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.


31: All of the following are part of the fire triangle EXCEPT __________.


297: Which information is NOT required to be posted in or near the wheelhouse?


306: In areas where CO2 piping is installed, such piping may not be used for any other purpose EXCEPT __________.


345: A 100-GT vessel, constructed before July 1,1974, is loading diesel fuel. What is the minimum capacity of the drip pans required for placement under or around each fuel tank vent, overflow, and fill pipe?

    N a. 1 gallon
    Y b. 5 gallons
    N c. 1 barrel
    N d. 2 barrels

380: You are fighting a fire in a cargo hold on your vessel. Which action is most important concerning the stability of the vessel?

    N a. Shutting off electricity to damaged cables
    Y b. Draining fire-fighting water and pumping it overboard
    N c. Maneuvering the vessel so the fire is on the lee side
    N d. Removing burned debris from the cargo hold

390: A tank which carries liquid is dangerous to the stability of a vessel when it is __________.

    N a. low in the vessel
    N b. completely empty
    N c. completely full
    Y d. slack

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

526: Motor-propelled lifeboats are required to have sufficient fuel to operate continuously at 6 knots for how many hours?

    N a. 6
    N b. 12
    N c. 18
    Y d. 24

673: The grab rail of a metal lifeboat is normally located __________.

    Y a. along the turn of the bilge
    N b. along each side of the keel
    N c. near the top of the gunwale
    N d. at the bow and at the stern

723: The color of the signal flare sent up by a submarine to indicate an emergency condition within the submarine is __________.

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

806: On small passenger vessels electrical equipment in spaces that contain gasoline powered machinery must be __________.

    N a. explosion-proof
    N b. intrinsically safe
    N c. ignition protected for use in a gasoline atmosphere
    Y d. All of the above

849: You are testing the external inflation bladder on an immersion suit and find it has a very slow leak. Which action should be taken?

    N a. Replace the suit.
    N b. Replace the inflation bladder.
    Y c. Take it out of service and repair in accordance with the manufacturers instructions.
    N d. Some leakage should be expected and a topping off tube is provided; no other action is necessary.

905: The color of the signal flare sent up by a submarine coming to periscope depth is __________.

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

1010: Which action will best increase the transverse stability of a merchant vessel at sea?

    Y a. Ballasting the double bottom tanks
    N b. Deballasting the deep tanks
    N c. Positioning a heavy lift cargo on the main deck
    N d. Raising the cargo booms to the upright position

1044: What is the lifesaving signal for "You are seen - Assistance will be given as soon as possible"?

    N a. Green star rocket
    N b. Red star rocket
    Y c. Orange smoke signal
    N d. Horizontal motion of a flag

1051: The fresh air intake of the inert gas system _____,

    N a. prevents the flue gas from falling below an oxygen content of 3%
    Y b. allows the inert gas piping to be used for gas freeing the tanks
    N c. opens when there is excessive vacuum on the deck water seal
    N d. enables outside air to mix with and to cool the hot flue gasses

1169: Your vessel's draft is 24'-06" forward and aft. The MT1 of your vessel is 1000 ft-tons. How many tons of cargo must be loaded in number 4 hold, which is 100 feet abaft the tipping center, if she is to have a 2 foot drag?

    N a. 120 tons
    Y b. 240 tons
    N c. 300 tons
    N d. 480 tons

1307: Firefighting foam is only effective when the foam __________.

    N a. penetrates to the bottom of the fire
    N b. is kept saturated with low-velocity water fog
    N c. mixes with the burning fuel oil
    Y d. completely covers the top of the burning liquid

1348: Dry chemical fire extinguishers are effective on which type(s) of fire?

    N a. Burning oil
    N b. Electrical
    N c. Paint
    Y d. All of the above

1834: The liquid mud tanks on your vessel measure 20'L by 18'B by 7'D. The vessel's displacement is 986 T and the specific gravity of the mud is 1.6. What is the reduction in GM due to 2 of these tanks being slack?

    N a. .09 foot
    N b. .45 foot
    Y c. .88 foot
    N d. 1.35 feet

1852: The liquid mud tanks on your vessel measure 32'L by 15'B by 8'D. The vessel's displacement is 640 tons and the specific gravity of the mud is 1.8. What is the reduction in GM due to 2 of these tanks being slack?

    N a. 0.74 foot
    N b. 1.24 feet
    Y c. 1.41 feet
    N d. 1.66 feet

1860: You are underway at sea when a fire is reported in the forward part of the vessel. The wind is from dead ahead at 20 knots. You should __________.

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

1978: How should you try to right a capsized small sailing vessel?

    N a. Position all personnel at the stern and rock the vessel upright.
    N b. Position all personnel around the mast and lift the vessel upright.
    Y c. Lock the centerboard in the down position, stand on the centerboard, and pull on a shroud or a halyard.
    N d. Put the centerboard in the up position and have all personnel haul in on the line attached to the mast.

