD 14'-11", AFT 16'-01"; and the KG is 23.2 feet. What is the righting moment when the vessel is inclined to 15°? (Use the reference material in Section 1, the blue pages, of the Stability Data Reference Book)

    N a. 5,800 foot-tons
    N b. 7,600 foot-tons
    Y c. 9,272 foot-tons
    N d. 11,200 foot-tons

2579: What is the most appropriate action for a GMDSS Radio Operator to take in a distress situation where immediate help is needed, but the vessel is not sinking nor needs to be abandoned?

    N a. Switch off EPIRB and SART manually.
    Y b. Transmit Distress call by MF/HF, VHF or INMARSAT.
    N c. Notify the RCC (Rescue Coordination Center) through VHF FM on Channel 13.
    N d. Transmit Distress call by activating the radiotelegraph automatic alarm signal.

2916: What is the minimum number of B-II hand portable fire extinguishers required on board a 105 GT towboat with a 7500 B.H.P. plant (including the machinery space)? (Uninspected Vessel Regulations)

    N a. 6
    N b. 8
    Y c. 9
    N d. 11

3081: A person who observes an individual fall overboard from an OSV should __________.

    N a. immediately jump into the water to assist the individual
    Y b. call for help and keep the individual in sight
    N c. run to the radio room to send an emergency message
    N d. go to the control room for the distress flares

3099: Which type of power may a towing vessel use to drive the cargo pumps of a tank barge?

    N a. Only air
    N b. Only steam
    N c. Air or steam only
    Y d. Steam, air, or electricity

3137: With damaged floating vessels, the most important consideration is the preservation of __________.

    N a. bilge pumping capacity
    Y b. reserve buoyancy
    N c. level attitude
    N d. instability

3209: In the illustration shown, the floating sheath knife is indicated as item number __________. (D014SA )

    Y a. 2
    N b. 8
    N c. 13
    N d. 16

3323: A semisubmersible, with a TCG of 0.5 foot to port, displaces 20,000 long tons. Bulk, weighing 400 long tons, is loaded in P-tanks located 50 feet starboard to the centerline. What is the new TCG?

    Y a. 0.49 foot starboard of centerline
    N b. 0.51 foot starboard of centerline
    N c. 0.99 foot starboard of centerline
    N d. 1.49 feet starboard of centerline

3436: 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

3599: What should you do with your emergency position indicating radio beacon if you are in a lifeboat during storm conditions?

    Y a. Bring it inside the liferaft and leave it on.
    N b. Bring it inside the liferaft and turn it off until the storm passes.
    N c. Leave it outside the liferaft and leave it on.
    N d. Leave it outside the liferaft and turn it off.

3653: When a vessel signals her distress by means of a gun or other explosive signal, the firing should be at intervals of approximately __________.

    N a. 10 minutes
    Y b. 1 minute
    N c. 1 hour
    N d. 3 minutes

3717: During the passage of a severe storm, the DEEP DRILLER is at survival draft. Strong winds are blowing from the starboard. A careful load form calculation determined that, although the unit is level, the TCG is 2.0 feet to starboard. The value of the wind heeling moment is __________.

    N a. 40,402 ft-long tons
    Y b. 32,099 ft-long tons
    N c. 21,343 ft-long tons
    N d. 19,982 ft-long tons

3865: What is the minimum required number of ring life buoys on an OSV certified for ocean service?

    N a. 4
    Y b. 8
    N c. 12
    N d. 16

3905: On the DEEP DRILLER, when using the starboard #2 ballast pump to provide water to the main deck from the sea, it is necessary to open valves __________.

    Y a. 37, 35, 36, 45
    N b. 37, 36, 46, 47
    N c. 38, 47
    N d. 38, 47, 45, 46

4079: Your cargo vessel's Certification of Inspection expires 30 April 2002. One of your inflatable liferafts was last serviced in January 2002. The raft must be reinspected no later than __________.

    Y a. January 2003
    N b. June 2003
    N c. April 2004
    N d. January 2007

4139: Rotation of the steering wheel on the navigation bridge initiates oil pressure being applied to the steering gear rams by __________.

    N a. regulating the oil flow with the six-way valve
    N b. moving the automatic differential valve
    N c. moving the follow up indicator which regulates the six-way valve
    Y d. varying the angle of a tilting box or eccentricity of a floating ring

4221: Considering the changes to lightweight shown in section 5 of the COASTAL DRILLER Manual, the maximum allowable combination of hook, rotary, and setback load for the COASTAL DRILLER with the rotary located 34 feet aft of the transom and two feet to port of the centerline is __________.

    N a. 1000 kips
    N b. 875 kips
    Y c. 854 kips
    N d. 755 kips

4223: On the COASTAL DRILLER, the maximum aft extension of the cantilever places the rotary __________.

    N a. 68.33 feet aft of the transom
    Y b. 40.00 feet aft of the transom
    N c. 38.33 feet aft of the transom
    N d. 28.33 feet aft of the transom

4279: Your vessel is greater than 100 GRT and carries more than 12 passengers. In addition to the licensed deck officer in the pilothouse, there should be on watch an additional crew member __________.

    N a. on lookout on the fore deck
    N b. on the bridge wing
    N c. always in the pilothouse
    Y d. in or near the pilothouse

4295: The COASTAL DRILLER, in transit with winds expected to exceed 70 knots, must lower the legs so that the can tips are __________.

    Y a. 60.5 feet below the hull
    N b. 48.5 feet below the hull
    N c. 11.6 feet below the hull
    N d. 1.2 feet below the hull

4325: Lowering the hull of the COASTAL DRILLER and refloating should be done in favorable weather conditions with wave heights not more than __________.

