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.


128: A seaman has a small, gaping laceration of the arm that is not bleeding excessively. What can be done as an alternative to suturing to close the wound?


204: When signaling by flashing light, a correctly received repetition of a signal is acknowledged by the signal __________.


236: What is the maximum number of sleeping accommodations a barge may have before it is required to have fire pumps, hydrants, hose, and nozzles installed?


447: According to the "Vessel Bridge-to-Bridge Radiotelephone Act", what is NOT required in the radiotelephone log?

    N a. Distress and alarm signals transmitted or intercepted
    N b. Times of beginning and end of watch period
    Y c. Routine navigational traffic
    N d. Daily statement about the condition of the required radiotelephone equipment

595: How long shall the operator of a vessel employed in the transferring of oil to other vessels keep the Declaration of Inspection of those transfers?

    N a. 1 week from date of signature
    N b. 2 weeks from date of signature
    Y c. 1 month from date of signature
    N d. 6 months from date of signature

634: You are fighting a fire in a watertight compartment using hoses and salt water. Stability may be reduced because of __________.

    N a. progressive downflooding
    N b. reduction of water in the storage tanks
    Y c. increase in free surface which reduces the metacentric height
    N d. reduction of KG to the minimum allowable

785: 33 CFR 156 deals with matters concerning __________.

    Y a. oil and hazardous material transfer operations
    N b. vessel construction and design
    N c. operation of nautical school ships
    N d. lifesaving and firefighting equipment

945: The color of rockets, shells, or rocket parachute flares used to indicate that the vessel is in distress and requires immediate assistance is __________.

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

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

1197: A squeeze-grip type carbon-dioxide portable fire- extinguisher has been partially discharged. It should be __________.

    N a. replaced in its proper location if weight loss is no more than 15%
    N b. replaced in its proper location if weight loss is no more than 25%
    N c. replaced in its proper location regardless of weight
    Y d. labeled empty and recharged as soon as possible

1319: Where should muster lists be posted?

    N a. In crew's accommodation spaces
    N b. On the navigating bridge
    N c. In the engine room
    Y d. All of the above

1435: After the initial cleaning of flue gas in an inert gas system the gas is passed through what device for final cleaning?

    N a. Scrubber
    Y b. Demister
    N c. Deck water seal
    N d. Final filter

1647: Electrical wiring on all "T-Boats" must be __________.

    N a. concealed to prevent mechanical damage
    N b. concealed so the boat can be maintained more easily
    Y c. protected from the weather
    N d. in an accessible place behind the ceiling

1732: The blowers of an inert gas generation system aboard a tanker, will be automatically secured if __________.

    N a. normal water supply at the water seal is lost
    N b. the temperature of the inert gas being delivered to the cargo tanks is more than 150°F
    N c. the cooling water supply to the scrubbers is lost
    Y d. all of the above

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

1811: What should be your FIRST action if you discover a fire aboard ship?

    Y a. Sound the alarm.
    N b. Attempt to put out the fire.
    N c. Confine it by closing doors, ports, vents, etc.
    N d. Call the Master.

1869: The three corners of the main sail are called __________. (D002SL )

    N a. head, fore, and aft
    N b. luff, leech, and spar
    N c. headboard, foot, and tail
    Y d. head, tack, and clew

2043: How does a coast radio station communicating by HF radio normally identify itself?

    N a. By its subscriber number
    Y b. By its call sign
    N c. By its MMSI
    N d. By its MID

2061: Where would you find the "call sign" or "call letters" of the radio station on your rig?

    N a. In the rig safety manual
    N b. On the Certificate of Inspection
    Y c. On the Ship Station License
    N d. On the rig Watch Bill

2156: The flammable limits of gasoline are 1.3 to 7.6 percent volume of the air. You are testing a tank that contained gasoline by using a combustible gas indicator. Under testing, the tank sample registered 55 on the instrument's dial. What is the concentration of flammable gases?

    Y a. 0.7%
    N b. 4.1%
    N c. 5.5%
    N d. 55%

2233: You are underway when a fire breaks out in the forward part of your vessel. If possible, you should __________.

    N a. call for assistance
    N b. abandon ship to windward
    N c. keep going at half speed
    Y d. put the vessel's stern into the wind

2558: Grade C liquids are those having a Reid vapor pressure of __________.