2006: You have 400 tons of below deck tonnage and 100 tons of above deck cargo on board. You must load 160 tons of liquid mud below deck. How much more deck cargo can you load? (See illustration D036DG, stability letter for M.V. Hudson.) (D036DG )

    N a. 85 tons
    Y b. 135 tons
    N c. 195 tons
    N d. 245 tons

2216: Which statement is generally correct regarding the maintenance requirements for ships under GMDSS?

    N a. Redundancy of functions of certain equipment will partially meet this requirement.
    N b. On-board maintenance provided by a person holding a GMDSS maintainer's license will partially meet the requirements.
    N c. Shoreside maintenance and scheduled tests and inspections will partially meet this requirement.
    Y d. All of the above

2517: When may a personnel net be used to bring heavy equipment aboard an offshore drilling unit?

    N a. Only when the seas are calm
    N b. Only during rough weather
    N c. Only when there are no personnel in the net
    Y d. Never

2517: When may a personnel net be used to bring heavy equipment aboard an offshore drilling unit?

    N a. Only when the seas are calm
    N b. Only during rough weather
    N c. Only when there are no personnel in the net
    Y d. Never

2574: Your vessel's drafts are: FWD 27'-06", AFT 28'-02"; and the KG is 23.1 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 60° inclination.

    N a. 0.9 foot
    Y b. 1.8 feet
    N c. 2.7 feet
    N d. 4.5 feet

2634: Use the floodable length curve in Section 1, the blue pages, of the Stability Data Reference Book. If the curve represents 45 percent permeability and number 4 hold floods, the vessel will sink if the permeability exceeds what percent?

    N a. 40
    N b. 48
    N c. 53
    Y d. 60

2715: The certificate of inspection of a MODU will specify the __________.

    Y a. number of licensed personnel required on board
    N b. maximum load line draft
    N c. maximum water depth for drilling
    N d. next date for an inclining experiment

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

2962: The SS AMERICAN MARINER will sail with the load shown. Use the white pages of The Stability Data Reference Book to determine the drafts. ST-0090

    Y a. FWD 17'-06", AFT 24'-03"
    N b. FWD 19'-03", AFT 22'-06"
    N c. FWD 17'-01", AFT 24'-08"
    N d. FWD 21'-04", AFT 19'-07"

3151: The DEEP DRILLER, while loaded as shown in the Sample Load Form #4 (Drilling), suffers severe damage to the starboard aft column below the waterline. You should pump from tank __________.

    N a. C1S
    Y b. 9S
    N c. 2P
    N d. 2S

3423: What is the trim of a jack-up with forward draft of 11 feet and aft draft of 13.75 feet?

    N a. 1.38 feet by the stern
    N b. 1.45 feet by the stern
    Y c. 2.75 feet by the stern
    N d. 2.90 feet by the stern

3467: An emergency sea anchor may be constructed by using __________.

    N a. a boat bucket
    N b. an air tank filled with water
    N c. an oar and canvas weighted down
    Y d. All of the above

3752: A shipmate suffers a heart attack and stops breathing. You must __________.

    N a. administer oxygen
    Y b. immediately check his pulse and start CPR
    N c. make the victim comfortable in a bunk
    N d. immediately give a stimulant, by force if necessary

3789: The signal for a fire emergency on an OSV is __________.

    N a. a 30 second on 30 second off alternating signal
    Y b. the continuous blast of the ships whistle for not less than 10 seconds supplemented by the continuous ringing of the general alarm bells for not less than 10 seconds
    N c. an intermittent ringing of the general alarm for not less than ten seconds
    N d. announced over the PA system

3861: Coast Guard Regulations (46 CFR) require that life jackets shall be __________.

    N a. provided for each person onboard
    N b. provided for all personnel of watch
    N c. readily accessible to persons in the engine room
    Y d. All of the above

4043: 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 GML?

    N a. 5.98 feet
    N b. 6.48 feet
    Y c. 6.84 feet
    N d. 7.11 feet

4101: The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballasting to Survival). What is the new height of the transverse metacenter if all the bulk materials are discharged?

    N a. 63.14 feet
    N b. 64.05 feet
    Y c. 64.30 feet
    N d. 66.09 feet

4208: You are loading in a port subject to the winter load line mark and bound for a port subject to the summer load line mark. You will enter the summer zone after steaming six days. You will consume 32 tons of fuel, water, and stores per day. The hydrometer reading at the loading pier is 1.005, and the average TPI is 65. What is the minimum freeboard required at the start of the voyage? (Get Table Data)

    N a. 93 inches
    N b. 90 inches
    Y c. 81 inches
    N d. 70 inches

4225: The maximum transverse extension of the cantilever for the COASTAL DRILLER places the rotary __________.

