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.


21: Coast Guard regulations require that all of the following emergencies be covered at the periodic drills on a fishing vessel EXCEPT __________.


140: Which statement is TRUE of a stiff vessel?


554: When using the International Code of Signals to communicate, the end of a radiotelephone transmission is indicated by the signal __________.


792: What is an advantage of a dry chemical extinguisher as compared to a carbon dioxide extinguisher?

    N a. It has a greater duration.
    N b. It provides a heat shield for the operator.
    N c. It is nontoxic.
    Y d. It offers lasting, effective protection against burn-back.

880: A ship's forward draft is 22'-04" and its after draft is 23'-00". The draft amidships is 23'-04". This indicates a concentration of weight __________.

    N a. at the bow
    N b. in the lower holds
    Y c. amidships
    N d. at the ends

1198: Lead-acid batteries used aboard "T-Boats" must have terminal connections that are __________.

    N a. the spring slip style
    Y b. a permanent type
    N c. located so as to be easily greased
    N d. temporarily clamped on the top of the battery

1372: It is necessary to secure the forced ventilation to a compartment where there is a fire to __________.

    N a. allow the exhaust fans to remove smoke
    N b. extinguish the fire by carbon monoxide smothering
    Y c. prevent additional oxygen from reaching the fire
    N d. protect fire fighting personnel from smoke

1392: Except in rare cases, it is impossible to extinguish a shipboard fire by __________.

    N a. removing the heat
    N b. removing the oxygen
    Y c. removing the fuel
    N d. interrupting the chain reaction

1481: You are reading the draft marks in illustration D032DG. The water level is at the top of number 8. What is the draft? (D032DG )

    N a. 7'-09"
    N b. 8'-00"
    N c. 8'-03"
    Y d. 8'-06"

1496: Your vessel has been holed in #1 hold and partially flooded. The hole is plugged against further flooding. In calculating the effect of the flooding on your transverse stability, you should use which method?

    N a. Compartment standard method
    N b. Lost buoyancy method
    N c. Factor of subdivision method
    Y d. Added weight method

1571: A Halon 1301 cylinder is periodically tested for weight loss and pressure loss. It must be recharged if it has lost more than what minimum percentage of its weight?

    N a. 3%
    Y b. 5%
    N c. 10%
    N d. 15%

1685: A storm is forecast for the area where your vessel is moored. For its safety you should put __________.

    N a. more slack in the mooring lines
    N b. a strain on the mooring lines
    Y c. chafing gear on the mooring lines
    N d. grease on the mooring lines

1762: You are operating a liftboat. When jacking down and free of the bottom you should __________.

    N a. raise one leg at a time
    N b. not be concerned about any list
    Y c. raise all legs simultaneously
    N d. have the crane standing upright

1773: What must Inland vessels of 100 GT and over be fitted with for oily mixtures?

    N a. A fixed system to discharge the slops overboard
    Y b. A fixed system to discharge oily mixtures to a reception facility
    N c. A portable system to discharge the slops overboard
    N d. A portable system to discharge oily mixtures to a reception facility

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

1990: What product is considered a noxious liquid substance for regulatory purposes?

    N a. Acetonitrile
    N b. Molten sulfur
    Y c. Dodecanol
    N d. Soybean oil

2131: When a person is in shock, their skin will be __________.

    N a. warm and dry
    N b. warm and damp
    N c. cold and dry
    Y d. cold and damp

2288: A major health hazard of the product tert-butylamine is that it______.

    N a. can be absorbed through the skin
    Y b. causes irreversible damage to eye tissue
    N c. is a very unstable product
    N d. All of the above

2296: Regulations require that cargo pumps in tank vessels carrying grade D liquid cargo shall be isolated from sources of vapor ignition by __________.

    N a. cofferdams
    Y b. gastight bulkheads
    N c. passageways or living quarters
    N d. general cargo spaces

2363: Use the material in Section 1, the blue pages, of the Stability Data Reference Book. If the KG is 22.0 feet, and the drafts are: FWD 23'-06", AFT 24'-03"; at what angle will the vessel lose positive stability?

    N a. 76°
    N b. 84°
    N c. 89°
    Y d. 98°

2459: A virtual rise in the center of gravity may be caused by __________.

    N a. filling a partially filled tank
    Y b. using fuel from a pressed fuel tank
    N c. emptying a partially filled tank
    N d. transferring ballast from the forepeak to the after peak

2649: Vinyl chloride reacts dangerously with __________.

    N a. alkalies
    Y b. concentrated nitric acid
    N c. saltwater
    N d. organic acids

2673: A MODU having continuous closely spaced transverse strength members is __________.