    Y a. 8-1/2 psi or less
    N b. 8-1/2 psi or more
    N c. 14 psi or less
    N d. 14 psi or more

2665: You are in the North Sea, which is a special area listed in ANNEX V of MARPOL. How many miles from land must you be to throw broken plywood dunnage over the side?

    N a. 6 nm
    N b. 12 nm
    N c. 25 nm
    Y d. Must be retained aboard

2832: Which fuel cannot be used for cooking on vessels carrying passengers for hire? (small passenger vessel regulations)

    N a. Kerosene
    N b. Coal
    N c. Wood
    Y d. Gasoline

2854: The sailing drafts are: FWD 14'-08", AFT 15'-06" and the GM is 4.8 feet. Use the information in Section 1, the blue pages, of the Stability Data Reference Book, to determine the available righting arm at 40° inclination.

    N a. 3.3 feet
    N b. 3.7 feet
    Y c. 4.3 feet
    N d. 5.4 feet

2885: The SS AMERICAN MARINER arrived in port with drafts of: FWD 28'-04", AFT 29'-10". Cargo was loaded and discharged as indicated. Use sheet 2 in the white pages of the Stability Data Reference Book to determine the final drafts.

    Y a. FWD 26'-04", AFT 30'-00"
    N b. FWD 26'-06", AFT 29'-10"
    N c. FWD 26'-08", AFT 29'-08"
    N d. FWD 26'-10", AFT 29'-06"

2905: Each emergency light must be marked with __________.

    Y a. the letter "E"
    N b. an arrow pointing to the nearest exit
    N c. a no-smoking symbol
    N d. the word "DANGER"

2928: It is recommended that drip collectors required on all updraft carburetors be drained by __________. (small passenger vessel regulations)

    Y a. a device to automatically return all drip to the engine air intakes
    N b. no means whatsoever
    N c. a separate pipe leading to the bilges
    N d. a pump leading to a point outside the hull

3057: Each buoyant work vest on an OSV must be __________.

    Y a. Coast Guard Approved
    N b. marked with the name of the unit
    N c. equipped with a waterlight
    N d. All of the above

3165: The wooden plug inserted in the vent of a damaged tank of a MODU should be removed in case it is decided to __________.

    Y a. pump from the damaged tank
    N b. fight a fire
    N c. abandon the rig
    N d. use the crossover system

3230: Which statement is TRUE concerning a power driven fire pump on board a small passenger vessel?

    N a. The hand fire pump shall be located adjacent to the main engine spaces.
    N b. It shall be of at least 2 gallons per minute capacity.
    N c. It shall be painted red.
    Y d. It may also serve as a bilge pump.

3355: The sea painter of an inflatable liferaft should be __________.

    N a. free running on deck
    N b. faked out next to the case
    Y c. secured to a permanent object on deck via a weak link
    N d. stowed near the raft

3377: The DEEP DRILLER at a draft of 58.0 feet loads 68.94 long tons of ballast. What is the new draft?

    N a. 52.0 feet
    N b. 57.5 feet
    Y c. 58.5 feet
    N d. 64.0 feet

3418: Your 600 GT vessel must carry a line-throwing appliance if it is certificated for __________.

    N a. river service
    N b. Great Lakes service
    Y c. coastwise service
    N d. None of the above

3552: You are communicating by radiotelephone using the International Code of Signals. What is the correct method of sending the group 1.3?

    N a. "Wun point tree"
    N b. "Unaone point tercetree"
    Y c. "Unaone decimal terrathree"
    N d. "One decimal three"

3745: In reviving a person who has been overcome by gas fumes, what would you AVOID doing?

    Y a. Giving stimulants
    N b. Prompt removal of the patient from the suffocating atmosphere
    N c. Applying artificial respiration and massage
    N d. Keeping the patient warm and comfortable

3754: First aid means __________.

    N a. medical treatment of accident
    N b. setting of broken bones
    Y c. emergency treatment at the scene of the injury
    N d. dosage of medications

3824: After abandoning a vessel, water consumed within the first 24 hours __________.

    Y a. will pass through the body with very little being absorbed by the system
    N b. will help prevent fatigue
    N c. will quench thirst for only two hours
    N d. help prevent seasickness

3886: Which type EPIRB must each ocean-going OSV carry?

