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.


110: A vertical shift of weight to a position above the vessel's center of gravity will __________.


190: Which technique could be used to give a more comfortable roll to a stiff vessel?


342: Every injury aboard a commercial fishing industry vessel must be reported to the __________.


398: For small, first-degree burns the quickest method to relieve pain is to __________.

    Y a. immerse the burn in cold water
    N b. administer aspirin
    N c. apply petroleum jelly
    N d. apply a bandage to exclude air

758: 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
    Y b. change course and put the stern to the wind
    N c. change course to put the wind on either beam and increase speed
    N d. remain on course but slack the speed

1135: Which statement about the bilge piping system of "T-Boats" that are more than 26 feet in length is NOT correct?

    N a. Each watertight compartment must have its own bilge suction line or pump
    N b. Each space's bilge suction connection to a manifold must have stop and check valves, or a stop-check valve
    Y c. All bilge piping must be at least 2" inside-diameter brass pipe
    N d. Bilge suction strainers must have an open area not less than three times the area of the bilge pipe

1149: If the metacentric height is small, a vessel will __________.

    Y a. be tender
    N b. have a quick and rapid motion
    N c. be stiff
    N d. yaw

1178: The lowest temperature required to cause self-sustained combustion of a substance independent of any outside source of ignition is called __________.

    N a. explosive range
    N b. flash point
    Y c. ignition temperature
    N d. combustion temperature

1264: The operating cord on an inflatable liferaft should be renewed by __________.

    N a. removing the top half of the shell, cutting the line at its source, and renewing completely
    N b. cutting the line where it enters the case and replacing that portion
    N c. leaving the original line and tying another one to it so the two lines will take the strain
    Y d. an approved servicing facility ashore

1286: The inside light in an inflatable liferaft is turned on __________.

    Y a. automatically as the liferaft inflates
    N b. with a switch near the boarding handle
    N c. at night because the light has a photosensitive switch
    N d. by screwing the bulb in after the raft is inflated

1444: A stored-pressure water extinguisher is most effective against fires of class __________.

    Y a. A
    N b. B
    N c. C
    N d. D

1546: What are the most important reasons for using water fog to fight fires?

    N a. Smothers burning surfaces, organically destroys fuel
    Y b. Cools fire and adjacent surfaces, provides protective barrier
    N c. Reaches areas not protected by steam or CO2 smothering systems
    N d. Allows fire to be attacked from leeward, saturates liquid surfaces

1550: The purpose of a water spray system on a covered lifeboat is to __________.

    N a. cool the lifeboat engine
    Y b. keep the lifeboat from reaching combustion temperature while operating in a fire
    N c. keep the lifeboat warm in a cold climate by applying heated water spray from the engine to the boat
    N d. put out a fire inside the lifeboat

1679: You are on a 92 foot fishing vessel with 35 individuals on board. Which one of the following items are you NOT required to have on board?

    Y a. Gyro compass
    N b. Magnetic compass
    N c. Electronic position fixing device
    N d. VHF radiotelephone

1691: When anchoring a small sailing vessel in rough weather, the best anchor line would be composed of __________.

    N a. chain-wire
    N b. chain-manila
    Y c. chain-nylon
    N d. all chain

1733: The last 1.0 meter (3.3 feet) of vapor piping before the vessel vapor connection must be painted __________.

    Y a. red/yellow/red
    N b. yellow/red/yellow
    N c. international orange
    N d. hi-visibility yellow

1757: You are operating a liftboat. Before starting jacking operations you should __________.

    N a. put the crane in a vertical position
    N b. close the wheelhouse doors
    Y c. have all personnel don life jackets
    N d. put a watch in the engineroom

1798: The combined fan discharge rate in an inert gas system is related to the __________.

    N a. shoreside loading rate
    Y b. cargo pump discharge rate
    N c. boiler forced draft fan rate
    N d. size of the largest cargo tank

1817: Offshore drilling units that carry twelve or more persons on a voyage of more than three days must have a __________.

    N a. recreation room
    N b. radar room
    Y c. hospital space
    N d. navigation space

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

1882: A sailing vessel with the wind coming from 260° relative would be __________.

    N a. on a close reach
    Y b. on a broad reach
    N c. on a starboard tack
    N d. running before the wind

2015: A shroud is __________.

    N a. a light sail
    N b. a topmast stay
    N c. a sheet
    Y d. standing rigging

2051: You are standing a radio watch aboard the rig. A crew boat calls you on VHF channel 16. When you reply with your vessel name and call letters, you should request the crew boat to switch to an intership channel such as channel __________.

    N a. 6
    Y b. 10
    N c. 12
    N d. 14

2066: A boom vang __________.

