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.


274: The flag hoist 62.2 would be sent as pennant 6, pennant 2, __________.


318: The best treatment for preventing traumatic shock after an accident is to __________.


338: A man has a burn on his arm. There is reddening of the skin, blistering, and swelling. Using standard medical terminology this is a __________.


375: Fueling results in the collection of waste oil in drip pans and containers. Which is an approved method of disposing of the waste oil?

    N a. Draining it overboard when the vessel gets underway
    Y b. Placing it in proper disposal facilities
    N c. Adding sinking agents and discharging it into the water
    N d. Mixing it with dispersants before draining it overboard

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

483: The SS AMERICAN MARINER is ready to load the cargo listed. There is already 4184 tons of cargo on board with a KG of 27.8 feet. Use the white pages of the Stability Data Reference Book to determine the final KG of all the cargo after loading is completed. ST-0008

    Y a. KG 25.8 feet
    N b. KG 26.6 feet
    N c. KG 27.2 feet
    N d. KG 28.0 feet

488: A rescuer can most easily determine whether or not an adult victim has a pulse by checking the pulse at the __________.

    Y a. carotid artery in the neck
    N b. femoral artery in the groin
    N c. brachial artery in the arm
    N d. radial artery in the wrist

565: Small oil spills on deck can be kept from going overboard by __________.

    N a. driving wooden plugs into the vents
    N b. closing the lids on the vents
    Y c. plugging the scuppers
    N d. plugging the sounding pipes

587: Which vessel is NOT required to have a radiotelephone?

    N a. A 34-foot vessel engaged in towing
    N b. A dredge operating in a channel
    N c. A vessel of 100 GT carrying 50 passengers for hire
    Y d. A 12-meter private yacht

795: The authority to grant an alternate procedure for oil transfer operations rests with the __________.

    N a. nearest Coast Guard office
    N b. Officer-in-Charge, Marine Inspection
    N c. Area Commander
    Y d. Captain of the Port

932: Portable CO2 fire extinguishers should NOT be used to inert a space containing flammable liquids due to the danger of __________.

    N a. the CO2 being inhaled by personnel
    N b. reflash of burning liquids
    N c. vapor condensation on the extinguisher
    Y d. the discharge causing a static spark

953: You are at sea on a vessel that has a beam of 50 feet, and you calculate the period of roll to be 22 seconds. What is the vessel's metacentric height?

    N a. 0.8 ft
    Y b. 1.0 ft
    N c. 1.2 ft
    N d. 1.4 ft

1075: Prior to lowering the lifeboat, the most important item to check is the __________.

    N a. oars
    N b. sail
    Y c. boat plug
    N d. life preservers

1183: The engine in a covered lifeboat is fueled with __________.

    N a. leaded gasoline
    N b. unleaded gasoline
    Y c. diesel oil
    N d. liquefied gas

1206: Inflatable liferafts are provided with a __________.

    N a. knife
    N b. towing connection
    N c. lifeline
    Y d. All of the above

1225: If the coxswain of your lifeboat gives the command "Hold water" you should __________.

    N a. complete the stroke, raise your oar slightly, swinging the oar slightly forward, and place it in the boat
    N b. lift the oar in a vertical position
    N c. complete the stroke and hold the oar out of the water
    Y d. dip the blade of your oar into the water vertically and hold it perpendicular to the keel line

1275: A documented vessel's name is marked on a clearly visible exterior area of both sides of the bow and on the stern in block letters not less than __________.

    N a. 6 inches in height
    N b. 5 inches in height
    Y c. 4 inches in height
    N d. 3 inches in height

1381: Large volumes of carbon dioxide are safe and effective for fighting fires in enclosed spaces, such as in a pumproom, provided that the __________.

    N a. persons in the space wear gas masks
    N b. persons in the space wear damp cloths over their mouths and nostrils
    Y c. ventilation system is secured and all persons leave the space
    N d. ventilation system is kept operating

1390: Which sequence is correct when launching a lifeboat stowed in gravity davits?

