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.


30: Transverse stability calculations require the use of __________.


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


347: The danger of a charged hose left unattended on deck with the nozzle open is __________.


372: 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-0005

    N a. 189 tons
    N b. 174 tons
    Y c. 158 tons
    N d. No loading required

381: What is the meaning of the signal "G0325"?

    N a. The distance is 325 miles.
    Y b. The longitude is 3°25'.
    N c. The course is 325°.
    N d. Change course to 325°.

446: The number of fire axes required to be carried on a cargo vessel of 14,000 GT and on an international voyage is __________.

    N a. 4
    N b. 6
    Y c. 8
    N d. 12

448: Treatment of frostbite includes __________.

    N a. rubbing affected area with ice or snow
    N b. rubbing affected area briskly to restore circulation
    N c. wrapping area tightly in warm cloths
    Y d. warming exposed parts rapidly

735: You are fueling your vessel when you notice oil in the water around your vessel. You should immediately stop fueling and __________.

    N a. begin cleanup operations
    Y b. notify the U. S. Coast Guard
    N c. leave the area
    N d. notify the Corps of Engineers

941: 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-0019

    N a. 0.96 foot
    Y b. 1.45 feet
    N c. 1.96 feet
    N d. 2.96 feet

1016: What is the maximum length of time that distress flares are approved for?

    N a. 1 and 1/2 years
    N b. 2 years
    Y c. 3 and 1/2 years
    N d. 5 years

1155: When picking up a lifeboat at sea with way on the ship, the sea painter should be secured __________.

    Y a. well forward in the lifeboat
    N b. about amidships in the lifeboat
    N c. well aft in the lifeboat
    N d. only after the falls have been attached

1291: The SS AMERICAN MARINER has the following drafts: FWD 09'-00", AFT 15'-11.5". Upon completion of loading and bunkering the items listed will be on board. Use the white pages of The Stability Data Reference Book to determine the minimum GM required to meet a one compartment standard. ST-0033

    Y a. 1.82 feet
    N b. 1.96 feet
    N c. 2.05 feet
    N d. 2.17 feet

1395: After you have thrown the liferaft and stowage container into the water, you inflate the liferaft by __________.

    Y a. pulling on the painter line
    N b. forcing open the container which operates the CO2
    N c. hitting the hydrostatic release
    N d. using the hand pump provided

1535: Limit switches __________.

    N a. control the descent rate of a lifeboat
    N b. control the ascent rate of a lifeboat
    Y c. cut off power to the winch when the lifeboat nears the final stowed position
    N d. cut off power to the winch when the lifeboat reaches the davit bumpers

1566: CO2 extinguishes a fire by __________.

    N a. cooling
    Y b. smothering
    N c. chemical action
    N d. All of the above

1575: Foam extinguishes a fire by __________.

    Y a. smothering the burning material
    N b. chemical combination with burning material
    N c. absorbing the burning material
    N d. organic destruction of the burning material

1847: An offshore drilling unit must be equipped with a first aid kit approved by the __________.

    N a. Coast Guard
    N b. American Bureau of Shipping
    N c. Minerals Management Service
    Y d. Mine Safety and Health Administration

1900: The accumulation of dangerous fumes generated by the storage batteries is best prevented by __________.

    N a. covering the batteries in a nonconducting, solid enclosure
    N b. mounting the batteries in a position as high as possible
    Y c. natural or mechanical ventilation
    N d. securing the batteries to vibration reducing mounting brackets

1948: You have 600 tons of below deck tonnage. There is no liquid mud aboard. If you have 150 tons of cargo above deck with a VCG above the deck of 2.8 feet, what is the maximum allowed VCG of the remainder of the deck cargo that is permitted? (See illustration D036DG, stability letter for M.V. Hudson) (D036DG )

    N a. 1.96 feet
    N b. 2.25 feet
    Y c. 3.20 feet
    N d. 3.55 feet

1964: When crossing a bar in rough weather, you should enter on a(n) __________.

    N a. tidal bore
    N b. ebbing current
    Y c. flood current
    N d. All of the above

2105: If a davit-launched liferaft aboard a MODU cannot be launched because of damage to the davit, you should __________.

    N a. inflate the liferaft on deck
    Y b. roll the liferaft over the side
    N c. go to another liferaft station
    N d. get a saw and cut the liferaft free

2240: What is classified as a combustible liquid?

