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.


58: Changing rescuers while carrying out artificial respiration should be done __________.


183: Which statement is TRUE concerning an inflatable liferaft?


197: Normally, potable water systems are connected directly to the __________.


221: Which statement about the free surface effect is TRUE?

    N a. It increases in direct proportion to the length of the tank times the breadth squared.
    Y b. It decreases at increased angles of heel due to pocketing when a tank is 90% full.
    N c. It decreases in direct proportion to increasing specific gravity of the liquid in the tank.
    N d. In practice, the correction is considered to be a virtual reduction of KG.

282: The difference in water spray pattern between the high-velocity tip and low-velocity applicator used with the all-purpose nozzle is due to __________.

    N a. a difference in water pressure
    Y b. the method of breaking up the water stream
    N c. the length of the applicator
    N d. All of the above

357: The operator of a vessel's radiotelephone must hold at least a __________.

    N a. third class radiotelegraph operator certificate
    Y b. restricted radiotelephone operator permit
    N c. general radiotelephone operator license
    N d. mates license

544: In radiotelephone communications, the prefix PAN-PAN indicates that __________.

    N a. a ship is threatened by grave and imminent danger and requests immediate assistance
    Y b. a calling station has an urgent message about the safety of a person
    N c. the message following the prefix will be about the safety of navigation
    N d. the message following is a meteorological warning

549: If a vessel takes a sudden, severe list or trim from an unknown cause, you should FIRST __________.

    Y a. determine the cause before taking countermeasures
    N b. assume the shift is due to off-center loading
    N c. counterflood
    N d. assume the cause is environmental forces

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

657: What is the normal operating power for ship-to-ship communications on channel 13?

    Y a. 1 watt or less
    N b. 5 watts
    N c. 10 watts
    N d. 20 watts

727: Under the "Vessel Bridge-to-Bridge Radiotelephone Act", failure of a vessel's radiotelephone equipment __________.

    N a. constitutes a violation of the Act
    N b. obligates the operator to moor or anchor the vessel immediately
    N c. requires immediate, emergency repairs
    Y d. does not, in itself, constitute a violation of the Act

820: The two points that act together to trim a ship are the __________.

    N a. LCF and LCB
    Y b. LCG and LCB
    N c. metacenter and LCG
    N d. VCG and LCG

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

900: All of the following can be determined by use of a stabilogauge EXCEPT __________.

    N a. mean draft
    Y b. trim
    N c. displacement
    N d. deadweight

1005: Which signal should be used to send the group "Distance 750 nautical miles"?

    N a. D750
    N b. D750N
    Y c. R750
    N d. R750N

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

1321: How should the lifeboat sea painter be rigged?

    Y a. Secured to the inboard side of a forward thwart and led inboard of the falls
    N b. Spliced into the ring on the stem post
    N c. Secured by a toggle to the stem post and led outboard of the falls
    N d. Secured by a toggle around the outboard side of a forward thwart

1612: Which action is routinely performed at the annual servicing and inspection of a dry-chemical cartridge-operated portable fire extinguisher?

    N a. Test the pressure gauge for correct reading.
    Y b. Weigh the cartridge.
    N c. Replace the dry chemical.
    N d. Pressure test the discharge hose.

1914: Your vessel displaces 728 tons and measures 138'L by 31'B. What is the reduction in GM due to free surface if the fish hold (36'L by 29'B by 9'D) is filled with 3.6 feet of water? (Each foot of water weighs 29.8 tons)

    N a. 2.35 feet
    Y b. 2.50 feet
    N c. 2.72 feet
    N d. 2.96 feet

2007: The bottom of the mast rests on the __________.

    N a. foot plate
    N b. sole plate
    N c. hounds
    Y d. mast step

2212: In order to maintain speed while changing course from a close reach to a broad reach, the sails should be __________.

    N a. lowered
    N b. reefed
    N c. hauled in
    Y d. eased out

2223: Knowing the compass heading that is 90° to the side of a MODU will enable the operator of a survival craft to initially steer __________.

    N a. into the wind
    Y b. away in fire and smoke
    N c. directly to the standby boat
    N d. directly to the nearest land

2240: What is classified as a combustible liquid?

    N a. Acetaldehyde
    N b. Ethyl alcohol
    N c. Carbon tetrachloride
    Y d. Tetraethylene glycol

2246: What would be classified as grade "C" petroleum product?