    Y a. holds the boom down and flattens the main sail
    N b. draws the head of the sail to windward
    N c. tautens the standing rigging
    N d. douses the gaff topsail

2122: Your drafts are: FWD 6'-00", AFT 6'-06". From past experience, you know that the vessel will increase her draft 1 inch for every 6 tons loaded. There is rig water on board and 17 tons of deck cargo. How many more tons of cargo can be loaded and still maintain the same trim? (D037DG )

    N a. 14 tons
    Y b. 18 tons
    N c. 24 tons
    N d. 33 tons

2284: The flammable limits for crude oil are __________.

    N a. 1% to 6% mixture in air
    N b. 20% to 40% mixture in air
    N c. 0% to 1% mixture in air
    Y d. unavailable

2680: You are loading benzyl chloride and a small quantity spills on deck. According to the Chemical Data Guide, which of the following may be used as a substitute for water for the cleanup procedure?

    N a. Alcohol
    N b. Sodium bisulfite
    Y c. Sodium carbonate
    N d. Soda ash solution

2731: The document that certifies the correctness of the load line marks on a MODU is called the __________.

    N a. Certificate of Inspection
    Y b. Load line certificate
    N c. Certificate of Documentation
    N d. SOLAS Certificate

2761: In the MODU construction portfolio, materials which do not conform to ASTM or ABS specifications must also include the __________.

    Y a. chemical and physical properties of the material
    N b. name of the alternative standard or specification
    N c. the ASTM or ABS specification the material approximates
    N d. manufacturer or origin of the material

2917: For a jack-up, the angle of maximum stability corresponds approximately to the angle of __________.

    Y a. deck edge immersion
    N b. the load line
    N c. downflooding
    N d. loll

3062: The Master of a vessel shall make sure the EPIRB is tested __________. (small passenger vessel regulations)

    N a. daily
    N b. weekly
    N c. every two weeks
    Y d. monthly

3364: 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-0124

    N a. 444 tons
    N b. 644 tons
    N c. 1044 tons
    Y d. 1263 tons

3399: Which sizes of fire extinguishers are considered to be semi-portable? (Uninspected vessel regulations)

    N a. I, II, III, IV, and V
    N b. I, II, and III only
    N c. II, III, and IV only
    Y d. III, IV, and V only

3704: After a person has been revived by artificial respiration, he should be __________.

    N a. walked around until he is back to normal
    N b. given several shots of whiskey
    Y c. kept lying down and warm
    N d. allowed to do as he wishes

3735: Which procedure should be followed when individuals are rescued in cold climates and suffer from hypothermia?

    N a. Give them brandy or other alcoholic stimulation to promote a return to normal body temperature.
    Y b. Move them to a warm room to gradually raise their body temperature.
    N c. Keep them moving to stimulate circulation to raise their body temperature.
    N d. Immerse them in a hot bath to rapidly raise their body temperature.

3796: Which of the following steps should normally be taken first by those who have boarded a liferaft in an emergency situation?

    N a. Ration food and water supplies
    Y b. Search for survivors
    N c. Determine position and closest point of land
    N d. Check pyrotechnic supplies

3930: You have abandoned your vessel. You are in a liferaft and have cleared away from your vessel. One of your FIRST actions should be to __________.

    N a. take measures to maintain morale
    N b. prepare and use radio equipment
    N c. identify the person in charge of liferaft
    Y d. search for survivors

4031: The DEEP DRILLER, at 60.0 feet draft in sea water, has VM = 974,441 foot-long tons, and FSMT = 18,732 foot-long tons. What is the metacentric height corrected for transverse free surface effects?

    N a. 5.66 feet
    N b. 7.37 feet
    Y c. 8.02 feet
    N d. 54.82 feet

4230: You are loading in a port subject to the tropical load line mark and bound for a port subject to the winter load line mark. You will enter the summer zone after steaming six days. You will enter the winter zone after an additional three days. You will consume 28 tons of fuel, water, and stores per day. The hydrometer reading at the loading pier is 1.020, and the average TPI is 46. What is the minimum freeboard required at the start of the voyage? (Get Table Data)

    N a. 61.4 inches
    Y b. 64.5 inches
    N c. 70.6 inches
    N d. 77.5 inches

4336: The SS AMERICAN MARINER has on board 5486 tons of cargo with an LCG-FP of 277.84 feet. See the distribution of the cargo to be loaded. Use the white pages of The Stability Data Reference Book to determine the final LCG-FP of the cargo. ST-0160

    N a. LCG-FP 271.2 feet
    N b. LCG-FP 272.1 feet
    Y c. LCG-FP 273.6 feet
    N d. LCG-FP 274.6 feet

4355: If the maximum leg penetration of the COASTAL DRILLER is 75 feet, the water depth value in the Allowable Wind and Wave Charts must be increased by __________.

    N a. 75 feet
    Y b. 50 feet
    N c. 25 feet
    N d. 0 feet

4355: If the maximum leg penetration of the COASTAL DRILLER is 75 feet, the water depth value in the Allowable Wind and Wave Charts must be increased by __________.

