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.


70: What represents the center of gravity? (D001SA )


255: You are towing a 1000 gross ton gasoline tank barge. Regulations say that cargo tank hatches, ullage holes, and Butterworth plates may remain open without flame screens ONLY __________.


275: When cleaning up an oil spill in U.S. waters you must obtain the approval of the Federal On-Scene Coordinator before using __________.


313: Kapok life jackets should NOT be __________.

    N a. stowed near open flame or where smoking is permitted
    N b. used as seats, pillows, or foot rests
    N c. left on open decks
    Y d. All of the above

313: Kapok life jackets should NOT be __________.

    N a. stowed near open flame or where smoking is permitted
    N b. used as seats, pillows, or foot rests
    N c. left on open decks
    Y d. All of the above

485: Cargo hose carried on tank vessels must be designed to withstand the pressure of the shutoff head of the cargo pump or pump relief valve setting, but in no case should it be less than __________.

    N a. 100 psi
    Y b. 150 psi
    N c. 200 psi
    N d. 250 psi

550: The normal tendency for a loaded tanker is to __________.

    N a. hog
    Y b. sag
    N c. have a permanent list
    N d. be very tender

788: Fires of which class would most likely occur in the engine room of a vessel?

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

834: After sending a message describing the symptoms of an ill crew member, you receive a message containing the code MRL. This means "_______".

    N a. Apply ice-cold compress and renew every 4 hours
    Y b. Commence artificial respiration immediately
    N c. Give enema
    N d. Pass catheter into bladder

877: A marine chemist issues gas free certificates and is certified by the __________.

    N a. Mine Safety Appliance Association
    N b. American Chemical Society
    N c. Marine Chemists Association
    Y d. National Fire Protection Association

899: EXCEPT when suffering from a head or chest injury a patient in shock should be placed in which position?

    N a. Head up and feet down
    Y b. Head down and feet up
    N c. Flat on back with head and feet elevated
    N d. Arms above the head

1059: Provided every effort is made to preserve body moisture content by avoiding perspiration, how long is it normally possible to survive without water?

    N a. Up to 3 days
    Y b. 8 to 14 days
    N c. 15 to 20 days
    N d. 25 to 30 days

1103: A vessel is "listed" when it is __________.

    Y a. inclined due to an off-center weight
    N b. inclined due to the wind
    N c. down by the head
    N d. down by the stern

1111: On small passenger vessels, outlets in fuel lines are permitted __________.

    N a. to tap fuel for cleaning parts and engine wash down
    N b. for inspection purposes only
    N c. to bleed fuel lines
    Y d. under no circumstances in gasoline installations

1139: You are at the helm of a sloop-rigged sailing vessel under sail on the port tack, on a beam reach, with all appropriate sails set and properly trimmed. You are instructed to "head up quickly". To utilize your sails to assist with the turn, you should __________.

    N a. slack the main sheet
    N b. slack the main outhaul
    N c. trim the foreguy
    Y d. slack the jib sheet

1152: Hand tillers are only accepted as an auxiliary means of steering if __________.

    N a. they are at least 6 feet long
    N b. they are not operated through a reduction gear
    Y c. they are found satisfactory by the cognizant OCMI
    N d. Both A and C above

1298: If a powdered aluminum fire is being fought, the correct extinguishing agent would be __________.

    Y a. dry powder
    N b. water fog
    N c. CO2
    N d. steam

1449: A vessel to which Annex V to MARPOL 73/78 applies is located 10 nautical miles from the nearest land. Which type of garbage is prohibited from being discharged?

    Y a. Food waste, not comminuted or ground
    N b. Rags ground to less than 1"
    N c. Paper ground to less than 1"
    N d. None of the above

1476: Your vessel has 3 lifeboats on each side. The aftermost boat on the starboard side is designated as boat number __________.

    N a. 6
    Y b. 5
    N c. 3
    N d. 3 STARBOARD

1741: The maximum allowable oxygen content within the ship's cargo tanks, inert gas piping and the vapor recovery system is __________.

    N a. 4%
    N b. 5%
    Y c. 8%
    N d. 10%

1790: How long must GMDSS Radio Logs be retained by the licensee when they relate to a distress situation or disaster?