    N a. Release gripes, turn on emergency disconnect switch, release frapping lines
    N b. Release tricing pennants, turn on emergency disconnect switch, release frapping lines
    N c. Operate limit switches, release gripes, lift brake
    Y d. Release gripes, lift brake, release tricing pennants

1406: The principal danger from ice collecting on a vessel is the____________________.

    N a. decrease in capabilities of radar
    N b. decrease in displacement
    N c. adverse effect on trim
    Y d. loss of stability

1411: Which statement about entry into a space that has been sealed for a long time is TRUE?

    Y a. A tank that has been used to carry hazardous liquids should be tested for oxygen content, toxicity, and explosive gases.
    N b. You can safely enter the space without a breathing apparatus if the oxygen content exceeds 14%.
    N c. The natural ventilation through the installed vents is sufficient to provide the proper oxygen content.
    N d. The heat of the sun on upper ballast tanks, such as in a bulk carrier, may generate carbon monoxide.

1479: If your vessel is aground at the bow, it would be preferable that any weight removals be made from the __________.

    Y a. bow
    N b. mid-section
    N c. stern
    N d. All of the above

1582: You are off the coast of South Africa, when a seaman is injured. What indicator should be used in a message requesting medical advice from a South African station?

    N a. DH MEDICO
    N b. XXX RADIOMEDICAL
    N c. MEDRAD
    Y d. PORT HEALTH

1683: You are running before a strong wind in a sloop. The most dangerous thing to do is __________.

    Y a. jibe
    N b. tack about
    N c. reef the mainsail
    N d. strike the jib

1792: For GMDSS, which statement concerning a compulsory vessel is FALSE?

    N a. A conditional or partial exemption may be granted, in exceptional circumstances, for a single voyage outside the sea area for which the vessel is equipped.
    Y b. Once a compulsory vessel's GMDSS station has been fitted and inspected, the station must be inspected only once every five years.
    N c. All passenger vessels regardless of size and all cargo vessels that are 300 Gross Tons or larger must comply.
    N d. Compulsory vessels must carry at least two licensed GMDSS Radio Operators for Distress and Safety radio-communications purpose..

1828: A gas-free certificate would usually be issued by a(n) __________.

    N a. ABS marine surveyor
    Y b. certified marine chemist
    N c. port engineer
    N d. Coast Guard marine inspector

2017: A shipboard Oil Pollution Emergency Plan is required of __________.

    N a. all vessels, regardless of size and commercial application
    N b. any barge or ship constructed or operated in such a manner that no oil in any form can be carried aboard
    Y c. an oil tanker of 150 gross tons and above, or other ship of 400 gross tons and above
    N d. an oil tanker of 400 gross tons and above, or other ships of 150 gross tons and above

2078: A device fitted over the discharge opening on a relief valve consisting of one or two woven wire fabrics is called a flame __________.

    N a. stopper
    Y b. screen
    N c. filter
    N d. restrictor

2419: Where should the GMDSS radio log be kept on board ship?

    N a. In the Captain's office
    N b. In the sea cabin
    Y c. At the GMDSS operating position
    N d. Anywhere on board the vessel

2546: Your vessel's drafts are: FWD 24'-07", AFT 25'-09"; and the KG is 24.0 feet. What is the righting moment when the vessel is inclined to 15°? (Use the selected stability curves in Section 1, the blue pages, of the Stability Data Reference Book)

    N a. 5,202 foot-tons
    Y b. 8,666 foot-tons
    N c. 10,876 foot-tons
    N d. 11,424 foot-tons

2605: Your vessel's drafts are FWD 24'-02", AFT 24'-04". Use the information in Section 1, the blue pages, of the Stability Data Reference Book to determine the final drafts if 295 tons of cargo are loaded 122 feet aft of amidships.

    N a. FWD 22'-08", AFT 26'-00"
    N b. FWD 22'-10", AFT 25'-09"
    Y c. FWD 23'-04", AFT 26'-03"
    N d. FWD 23'-05", AFT 25'-11"

2823: A vessel heading ESE is on a course of __________.