    N a. Class A
    N b. Class B
    N c. Class C
    Y d. Category I

4242: A certificated lifeboatman assigned to command the lifeboat should __________.

    N a. be the first individual to board the craft
    N b. drain the hydraulic pressure before lowering the craft
    Y c. have a list of the persons assigned to the lifeboat
    N d. All of the above

4463: The COASTAL DRILLER's ability to meet the damage stability criteria depends on maintaining a watertight integrity, KGL and KGT less than maximum allowed, level attitude, and displacement less than __________.

    N a. 11,777 kips
    N b. 13,158 kips
    Y c. 14,158 kips
    N d. 17,280 kips

5232: Fusible-link fire dampers are operated by __________.

    N a. a mechanical arm outside the vent duct
    N b. electrical controls on the bridge
    Y c. the heat of a fire melting the link
    N d. a break-glass and pull-cable system

5281: The DEEP DRILLER suffers minor flooding of the port pump room while in transit. If both port bilge pumps fail to dewater the pump room, you may __________.

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

5463: A common class of wire rope used for mooring is the 6x19 class. What does the 6 represent?

    N a. Factor of safety
    N b. Number of wires per strand
    Y c. Number of strands per wire rope
    N d. Number of wires in the core

5521: Prior to magnetic particle inspection of anchor chain, the chain should be __________.

    N a. degaussed
    N b. demagnetized
    N c. soaked
    Y d. sandblasted

6276: Your drafts are: FWD 17'-09", AFT 18'-03". Use the blue pages of the Stability Data Reference Book to determine the location of the center of flotation relative to amidships.

    N a. 5.6 feet forward
    Y b. 5.1 feet forward
    N c. at the center of flotation
    N d. 0.8 foot aft

6308: 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
    N c. remain on course but decrease speed
    Y d. change course and put the stern to the wind

6633: For a MODU not on an international voyage, an approved substitute for an impulse projected rocket-type line throwing appliance is a __________.

    N a. spring loaded line thrower
    N b. hand thrown buoyant line
    Y c. shoulder-type line throwing gun
    N d. heaving line

6823: The Master or person in charge of a MODU is required to log __________.

    Y a. the date and hour of each fire drill
    N b. the names of all persons on board
    N c. only casualties which occur while underway
    N d. every event occurring on board

6941: On offshore drilling units, any reports of a casualty that are made are required to be retained on board for a period of at least __________.

    Y a. 3 months
    N b. 6 months
    N c. 12 months
    N d. 24 months

7415: What is the spoken emergency signal for a "man overboard" on the VHF radio?

    N a. Man Overboard
    N b. Security
    N c. Mayday
    Y d. Pan-Pan

7703: The average of the forward and after drafts is the __________.

    Y a. mean draft
    N b. true mean draft
    N c. mean of the calculated drafts
    N d. draft at the center of flotation

8347: All diesel engines are classified as __________.

    N a. four cycle
    Y b. compression ignition
    N c. vacuum ignition
    N d. external combustion

8375: Maintaining good working order of fuel pumps and injectors in auxiliary diesel engines requires the use of __________.

    N a. fuel/water separators
    N b. day tanks
    N c. an injector test stand
    Y d. fuel filters

8375: Maintaining good working order of fuel pumps and injectors in auxiliary diesel engines requires the use of __________.

    N a. fuel/water separators
    N b. day tanks
    N c. an injector test stand
    Y d. fuel filters

8681: The DEEP DRILLER, while loaded as shown in the Sample Load Form #5, loads 275.8 long tons. The resulting trim by the stern is 3 feet and list to port is 2 feet. What is the draft at the starboard aft draft mark?

    N a. 44 feet 6 inches
    N b. 47 feet 0 inches
    Y c. 47 feet 6 inches
    N d. 48 feet 6 inches

8688: Life floats must be equipped with __________. (small passenger vessel regulations)

    N a. a sea anchor
    N b. a signal mirror
    N c. an EPIRB
    Y d. paddles

9105: Each ventilation system for an enclosed classified location on a MODU must provide a complete change of air every __________.

    N a. 3 minutes
    Y b. 5 minutes
    N c. 7 minutes
    N d. 10 minutes

9193: Drinking salt water will __________.

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

9652: When pilot cylinder pressure is used as a means to release the CO2 from a fixed fire extinguishing system consisting of four storage cylinders, the number of pilot cylinders shall be at least __________.

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