    N a. 6 months
    N b. 1 year
    N c. 2 years
    Y d. 3 years

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

1982: Which system may be useful for messages, such as local storm warnings or a shore-to-ship distress alert, for which it is inappropriate to alert all ships in the satellite coverage area?

    N a. NAVTEX
    Y b. EGC
    N c. AMVER
    N d. DSC

2266: Which fire extinguishing agent can NOT be used on an ethylenediamine?

    Y a. Water foam
    N b. Dry chemical powder
    N c. Water fog
    N d. Alcohol foam

2332: The amount of LFG that may be loaded into a given tank is determined by __________.

    N a. checking the loading sheet
    N b. loading to within 1 percent of outage
    N c. loading to within 10 percent of the safety relief valve setting
    Y d. filling to the maximum level indicated on the liquid level gauging device

2425: Every seaman injured on a fishing vessel must report the injury to the Master, individual in charge, or other agent of the employer __________.

    N a. before the end of the voyage
    N b. no later than 24 hours after the vessel docks
    Y c. no later than 7 days after the injury occurred
    N d. only if the injury prevents him from working

2577: The radiotelephone safety signal is __________.

    Y a. "Securite" repeated 3 times
    N b. "Safety" repeated 3 times
    N c. "Pan Pan" repeated 3 times
    N d. "Securite Securite" repeated 3 times

2654: Name one major advantage of transporting gas under refrigeration.

    N a. It increases its volume.
    Y b. It reduces its volume.
    N c. It has less product per volume.
    N d. None of the above

2701: Compared to internal structural plating, the exterior hull plating on a MODU is usually __________.

    Y a. stronger
    N b. thinner
    N c. more corrosion resistant
    N d. a lower grade steel

2705: The SS AMERICAN MARINER has the liquid loading shown. Use the white pages of The Stability Data Reference Book to determine the KG of the liquid load. ST-0077

    Y a. 4.0 feet
    N b. 5.6 feet
    N c. 6.0 feet
    N d. 6.8 feet

2774: 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-0080

    N a. Available GM 3.8 ft
    N b. Available GM 3.5 ft
    Y c. Available GM 3.2 ft
    N d. Available GM 2.9 ft

2785: The intact volume above the waterline of a floating MODU is __________.

    N a. displacement volume
    Y b. reserve buoyancy
    N c. gross tonnage
    N d. net tonnage

2908: How many months after its expiration date may a Coast Guard license be renewed without retaking the complete exam?

    N a. 1 month
    N b. 6 months
    Y c. 12 months
    N d. 24 months

2959: Which commodity would be regulated by subchapter D, Rules and Regulations for Tank Vessels?

    Y a. Asphalt
    N b. Vinyl Chloride
    N c. Benzene
    N d. All of the above

3004: Using the information in Section 1, the blue pages, of the Stability Data Reference Book, determine the danger angle for permanent list if the KG is 23.7 feet and the drafts are: FWD 28'-00", AFT 28'-06".

    N a. 16°
    Y b. 21°
    N c. 41°
    N d. 56°

3189: If a gasoline engine turns over freely but will not start, the cause is generally __________.

    Y a. a defective ignition system
    N b. low lube oil level
    N c. weak valve springs
    N d. too heavy a load

3195: 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-0113

    N a. FWD 18'-05", AFT 21'-05"
    N b. FWD 18'-00", AFT 21'-10"
    N c. FWD 18'-06", AFT 22'-01"
    Y d. FWD 17'-10", AFT 22'-00"

3245: 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-0115

    Y a. FWD 25'-02", AFT 29'-10"
    N b. FWD 25'-06", AFT 29'-06"
    N c. FWD 27'-10", AFT 26'-02"
    N d. FWD 29'-11", AFT 25'-04"

3254: All uninspected motor vessels constructed after 25 April 1940, which use fuel with a flash point of 110°F (43°C) or less, shall have at least what number of ventilator ducts for the removal of explosive or flammable gases from every engine and fuel tank compartment? (Uninspected Vessel Regulations)

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

3301: A semisubmersible, while floating level, displaces 25,000 long tons. LCG is 2 feet forward of amidships. Bulk, weighing 300 long tons, is placed in P-tanks located 50 feet aft of amidships. What is the new LCG?