    N a. Acetaldehyde
    N b. Ethyl alcohol
    N c. Carbon tetrachloride
    Y d. Tetraethylene glycol

2316: The flammable limits for motor gasoline are __________.

    N a. 5.3% to 7% mixture in air
    N b. 0.9% to 5.9% mixture in air
    Y c. 1.4% to 7.6% mixture in air
    N d. 2.5% to 12.8% mixture in air

2487: The wire ropes of the riser tensioning system are attached to the __________.

    Y a. outer barrel of the telescoping joint
    N b. inner barrel of the telescoping joint
    N c. marine riser connector
    N d. ball joint

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

2989: When would it NOT be necessary to immediately notify the U.S. Coast Guard? (small passenger vessel regulations)

    N a. Loss of life
    N b. Major damage affecting the seaworthiness of a vessel
    Y c. Damage amounting to $2,000
    N d. Injury to a person which requires medical treatment beyond first aid

3046: How long is the Certificate of Inspection issued to a 50 gross ton, passenger carrying vessel which is 60 feet (18 meters) in length valid? (small passenger vessel regulations)

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

3056: The service use of pyrotechnic distress signals measured from the date of manufacture shall be limited to a period of __________.

    N a. 24 months
    N b. 36 months
    Y c. 42 months
    N d. 60 months

3104: An emergency check-off list is required on vessels carrying six or fewer passengers for hire. The list must contain information on all of the following EXCEPT __________. (Uninspected Vessel Regulations)

    N a. precautions for rough weather
    Y b. actions required in the event of accident
    N c. procedures for man overboard emergencies
    N d. emergency procedures for fire at sea

3162: All life jackets and life buoys shall be marked with the vessel's name in letters at least __________. (small passenger vessel regulations)

    N a. 1/2 inch high
    N b. 1 inch high
    Y c. Height not specified
    N d. 1-1/2 inches high

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

3449: How many ring life buoys should a 700 foot cargo vessel, not subject to SOLAS, navigating the Great Lakes carry?

    N a. 12
    Y b. 14
    N c. 18
    N d. 24

3516: Drinking salt water will __________.

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

3520: How should the number "5" be pronounced when spoken on the radiotelephone?

    N a. FIVE-ER
    N b. NEW-MARL-FIVE
    N c. NUM-ERL-FIVE
    Y d. PAN-TAH-FIVE

3641: Signaling devices required on inflatable liferafts include a(n) __________.

    N a. Very pistol
    Y b. orange smoke signal
    N c. air horn
    N d. lantern

3799: With no alternative but to jump from an OSV, the correct posture should include __________.

    Y a. holding down the lifejacket against the chest with one arm, crossing the other, covering the mouth and nose with a hand, and keeping the feet together
    N b. knees bent and held close to the body with both arms around legs
    N c. body straight and arms held tightly at the sides for a feet first entry into the water
    N d. both hands holding the lifejacket below the chin with knees bent and legs crossed

3848: Each personal flotation device light on an OSV that has a non-replacement power source must be replaced __________.

    N a. every six months after initial installation
    N b. every 12 months after initial installation
    N c. every 24 months after initial installation
    Y d. on or before the expiration date of the power source

4111: The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballasting to Survival). What is the metacentric height corrected for longitudinal free surface effects if 100.76 long tons of ballast are added to Ballast Tank #8S to replace the discharge of all bulk materials?

    N a. 6.46 feet
    N b. 7.09 feet
    Y c. 7.72 feet
    N d. 8.39 feet

4112: A fire is discovered in the forepeak of a vessel at sea. The wind is from ahead at 35 knots. You should __________.

    N a. remain on course and hold speed
    N b. remain on course but slack the speed
    N c. change course to put the wind on either beam and increase speed
    Y d. change course and put the stern to the wind

4210: You are loading in a port subject to the summer load line mark and bound for a port subject to the winter load line mark. You will enter the winter zone after steaming four days. You will consume 35 tons of fuel, water, and stores per day. The hydrometer reading at the loading pier is 1.0083, and the average TPI is 65. What is the minimum freeboard required at the start of the voyage? (Get Table Data)

    Y a. 74 inches
    N b. 78 inches
    N c. 80 inches
    N d. 86 inches

4215: A mat-type jack-up drilling unit is the best selection for __________.