    N a. Reid vapor pressure of 14 psia, flash point of 60°F.
    N b. Reid vapor pressure of 7 psia, flash point of 85°F.
    Y c. Reid vapor pressure of 5 psia, flash point of 70°F.
    N d. Reid vapor pressure above 8 1/2 psia but less than 14 psia.

2362: A tankerman who permits or causes oil to go into a navigable waterway may be punished federally by __________.

    N a. fine
    N b. imprisonment
    N c. suspension or revocation of tankerman's document
    Y d. All of the above

2396: Your vessel's drafts are: FWD 17'-05", AFT 20'-01"; and the KG is 25.6 feet. What is the righting moment when the vessel is inclined to 45°? (Use the reference material in Section 1, the blue pages, of the Stability Data Reference Book)

    N a. 17,222 foot-tons
    Y b. 19,709 foot-tons
    N c. 21,137 foot-tons
    N d. 22,002 foot-tons

2542: Your vessel's drafts are: FWD 21'-08", AFT 24'-02". The LCG of the forepeak is 200 feet forward of amidships. How many tons of ballast must be pumped into the forepeak in order to have a drag of 15 inches? (Use the selected stability curves in Section 1, the blue pages, of the Stability Data Reference Book)

    N a. 72 tons
    N b. 77 tons
    Y c. 82 tons
    N d. 87 tons

2612: What is NOT listed as a synonym for crude oil in the Chemical Data Guide?

    N a. Rock oil
    N b. Mineral oil
    N c. Seneca oil
    Y d. Earth crude

2658: As a vessel changes course to starboard, the compass card in a magnetic compass __________.

    N a. first turns to starboard then counterclockwise to port
    N b. also turns to starboard
    N c. turns counterclockwise to port
    Y d. remains aligned with compass north

2677: 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-0075

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

2773: The required portable radio apparatus on an international voyage must be stowed in __________.

    N a. the Master's quarters
    N b. the ship's office
    Y c. the radio room, bridge, or protected location
    N d. an unlocked cabinet next to the Muster List ("Station Bill")

2799: One of the principal dangers inherent in liquefied petroleum gas is __________.

    N a. as it warms up it becomes heavier than air
    N b. the way it reacts with sea water
    N c. the strong odor it produces
    Y d. its low temperature causes frostbite or freezing

2851: Kevlar sails, when not in use, may be damaged if __________.

    N a. left in the sunlight
    N b. stowed wet
    Y c. folded frequently
    N d. washed with soap and water

3243: If there's a fire aboard your vessel, you should FIRST __________.

    N a. notify the Coast Guard
    N b. cut off air supply to the fire
    N c. have passengers put on life preservers
    Y d. sound the alarm

3298: Assuming that the recommended hatch loading sequence is followed, how many long tons of iron ore may be loaded through hatches 2, 6, & 10, while using a single belt loader, to arrive at a desired mean keel draft of 27'-07"? (use the Guidance Manual for Loading M.V. GRAND HAVEN)

    N a. 510 tons per hatch
    Y b. 530 tons per hatch
    N c. 590 tons per hatch
    N d. 610 tons per hatch

3376: Outlets in gasoline fuel lines are _____________,

    N a. permitted for drawing fuel samples
    N b. permitted for draining fuel from lines
    N c. permitted for bleeding air from lines
    Y d. prohibited

3493: The longitudinal distance between draft marks for the DEEP DRILLER is __________.

    N a. 122'-09"
    Y b. 164'-00"
    N c. 260'-00"
    N d. 260'-05"

3500: How should the letter "Z" be pronounced when spoken on the radiotelephone?

    N a. ZEE BR AH
    N b. ZEE ZE
    N c. ZE HE
    Y d. ZOO LOO

3562: The Master or person-in-charge of an OSV shall insure that each deck from which rescue boats are launched is __________.

    N a. surfaced with a nonskid texture
    N b. roped off to prevent unnecessary access
    Y c. kept clear of any obstructions that would interfere with launching
    N d. posted with a list of persons assigned to the rescue boat

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

3681: The DEEP DRILLER, while loaded as shown in the Sample Load Form #4 (Drilling), suffers damage to the port aft column below the waterline. Pumping from tank 8P and 9P is not sufficient to prevent increasing port list and stern down trim. You should consider counterflooding in tank __________.

    Y a. 1S
    N b. 1P
    N c. C2BS
    N d. 10S

3695: In storm conditions, when the environmental conditions are such that the DEEP DRILLER has disconnected the marine riser, the two leeward mooring lines should be __________.