    N a. longitudinally framed
    Y b. transversely framed
    N c. cellular framed
    N d. web framed

2723: The prohibition against exceeding the load line draft may be considered temporarily not applicable when __________.

    N a. column-stabilized units are operating in water depths over 600 feet
    N b. column-stabilized units are operating in waters outside U.S. jurisdiction
    Y c. bottom supported units are being raised or lowered to the sea bed
    N d. bottom supported units are being towed on a move of less than 12 hours

2920: You have loaded a deck cargo, and the vessel has assumed an 8° list due to negative GM. Your salt water drafts are: FWD 16'-02", AFT 16'-06". If you then load 1200 tons of cargo in the lower holds (VCG 12 feet) and take on 624 tons of bunkers (VCG 2.5 feet), what is the final GM? (Use the reference material in Section 1, the blue pages, of the Stability Data Reference Book)

    Y a. 2.0 feet
    N b. 2.6 feet
    N c. 3.0 feet
    N d. 3.4 feet

2942: Vessels in ocean service shall carry __________. (small passenger vessel regulations)

    N a. life floats for 50% of all persons on board
    N b. buoyant apparatus for all persons on board
    Y c. sufficient inflatable buoyant apparatus for all persons on board
    N d. life jackets for 50% of all persons on board

2975: A quick and rapid motion of a MODU in a seaway is an indication of a(n) __________.

    Y a. large GM
    N b. high center of gravity
    N c. excessive free surface
    N d. small GZ

2986: What must be mounted at a small passenger vessel's operating station for use by the Master and crew?

    Y a. Emergency Instructions
    N b. A tide table for the area
    N c. Instructions on artificial respiration
    N d. The location of the first aid kit

3074: Your sailing drafts are: FWD 17'-07", AFT 18'-03" and the GM is 2.8 feet. What will be the angle of list if the #4 starboard double bottom (capacity 141 tons, VCG 2.6 feet, and 23.8 feet off the centerline) is filled with saltwater? (Use the data in Section 1, the blue pages, of the Stability Data Reference Book)

    N a. 6°
    Y b. 8°
    N c. 10°
    N d. 12°

3099: Which type of power may a towing vessel use to drive the cargo pumps of a tank barge?

    N a. Only air
    N b. Only steam
    N c. Air or steam only
    Y d. Steam, air, or electricity

3126: A cargo information card does NOT contain __________.

    N a. instructions for the safe handling of the cargo
    N b. appearance and odor characteristics of the cargo
    N c. precautions to be observed in case of a spill or leak
    Y d. duties of the person in charge during the transfer of cargo

3223: After 1 September 1992, in the North Pacific area, a documented 75-foot fishing vessel operating in cold waters 25 miles off the coast must have at least a(n) __________.

    N a. buoyant cushion for each person on board
    Y b. inflatable liferaft with a SOLAS pack
    N c. inflatable buoyant apparatus with EPIRB attached
    N d. approved rescue boat

3314: Which device is required to be installed under the carburetor of a gasoline engine? (small passenger vessel regulations)

    N a. Box of sawdust
    Y b. Drip collector
    N c. Vent
    N d. Flame arrestor ONLY

3342: How many type B-II hand portable fire extinguishers are required in the machinery space of an uninspected motor vessel with 1,400 BHP? (Uninspected Vessel Regulations)

    Y a. 2
    N b. 3
    N c. 4
    N d. 5

3439: An inflatable liferaft should be manually released from its cradle by __________.

    N a. cutting the straps that enclose the container
    N b. removing the rubber sealing strip from the container
    N c. loosening the turnbuckle on the securing strap
    Y d. pushing the button on the hydrostatic release

3462: A rigid lifesaving device only designed for survivors to hold on to while in the water is known as a __________.

    N a. liferaft
    N b. life float
    N c. life preserver
    Y d. buoyant apparatus

3608: A fire has broken out on the stern of your vessel. You should maneuver your vessel so the wind __________.

    Y a. comes over the bow
    N b. blows the fire back toward the vessel
    N c. comes over the stern
    N d. comes over either beam

3611: Each life jacket light that has a non-replaceable power source must be replaced __________.

    N a. every 6 months after initial installation
    N b. every 12 months after initial installation
    N c. every 24 months after initial installation
    Y d. on or before the expiration date of the power source

3650: If your passenger vessel is fitted with a loudspeaker system, it must be tested at least once __________.

    Y a. every week
    N b. a day
    N c. every trip
    N d. a watch or once a trip, whichever is shorter

3651: Distress signals may be __________.

    N a. red flares
    N b. smoke signals
    N c. sound signals
    Y d. Any of the above

3664: The SS AMERICAN MARINER has drafts of: FWD 29'-04", AFT 30'-06". Use the white pages of the Stability Data Reference Book to determine the drafts if you ballast the forepeak with 101.6 tons of seawater.