    Y a. 112.5°
    N b. 135.0°
    N c. 157.5°
    N d. 180.0°

3058: Life floats and buoyant apparatus shall be marked __________. (small passenger vessel regulations)

    N a. with the vessel's name in 3" letters
    N b. conspicuously in 1-1/2" letters with the number of persons allowed
    N c. with the vessel's name on all paddles
    Y d. All of the above

3240: When a vessel is required to have a power-driven fire pump, the pump may also be used for __________. (small passenger vessel regulations)

    N a. the drinking water supply system
    Y b. the bilge pump
    N c. engine cooling water
    N d. None of the above

3417: Which statement is TRUE concerning an inflatable liferaft?

    N a. The floor may be inflated for insulation from cold water.
    N b. Crew members may jump into the raft without damaging it.
    N c. The raft may be boarded before it is fully inflated.
    Y d. All of the above

3460: How should the letter "T" be pronounced when spoken on the radiotelephone?

    N a. TEE
    N b. TA HO
    Y c. TANG GO
    N d. TU TU

3477: What is the increase in the transverse free surface correction for the DEEP DRILLER at a draft of 60 feet if 103.48 long-tons of ballast are transferred from a full ballast tank 1P to an empty ballast tank 10S?

    N a. 0.47 foot
    Y b. 0.32 foot
    N c. 0.27 foot
    N d. 0.13 foot

3506: You are on a Mariner class cargo vessel. Your drafts are: FWD 17'-04", AFT 19'-04". You wish to increase the calculated GM of 3.0' to 4.2'. What tanks should you ballast? (Use the white pages in the Stability Data Reference Book.)

    Y a. Tanks: DB3, DB4
    N b. Tanks: DB6, DB3
    N c. Tanks: DB2, DB6
    N d. Tanks: DT7, DT8, DB3

3555: What are the maximum vertical moments, including free surface moments, permitted on the DEEP DRILLER at survival draft if the winds are greater than 70 knots?

    N a. 912,120 foot-tons
    N b. 942,120 foot-tons
    Y c. 996,522 foot-tons
    N d. 998,927 foot-tons

3703: While loaded as shown in Sample Load Form #5 (Survival), an estimated 250 long tons of snow and ice accumulates on the DEEP DRILLER at an estimated height of 127 feet. Assuming no corrective ballasting, what is the new height of the center of gravity corrected for longitudinal free surface effects?

    N a. 58.78 feet
    Y b. 60.68 feet
    N c. 61.53 feet
    N d. 62.78 feet

3763: What is the procedure for checking for spinal cord damage in an unconscious patient?

    N a. Beginning at the back of the neck, and proceeding to the buttocks, press the spine to find where it hurts
    Y b. Prick the skin of the hands and the soles of the feet with a sharp object to check for reaction
    N c. Selectively raise each arm and each leg and watch patient's face to see if he registers pain
    N d. Roll patient onto his stomach and prick along the length of his spine to check reaction

3843: The sounding in tank 1P of the DEEP DRILLER is 7.58 feet. What are the longitudinal moments for this quantity of ballast?

    N a. 729 ft-long tons
    N b. 6,707 ft-long tons
    N c. 19,609 ft-long tons
    Y d. 27,652 ft-long tons

3877: On the DEEP DRILLER, among the starboard-side valves to open when deballasting from ballast tank 2S is valve __________.

    N a. 8
    N b. 19
    N c. 20
    Y d. 48

4070: Motor-propelled lifeboats are required to be fitted with which of the following?

    Y a. Compartments for the storage of canned drinking water
    N b. Ballast tanks to prevent the boat from capsizing
    N c. An air starter on the diesel engine
    N d. Auxiliary mechanical propulsion (Fleming gear)

4090: Which instrument may a towing vessel, engaged in towing exclusively on the Western Rivers, use in place of a magnetic compass?

    N a. Gyrocompass
    Y b. Illuminated Swing Meter
    N c. LORAN-C Receiver
    N d. GPS Receiver

4269: Which statement about immersion suits is TRUE?