    N a. tightened
    N b. slacked slightly
    Y c. completely slacked
    N d. adjusted to give the same line tensions as the windward lines

3781: What is the weight of barite in P-tank #4 of the DEEP DRILLER if the ullage is 3.4 feet?

    N a. 11.5 long tons
    N b. 16.6 long tons
    N c. 54.2 long tons
    Y d. 78.2 long tons

3883: Which vessel greater than 100 GT is NOT required to have an EPIRB.

    N a. A sailing vessel
    N b. A fishing vessel
    Y c. A non self-propelled vessel
    N d. A towing vessel

4357: In using the Allowable Wind and Wave Charts for the COASTAL DRILLER, which of the three leg reactions is required?

    N a. Minimum
    N b. Average
    Y c. Highest
    N d. Preloaded value

5098: The SS AMERICAN MARINER is ready to bunker with drafts of FWD 20'-04", AFT 23'-06". After all bunkers are on board, soundings indicate the tonnages shown. Use the white pages of The Stability Data Reference Book to determine the free surface correction. ST-0172

    N a. 0.62 foot
    Y b. 0.80 foot
    N c. 0.85 foot
    N d. 0.99 foot

5557: The holding power of an anchor is the __________.

    N a. maximum sustained vertical load an anchor will resist before dragging
    Y b. maximum sustained horizontal load an anchor will resist before dragging
    N c. maximum sustained vertical load an anchor will resist before the mooring line breaks
    N d. maximum sustained horizontal load an anchor will resist before the mooring line breaks

5695: The DEEP DRILLER is loaded as shown in Sample Load Form #4, (Drilling). In preparing for approaching heavy weather, the four leeward mooring lines are slacked. These actions reduce the __________.

    Y a. natural pitch period
    N b. metacentric height
    N c. height of the righting arm
    N d. righting moment

5787: In storm conditions, with the wind and waves from the starboard bow of the DEEP DRILLER in 600 feet water depth, the offset is 8%. Completely slacking mooring lines 7 and 8 reduces the offset to __________.

    N a. 6.5%
    Y b. 5.0%
    N c. 2.5%
    N d. 0.0%

6291: When dragging of an anchor occurs, you must either reposition it at greater range or __________.

    N a. adjust the tensiometer
    N b. reduce the conductor tension
    Y c. use a piggyback (backing) anchor
    N d. increase the riser tension

6619: The SS AMERICAN MARINER has on board 6450 tons of cargo with an LCG-FP of 270.89 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-0194

    N a. LCG-FP 267.12 feet
    N b. LCG-FP 268.48 feet
    Y c. LCG-FP 270.97 feet
    N d. LCG-FP 273.06 feet

7075: Where there are multiple accident victims, which injuries should be the FIRST to receive emergency treatment?

    N a. Major multiple fractures
    N b. Eye injuries
    N c. Back injuries with spinal-cord damage
    Y d. Airway and breathing difficulties

7323: Whenever your marine radio is on, FCC Rules require you to monitor __________.

    N a. a commercial ship-to-ship channel
    N b. the last frequency that was used
    Y c. the distress and calling frequency
    N d. the radio only if expecting a call

8035: When the wave period and the apparent rolling period of the MODU are the same __________.

    Y a. synchronous rolling occurs
    N b. roll period decreases
    N c. roll period increases
    N d. roll amplitude is dampened

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

8321: The maximum concentration of H2S to which workers may be regularly exposed without adverse effects is __________.

    N a. 10 ppm
    Y b. 20 ppm
    N c. 40 ppm
    N d. 80 ppm

8697: The DEEP DRILLER, at 58.0 feet draft in sea water, loads 200 long tons. What is the new displacement?

    N a. 17,642 long tons
    N b. 17,842 long tons
    Y c. 18,042 long tons
    N d. 18,118 long tons

8997: Aboard a vessel, multiplying a load's weight by the distance of the load's center of gravity from the centerline results in the load's __________.

    N a. TCG
    Y b. transverse moment
    N c. righting moment
    N d. transverse free surface moment

9361: The principal personnel hazard unique to Halon extinguishers is __________.

    N a. displacement of oxygen
    N b. skin irritation
    Y c. inhaling toxic vapors
    N d. eye irritation

69354: Which casualty involving a mobile offshore drilling unit would require a report to be filed?

    N a. Damage to property of $20,000
    N b. An injury treated by first aid
    Y c. An occurrence materially and adversely affecting the vessel's fitness for service
    N d. All of the above