    N a. FWD 29'-04.5", AFT 30'-07.5"
    N b. FWD 29'-07.6", AFT 30'-05.0"
    N c. FWD 29'-04.5", AFT 30'-10.0"
    Y d. FWD 30'-00.8", AFT 30'-01.0"

3810: If help has not arrived in 10-12 hours after having abandoned an OSV in a survival craft, you should __________.

    N a. go in one direction until the fuel runs out
    N b. plot course for the nearest land
    N c. take a vote on the direction in which to go
    Y d. shutdown the engines and put out the sea anchor

4133: The DEEP DRILLER is loaded as shown in the Sample Load Form #3 (Preparing to Drill). According to the deck load graph, how much additional deck load could be added to the unit?

    Y a. 526.87 long tons
    N b. 276.87 long tons
    N c. 241.50 long tons
    N d. 189.51 long tons

4144: Which of the following statements is FALSE concerning the proper procedure in handling a fire hose?

    N a. A 1½ inch hose should be deployed with a minimum of a nozzleman and hoseman.
    N b. The nozzleman should always hold the nozzle with one hand on top, to prevent kickback.
    N c. Back-up hosemen should be positioned wherever the hose makes a significant turn.
    Y d. The fire hose should be partially charged before deploying it from the fire station.

4687: What is the decrease in vertical moments for the Coastal Driller if 2.5 feet of drill water is discharged from a full drill water tank #23?

    N a. 3,464 ft-kips
    N b. 2,982 ft-kips
    Y c. 482 ft-kips
    N d. 161 ft-kips

4741: The COASTAL DRILLER is observed to be level at a draft of 10 feet 6 inches. At the same time, the calculated load form shows the displacement to be 13,445 kips. What is the weight of the missing load?

    N a. 46 kips
    N b. 84 kips
    N c. 189 kips
    Y d. 217 kips

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.

5574: 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-0181

    Y a. Available GM 2.8 ft
    N b. Available GM 3.2 ft
    N c. Available GM 3.5 ft
    N d. Available GM 3.8 ft

5931: If the charted water depth is 200 feet, the limits of service for the COASTAL DRILLER require an air gap of __________.

    N a. 35 feet
    N b. 32 feet
    Y c. 30 feet
    N d. 25 feet

6121: The inspection of portable extinguishers on a MODU must be __________.

    N a. accomplished by an authorized servicing representative
    Y b. recorded by the person in charge
    N c. completed every six months
    N d. All of the above

6455: Most drill ships and barges have a walled opening below the derrick, open to the water's surface and through which various drilling tools can pass down to the sea floor called a __________.

    Y a. moon pool
    N b. spider deck opening
    N c. pontoon
    N d. keyway

6594: How many B-II fire extinguishers must be in the machinery space of a 175-foot long fishing vessel propelled by engines with 2500 brake horsepower?

    N a. 2
    Y b. 3
    N c. 4
    N d. 5

6987: Severe airway burns can cause __________.

    N a. nausea
    N b. reddening of cheeks
    Y c. complete obstruction of respiratory passages
    N d. nosebleed

7431: What time of day would an SSB radio have the longest transmitting range?

    N a. Daylight before noon
    N b. At noon
    N c. Daylight after noon
    Y d. During darkness

7613: GM cannot be used as an indicator of stability at all angles of inclination because __________.

    Y a. M is not fixed at large angles
    N b. there is no M at large angles
    N c. G is not fixed at large angles
    N d. there is no G at large angles

7663: Subtracting KG from KM yields __________.

    N a. BM
    Y b. GM
    N c. GZ
    N d. KG

8481: A jack-up 180 feet in length with the LCF at 120 feet AF0 has a true mean draft (draft at LCF) of 10 feet. If the trim is 3 feet by the stern, what is the draft at the stern?

    N a. 8.0 feet
    N b. 9.0 feet
    Y c. 11.0 feet
    N d. 12.0 feet

9091: The outlet at a fire hydrant may be positioned anywhere from horizontal to pointing __________.

    N a. 45° upward
    N b. vertically upward
    Y c. vertically downward
    N d. all of the above

9303: When displacement increases, the free surface corrections for slack tanks __________.

    N a. increase
    Y b. decrease
    N c. are directly proportional
    N d. remain unchanged

9587: The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). What is the new transverse free surface correction (FSCT) if the entire contents of Salt Water Ballast Tanks 1P and 1S are discharged?

    Y a. 0.46 foot
    N b. 0.71 foot
    N c. 1.08 feet
    N d. 1.44 feet