    N a. 75 feet
    Y b. 50 feet
    N c. 25 feet
    N d. 0 feet

4757: Because there is a possibility of fuel oil being discharged overboard from a full fuel oil tank, it is decided to transfer 25 kips from tank #14 to tank #13. See COASTAL DRILLER Sample Load Form #1 (Rig Move). What would be the change in longitudinal free surface moments?

    N a. 1492 ft-kips increase
    N b. 1034 ft-kips increase
    Y c. 674 ft-kips increase
    N d. 404 ft-kips increase

5157: A MODU displacing 10,000 tons uses its crane to lift a 20 ton load, already aboard, to a height of 5 feet above the deck. When lifting, the head of the crane boom is 50 feet above the load. What is the change in KG?

    N a. No change
    Y b. 0.1 foot
    N c. 0.2 foot
    N d. 1.0 foot

5195: The DEEP DRILLER is under tow at a 20 foot draft. The rig motions are close to exceeding the limits for critical pitch and roll. The rig is also experiencing occasional pounding on the horizontal braces. In this situation you should __________.

    Y a. ballast down to a 45 foot draft and check vessel motions
    N b. wait until pitch and roll exceed the limits before ballasting down
    N c. ballast up to a 15 foot draft and check vessel motions
    N d. shorten the tow wire for a smoother tow

5385: While preloading, the COASTAL DRILLER has a total weight of 21,401 kips. The LM are 2,560,416 ft-kips, and the TM are -6,206 ft-kips. What is the starboard leg reaction?

    Y a. 7,099 kips
    N b. 7,134 kips
    N c. 7,151 kips
    N d. 7,203 kips

5533: Connecting elements of a mooring system should be fabricated from __________.

    N a. cast iron
    Y b. forged steel
    N c. stainless steel
    N d. cast steel

5567: What is the most important difference between the bow type anchor shackle and the D-type anchor shackle?

    N a. The bow type shackle provides a superior connection.
    N b. The D-type shackle is weaker than the bow type.
    Y c. The bow type shackle is weaker than the D-type.
    N d. The D-type shackle provides an inferior connection.

5568: You are tending the lifeline of a man who entered a compartment using a breathing apparatus. How many tugs on the lifeline indicate the man should back out?

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

5814: Your drafts are: FWD 18'-03", AFT 21'-09". What is the KM based on the tables in the blue pages of the Stability Data Reference Book?

    N a. 25.2 feet
    Y b. 25.6 feet
    N c. 25.9 feet
    N d. 26.3 feet

6023: On a MODU, an extinguisher with 15 lbs. of CO2 or 10 lbs. of dry chemical is a size __________.

    N a. I
    Y b. II
    N c. III
    N d. IV

6772: Your drafts are: FWD 23'-03", AFT 27'-01". Use the blue pages of the Stability Data Reference Book to determine the vessels displacement if you are in salt water.

    N a. 12,750 tons
    N b. 12,900 tons
    Y c. 13,150 tons
    N d. 13,250 tons

6901: In the event of a casualty to a MODU, who is responsible to make records available to the Coast Guard official authorized to investigate the casualty?

    N a. Officer in Charge, Marine Inspection
    N b. The person who caused the casualty
    N c. The company man
    Y d. The owner

6915: When a MODU is involved in a casualty, the cost of property damage includes __________.

    Y a. the cost of labor and material to restore the property to the service condition which existed prior to the casualty
    N b. the loss of revenues while the unit is being repaired, up to a maximum of $50,000
    N c. the damage claims awarded to individuals or companies involved in the casualty, up to a maximum of $50,000
    N d. All of the above

6981: The emergency power system for the DEEP DRILLER should be placed in operation when the weather forecast predicts winds greater than 90 knots and when __________.

    Y a. evacuating the unit
    N b. ballasting
    N c. deballasting
    N d. unexpected list and trim exist

7581: For a given displacement, the righting arm has its maximum value when __________.

    Y a. KG is minimum
    N b. angle of inclination is a maximum
    N c. small-angle stability applies
    N d. KM is a minimum

8848: Enclosed lifeboats which have been afloat over a long period of time require __________.

    N a. frequent opening of hatches to permit entry of fresh air
    Y b. regular checks of bilge levels
    N c. use of ear plugs to dampen engine noise
    N d. frequent flushing of the water spray system with fresh water

8893: AMVER is a system which provides __________.

    N a. satellite communications
    N b. navigational information
    N c. weather information
    Y d. position reporting service

8893: AMVER is a system which provides __________.

    N a. satellite communications
    N b. navigational information
    N c. weather information
    Y d. position reporting service

9661: In a fixed CO2 extinguishing system where provision is made for the release of CO2 by operation of a remote control, provision shall also be made for releasing the CO2 __________.

    N a. from inside the engine room
    N b. from the bridge
    N c. from the cargo control station
    Y d. at the cylinder location