    Y a. within 10 feet of the centerline
    N b. at the vessel TCG
    N c. at the leg centroid
    N d. 40 feet aft of the transom

4232: The number of approved adult life jackets that shall be carried is equal to __________. (small passenger vessel regulations)

    N a. 120% of the number of persons listed in the vessel's Certificate of Inspection
    N b. 90% of the number of persons listed in the vessel's Certificate of Inspection
    N c. 90% of the number of persons on board at the time
    Y d. the number of persons on board at the time

4563: While loaded as shown in the COASTAL DRILLER sample load form #3 (drilling), 200 kips are discharged from 60 feet AF0 and 30 feet to starboard of the centerline. What is the starboard leg reaction?

    N a. 4,271 kips
    Y b. 5,393 kips
    N c. 5,410 kips
    N d. 5,571 kips

4786: Which number indicates the hydrostatic release? (D015SA )

    N a. 3
    Y b. 6
    N c. 7
    N d. 10

5073: An obstruction light on a mobile offshore drilling unit on the waters of the U.S. Outer Continental Shelf, shall have a lens that is visible over an arc of __________.

    N a. 60°
    N b. 90°
    N c. 180°
    Y d. 360°

5276: The SS AMERICAN MARINER has drafts of: FWD 18'-07", AFT 23'-03". Use the white pages of the Stability Data Reference Book to determine the drafts if you ballast the forepeak with 92 tons of seawater.

    Y a. FWD 19'-04.9", AFT 22'-08.7"
    N b. FWD 19'-05.4", AFT 22'-08.0"
    N c. FWD 19'-05.7", AFT 22'-07.7"
    N d. FWD 19'-06.3", AFT 22'-07.1"

5307: The COASTAL DRILLER, in ocean transit at a draft of 10 feet 6 inches with winds greater than 70 knots, has a KGT of 38.7 feet and a KGL of 38.2 feet. The margin on the maximum allowable KG is __________.

    N a. 26.8 feet
    N b. 26.3 feet
    N c. 1.8 feet
    Y d. 1.3 feet

5462: The SS AMERICAN MARINER is ready to bunker with drafts of FWD 13'-10", AFT 16'-04". After all bunkers are on board, soundings indicate the tonnages shown. Use the white pages of The Stability Data Reference Book to determine the free surface correction. ST-0179

    N a. 1.30 feet
    N b. 1.17 foot
    Y c. 1.01 foot
    N d. 0.91 foot

5541: What is the "holding power ratio" of an anchor?

    Y a. Maximum mooring line tension divided by the anchor's weight in air
    N b. Anchor's weight in air divided by the maximum mooring line tension
    N c. Preloading tension divided by the anchor's weight in air
    N d. Operating tension divided by the anchor's weight in air

5651: On a semisubmersible drilling unit, decreasing riser tension reduces __________.

    Y a. KG
    N b. KM
    N c. GM
    N d. free surface moments

5924: The SS AMERICAN MARINER is ready to bunker with drafts of FWD 13'-10", AFT 16'-04". After all bunkers are on board, soundings indicate the tonnages shown. Use the white pages of The Stability Data Reference Book to determine the free surface correction. ST-0187

    N a. 1.30 feet
    N b. 1.07 foot
    N c. 0.96 foot
    Y d. 0.73 foot

5963: On a MODU, CO2 extinguishers must be weighed __________.

    N a. monthly
    N b. quarterly
    N c. semiannually
    Y d. annually

6473: On an offshore drilling rig, the pumps which circulate drilling fluid through the drill string while drilling are called the __________.

    N a. circulation pumps
    Y b. mud pumps
    N c. centrifugal pumps
    N d. mixing pumps

6501: At a refueling area or fuel facility, smoking or any flame or spark is prohibited __________.

    Y a. within 50 feet
    N b. anywhere on the helodeck
    N c. during refueling operations
    N d. within 100 feet

7071: The sorting of accident victims according to the severity of their injuries is called __________.

    N a. evaluation
    Y b. triage
    N c. surveying
    N d. prioritizing

8127: 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 transverse metacenter?

    N a. 134.95 feet
    N b. 135.91 feet
    Y c. 136.38 feet
    N d. 136.89 feet

8905: When it is necessary to remove a victim from a life threatening situation, the person giving first aid must __________.

    N a. pull the victim by the feet
    Y b. avoid subjecting the victim to any unnecessary disturbance
    N c. carry the victim to a location where injuries can be assessed
    N d. place the victim on a stretcher before attempting removal

9291: An elevated jack-up weighs 14,000 kips. Its TCG is located 1.0 foot to starboard of the centerline. What would be the new TCG for the jack-up if the drill floor, weighing 700 kips, is skidded 10 feet to port?

    N a. 9.00 feet port
    Y b. 0.50 foot starboard
    N c. 0.50 foot port
    N d. 1.00 foot port

9513: In the presence of external forces, the center of buoyancy of an inclined vessel is vertically aligned with the __________.

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