    Y a. soft mud bottoms
    N b. uneven bottoms
    N c. deep water
    N d. hard bottoms

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

4361: On the COASTAL DRILLER, hook load includes the weight of the __________.

    N a. setback load
    N b. rotary load
    N c. conductor tension
    Y d. drill string

4435: The COASTAL DRILLER has sufficient reserve stability to overcome damage due to flooding of any one watertight compartment in winds to __________.

    N a. 36 knots
    Y b. 50 knots
    N c. 70 knots
    N d. 100 knots

4813: The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). What is the value of KML if the entire contents of drill water tanks 6 and 7 are discharged?

    N a. 253.90 feet
    N b. 253.24 feet
    Y c. 252.92 feet
    N d. 252.24 feet

5418: Small passenger vessels in coastwise service must carry approved __________.

    N a. life floats
    N b. inflatable buoyant apparatus
    N c. inflatable liferafts
    Y d. Any of the above

5467: What is an advantage of the 6x19 class of wire rope over the 6x37 class of wire rope of the same diameter?

    N a. Greater holding power
    N b. Better fatigue life
    N c. Resistance to elongation
    Y d. Resistance to corrosion

5535: What effect is achieved from soaking an anchor?

    Y a. It allows the bottom soil to consolidate.
    N b. It gives the palms time to trip the anchor.
    N c. It stabilizes the mooring system.
    N d. It lubricates the anchor for better tripping.

5555: The fluke angle of an anchor system is the angle between the __________.

    Y a. flukes and the shank
    N b. shank and the sea bottom
    N c. mooring line and the sea bottom
    N d. flukes and the shackle

5721: Deficient oxygen content inside a chain locker can be detected with __________.

    N a. litmus paper
    N b. combustible gas indicator
    N c. oxygen breathing apparatus
    Y d. oxygen indicator

6415: While drilling ahead with 60 foot draft, the DEEP DRILLER encounters lost circulation and loses 460 barrels of 16 pounds per gallon mud to the hole. What is the resulting draft if no additional ballast is taken on?

    N a. 57 feet
    N b. 58 feet
    Y c. 59 feet
    N d. 60 feet

6467: The series of valves used to control the return flow in well control operations is called the __________.

    N a. valve assembly
    N b. standpipe manifold
    N c. accumulator manifold
    Y d. choke manifold

6475: The pneumatic containers which store bulk dry mud additives and cement on a MODU are called __________.

    N a. mud hoppers
    N b. bulk bins
    Y c. P-tanks
    N d. mud tanks

6731: During the required periodic abandon ship drill aboard a MODU, each person not assigned duties in the muster list is __________.

    N a. instructed in the use of portable fire extinguishers
    N b. shown a video demonstrating lifeboat launching
    Y c. instructed in the use of life jackets
    N d. not required to attend the boat drill

6833: If a drill required by regulations is not completed on a mobile offshore drilling unit, the Master or person in charge must __________.

    N a. report this immediately to the OCMI
    N b. report this immediately to the Commandant of the Coast Guard
    Y c. log the reason for not completing the drill
    N d. conduct two of the required drills at the next opportunity

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

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

7685: The free surface corrections depend upon the dimensions of the surface of the free liquids and the __________.

    N a. volume of liquid in the tank
    Y b. displacement of the MODU
    N c. location of the tank in the MODU
    N d. height of the center of gravity of the MODU

7695: Adding the FSCL to KG yields __________.

    N a. KM
    N b. GM
    N c. KGT
    Y d. KGL

8625: What is the new location of the transverse center of gravity if 200 short tons are discharged from 10 feet to port of the centerline on a MODU with TCG 0.7 foot starboard of the centerline, and the displacement is 9,000 short tons?

    Y a. 0.94 foot starboard of centerline
    N b. 0.90 foot starboard of centerline
    N c. 0.47 foot port of centerline
    N d. 0.23 foot port of centerline

9624: You detect an odor of burning cotton fabric and then see smoke coming from the top of an open laundry room doorway. After activating the fire alarm, you might do any of the following next, EXCEPT __________.

    N a. begin breaking out the nearest fire hose
    N b. secure ventilation to the room
    N c. close the door to the room
    Y d. acquire the nearest self contained breathing apparatus