    Y a. Prior to abandonment, the suit allows body movement such as walking, climbing a ladder and picking up small objects.
    N b. The immersion suit seals in body heat and provides protection against hypoglycemia for weeks.
    N c. The suit is flameproof and provides protection to the wearer while swimming through burning oil.
    N d. The wearer of the suit is severely restricted and requires 1.5 times more time to climb a ladder than without the suit.

5092: You are scheduled to load 3200 tons of cargo, 45 tons of crew effects and stores and 259 tons of fuel. Use the blue pages of the Stability Data Reference Book to determine the vessel's mean draft in fresh water:

    N a. 17'-00"
    Y b. 16'-09"
    N c. 16'-06"
    N d. 16'-04"

5517: Grinding to eliminate shallow surface defects should be done __________.

    Y a. parallel to the longitudinal direction of the chain
    N b. perpendicular to the direction of the anchor chain
    N c. diagonally across the link of the anchor chain
    N d. around the circumference of the chain link

5708: On a vessel of 6500 tons displacement, a tank 30 ft. long, 32 ft. wide and 18 ft. deep is half filled with liquid cargo (S.G. 1.048) while the vessel is floating in saltwater (S.G. 1.026). What is the free surface constant for this tank?

    N a. 1152
    N b. 1336
    Y c. 2390
    N d. 2731

5941: Each fire hydrant serving machinery spaces containing oil fired boilers, internal combustion machinery, or oil fuel units must be equipped with a __________.

    N a. fireman's outfit
    Y b. low-velocity spray applicator
    N c. marine strainer
    N d. pick axe

6071: On offshore drilling units fitted with fixed CO2 systems, the system must withstand a bursting pressure of at least __________.

    N a. 5,000 pounds per square inch
    Y b. 6,000 pounds per square inch
    N c. 8,000 pounds per square inch
    N d. 10,000 pounds per square inch

6523: On the cargo manifest, the total weight of a box containing cargo is the __________.

    N a. tare weight
    N b. net weight
    Y c. gross weight
    N d. cargo weight

6571: To determine the number of portable fire extinguishers required on a mobile offshore drilling unit, you should check the __________.

    N a. hot work permit
    Y b. Certificate of Inspection
    N c. Safety of Life at Sea Certificate
    N d. Operations Manual

6947: Which record must be retained on board after a report of casualty to a MODU?

    N a. Preventive maintenance log
    Y b. Storage plans
    N c. Oil Record Book
    N d. Repair record book

7587: The geometric center of the underwater volume is known as the __________.

    N a. center of flotation
    N b. tipping center
    N c. center of gravity
    Y d. center of buoyancy

8191: During a severe storm while the COASTAL DRILLER is elevated, on board loads must be shifted so that the TCG is on the centerline and the LCG is __________.

    N a. 40.00 feet AF0
    N b. 68.33 feet AF0
    Y c. 119.44 feet AF0
    N d. 160.33 feet AF0

8547: What does the term "head" mean when applied to a pump?

    N a. Length of its discharge pipe
    N b. Height of its discharge pipe
    Y c. Difference between the discharge and suction pressures
    N d. Sum of discharge and suction pressures

8627: What is the shift in the longitudinal center of gravity if 200 short tons are discharged from 30 feet forward of amidships on a MODU with LCG 1.5 feet forward of amidships, and displacement 9,000 short tons?

    N a. 0.62 foot aft
    Y b. 0.65 foot aft
    N c. 0.68 foot aft
    N d. 0.71 foot aft

8897: The international body responsible for drafting the convention prohibiting marine pollution (MARPOL) is the __________.

    N a. Maritime Advisory Council
    Y b. International Maritime Organization
    N c. International Association of Shipping
    N d. Association of Seafaring Nations

9595: A non-symmetrical tank aboard a MODU contains 390 tons of ballast at a VCG of 9.85 feet. Ballast weighing 250 tons and a VCG of 12.0 feet is discharged. The vertical moments for the remaining ballast is __________.

    Y a. 842 ft-long tons
    N b. 3,000 ft-long tons
    N c. 3,842 ft-long tons
    N d. 6,842 ft-long tons