    N a. three feet
    N b. four feet
    Y c. five feet
    N d. six feet

4555: The COASTAL DRILLER at a draft of 10.5 feet, transfers a portion of the on board liquids from full drill water tank #23 to empty drill water tank #24. What is the change in the free surface correction?

    N a. 0.69 foot
    Y b. 0.44 foot
    N c. 0.34 foot
    N d. 0.22 foot

4575: What precaution should be taken when testing a line throwing gun?

    N a. Wear asbestos gloves.
    N b. Fire it at an angle of approximately 90 degrees to the horizon.
    Y c. Never remove the line from the rocket.
    N d. All of the above

4587: 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 feet to port of the centerline. What is the bow leg reaction?

    N a. 4,737 kips
    N b. 4,916 kips
    Y c. 5,063 kips
    N d. 5,145 kips

4616: You are scheduled to load 4700 tons of cargo, 45 tons of crew effects and stores and 323 tons of fuel. Use the blue pages of the Stability Data Reference Book to determine the vessel's mean draft in salt water.

    Y a. 19'-00"
    N b. 19'-04"
    N c. 19'-09"
    N d. 20'-01"

4718: The Sailing Plan, required by vessels participating in AMVER, must be sent __________.

    N a. prior to departure
    Y b. within a few hours before or after departure
    N c. within 12 hours of departure
    N d. within 24 hours of departure

5065: Under what condition are you allowed to depart from the rules of the road?

    Y a. To avoid immediate danger
    N b. When authorized by the rig superintendent
    N c. To comply with an operator's requirement
    N d. Under no conditions

5536: On a vessel of 7000 tons displacement, a tank 35 ft. long, 30 ft. wide and 46 ft. deep is half filled with liquid cargo (S.G. 0.923) while the vessel is floating in saltwater (S.G. 1.026). What is the free surface constant for this tank?

    N a. 3240
    N b. 2731
    N c. 2390
    Y d. 2024

5574: 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-0181

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

5752: 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-0184

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

6617: On offshore drilling units, sleeping spaces for the regular personnel employed on board may not berth more than __________.

    N a. two persons
    N b. three persons
    Y c. four persons
    N d. five persons

6667: On a MODU, the locker or space containing the self-contained breathing apparatus must __________.

    N a. be located in close proximity to the main control station
    N b. be equipped with battery powered emergency lighting
    Y c. be marked "SELF-CONTAINED BREATHING APPARATUS"
    N d. All of the above

6673: Each emergency light on a MODU must be marked with __________.

    Y a. the letter "E"
    N b. an arrow pointing to the nearest exit
    N c. a no-smoking symbol
    N d. the word "DANGER"

6747: How many people on board a MODU must be trained in the use of the fireman's outfit?

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

6871: Lifeboat winches on mobile offshore drilling units are required to be inspected and an entry made in the logbook. How often should this entry be made?

    Y a. Every 3 months
    N b. Every 6 months
    N c. Every year
    N d. Only after conducting a boat drill

7377: A semisubmersible rig under tow should be ballasted down if __________.

    Y a. motion begins to be excessive
    N b. water begins to break over the pontoons
    N c. period of roll exceeds 12 seconds
    N d. forward progress is halted by head wind

8263: When removing the cap from a sounding tube on a MODU, the sound of air escaping indicates the tank __________.

    N a. is full
    Y b. may be partially flooded
    N c. level has dropped
    N d. is completely flooded

8707: The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). If port valves 24 and 2 are mistakenly opened, the change in inclination will be increasing trim by the __________.

    Y a. bow with port list
    N b. bow
    N c. stern
    N d. stern with starboard list

8707: The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). If port valves 24 and 2 are mistakenly opened, the change in inclination will be increasing trim by the __________.

    Y a. bow with port list
    N b. bow
    N c. stern
    N d. stern with starboard list

8737: The DEEP DRILLER is loaded as shown in the Sample Load Form #4 (Drilling). What would be the weight of the mud in pit #4 if the mud weight was changed from 16 to 14 pounds per gallon?

    N a. No change
    Y b. 93.34 long tons
    N c. 121.91 long tons
    N d. 135.13 long tons

8761: The full period of motion of the DEEP DRILLER while tripping is 7 seconds and the maximum pitch angle as seen on the inclinometers is 4°. From the standpoint of critical motion, the motion is __________.

    N a. unsatisfactory, place setback in the pipe racks
    N b. satisfactory, continue tripping
    Y c. unsatisfactory, deballast to survival draft
    N d. satisfactory, but prepare to hang off

8793: While drilling loaded as shown in Sample Load Form #4 (Drilling), the DEEP DRILLER suffers a sudden unexpected inclination to port and aft. Strong winds and high waves are from the starboard bow. Among the possible causes, you should consider __________.

    N a. failure of mooring lines 1 or 2
    Y b. failure of mooring lines 3 or 4
    N c. leak in ballast tank #9P
    N d. ballast tanks equalizing into tank 10P

9243: The DEEP DRILLER, while loaded as shown in the Sample Load #5, discharges 275.8 long tons. The resulting trim by the stern is 3 feet and list to port is 2 feet. What is the draft at the port aft draft mark?

    N a. 43 feet 6 inches
    Y b. 45 feet 6 inches
    N c. 48 feet 0 inches
    N d. 49 feet 6 inches

9382: Fire in an engine compartment is best extinguished with carbon dioxide gas (CO2) and by __________.

    Y a. completely closing the compartment
    N b. closing the compartment except for the ventilators
    N c. leaving the compartment open to the air
    N d. increasing the air flow to the compartment by blowers

9432: The color of the signal flare sent up by a submarine indicating that a torpedo has been fired in a training exercise is __________.

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