    N a. 1.43 feet forward of amidships
    Y b. 1.38 feet forward of amidships
    N c. 0.62 foot forward of amidships
    N d. 0.57 foot forward of amidships

3354: Backfire flame arrestors are installed on __________.

    N a. fuel tanks
    N b. spark plugs
    Y c. carburetors
    N d. distributors

3368: Your tow includes a barge carrying chlorine. Which special requirements must be observed?

    N a. The wing voids shall not be opened when underway.
    N b. You must post a deckhand to keep a special watch on this barge.
    Y c. A cargo information card for chlorine must be in the pilothouse.
    N d. All of the above

3583: The SS AMERICAN MARINER has the liquid loading shown. Use the white pages of The Stability Data Reference Book to determine the KG of the liquid load. ST-0142

    N a. 2.6 feet
    N b. 2.8 feet
    N c. 3.1 feet
    Y d. 4.3 feet

3614: While proceeding towards a distress site you hear the message "Seelonce Feenee" over the radiotelephone. Which action should you take?

    N a. Resume base course and speed because the distress situation is over.
    N b. Do not transmit over the radiotelephone.
    N c. Relay the initial distress message to the nearest shore station.
    Y d. Resume normal communications on the guarded frequency.

3762: The symptoms of a fractured back are __________.

    N a. leg cramps in the muscles in one or both legs
    N b. pain and uncontrolled jerking of the legs and arms
    N c. vomiting and involuntary urination or bowel movement
    Y d. pain at the site of the fracture and possible numbness or paralysis below the injury

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

4064: If you are the Master of a towing vessel whose only working radar no longer functions, what must you do?

    Y a. Notify the Captain of the Port (COTP) if you cannot repair it within 96 hours.
    N b. Notify the Officer in Charge of Marine Inspection (OCMI) if you cannot repair it within 48 hours.
    N c. Moor the vessel until it is repaired.
    N d. Anchor the vessel until it is repaired.

4115: The inspection of a 50 ft. vessel of 65 gross tons carrying more than twelve passengers on an international voyage is required by the Coast Guard once in every __________. (small passenger vessel regulations)

    N a. four years with a minimum of three reinspections during the four year period
    N b. three years with a minimum of two reinspections during the three year period
    N c. two years
    Y d. year

4243: The Cantilever Beam Load Chart for the COASTAL DRILLER shows the load limits in the hook, setback, conductor tension, and __________.

    N a. wind loads
    N b. wave loads
    N c. pipe rack loads
    Y d. rotary loads

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

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"

7341: If you know that the vessel you are about to call on the VHF radio maintains a radio watch on both the working and the calling frequencies, which frequency should you call on?

    N a. Calling frequency
    N b. Distress frequency
    N c. Urgency frequency
    Y d. Working frequency

7397: In evacuation from a MODU, an individual without the option of a survival craft or liferaft should enter the water on the leeward side, except when __________.

    N a. there is a rescue craft in the area
    Y b. there is hydrogen sulfide present
    N c. water temperature is below 40°F
    N d. a rigid survival craft is in the area

8151: Laying down drill pipe from the derrick of a semisubmersible on location reduces the __________.

    Y a. natural roll period
    N b. metacentric height
    N c. waterplane area
    N d. righting moment

8295: The DEEP DRILLER suffers minor flooding of the port pump room. If both port bilge pumps fail to dewater the pump room, you should use the __________.

    Y a. port drill water pump
    N b. port saltwater service pump
    N c. port ballast pumps
    N d. starboard ballast pumps and crossover system

8597: On offshore drilling units, the EPIRB on board is required to be tested __________.

    N a. daily
    N b. weekly
    Y c. monthly
    N d. yearly

8702: An oil fire is classified as class __________.

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

9455: The original equilibrium position is stable when __________.

    Y a. metacentric height is positive
    N b. metacentric radius is positive
    N c. KG exceeds maximum allowable limits
    N d. free surfaces are excessive

9573: A floating vessel will behave as if all of its weight is acting downward through the __________.

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