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.


27: The atmosphere in a tank is too lean if it is __________.


158: A person has suffered a laceration of the arm. Severe bleeding has been controlled by using a sterile dressing and direct pressure. What should you do next?


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


198: A person suffering from possible broken bones and internal injuries should __________.

    N a. be assisted in walking around
    N b. be examined then walked to a bunk
    Y c. not be moved but made comfortable until medical assistance arrives
    N d. not be allowed to lie down where injured but moved to a chair or bunk

220: Metacentric height is a measure of __________.

    Y a. initial stability only
    N b. stability through all angles
    N c. maximum righting arm
    N d. All of the above

411: Under Annex V to MARPOL 73/78, garbage discharged from vessels that are located between 3 and 12 nautical miles from nearest land must be ground to less than __________.

    Y a. 1"
    N b. 1-1/4"
    N c. 1-1/2"
    N d. 2"

511: 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-0011

    Y a. 696 tons
    N b. 520 tons
    N c. 473 tons
    N d. 444 tons

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

902: Your vessel is equipped with a fixed CO2 system and a fire main system. In the event of an electrical fire in the engine room what is the correct procedure for fighting the fire?

    N a. Use the CO2 system and evacuate the engine room.
    N b. Use the fire main system and evacuate the engine room.
    Y c. Evacuate the engine room and use the CO2 system.
    N d. Evacuate the engine room and use the fire main system.

1010: Which action will best increase the transverse stability of a merchant vessel at sea?

    Y a. Ballasting the double bottom tanks
    N b. Deballasting the deep tanks
    N c. Positioning a heavy lift cargo on the main deck
    N d. Raising the cargo booms to the upright position

1202: Which is the most accurate instrument for measuring the amount of oxygen in the atmosphere of a confined space?

    N a. Combustible gas indicator
    Y b. Oxygen indicator
    N c. Flame safety lamp
    N d. All of the above

1332: An important step in fighting any electrical fire is to __________.

    N a. stop ventilation
    N b. stop the vessel
    Y c. de-energize the circuit
    N d. apply water to extinguish the fire

1374: Puncture leaks in the lower tubes or bottom of an inflatable liferaft should FIRST be stopped by using __________.

    Y a. sealing clamps
    N b. repair tape
    N c. a tube patch
    N d. sail twine and vulcanizing kit

1418: Which is the MOST important consideration for a tank vessel?

    N a. GM
    N b. The longitudinal center of gravity
    Y c. The stress on the hull
    N d. The vertical center of gravity

1457: When choosing extinguishers to fight a Class "B" fire do NOT use __________.

    N a. carbon dioxide
    N b. dry chemical
    N c. foam (stored-pressure type)
    Y d. water (cartridge-operated)

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"

1536: Which types of portable fire extinguishers are designed for putting out electrical fires?

    N a. Foam and water (stored pressure)
    N b. Foam and carbon dioxide
    N c. Foam and dry chemical
    Y d. Dry chemical and carbon dioxide

1537: How should longitude 11956.3'W be written when preparing an AMVER report?

    N a. V19.9
    N b. 120W
    N c. 119.9W
    Y d. 11956W

1570: Which is a mandatory section of the shipboard Oil Pollution Emergency Plan?

    Y a. Reporting requirements
    N b. Removal equipment list
    N c. Planned exercises
    N d. List of individuals required to respond

1580: Which statement is TRUE concerning the placard entitled "Discharge of Oil Prohibited"?

    N a. It is required on all vessels.
    N b. It is only required in the wheelhouse.
    Y c. It may be located at the bilge and ballast pump control station.
    N d. All of the above

1812: The sails are properly set and trimmed. As a vessel heads up from a beam reach to close hauled the __________.

    Y a. apparent wind moves forward
    N b. heeling moment decreases
    N c. side slip decreases
    N d. speed increases

1857: Which statement concerning locating signals in the GMDSS is FALSE?

    Y a. Locating signals are transmitted by survival craft VHF transceivers.
    N b. Locating signals are transmitted by SARTs.
    N c. Locating signals are intended to facilitate the finding of a distressed vessel or its survivors
    N d. Locating signals are not transmitted by autoalarm generators.

1937: On offshore drilling units, a fire drill must be conducted at least once a __________.

    Y a. week
    N b. month
    N c. quarter
    N d. year

1996: You have 240 tons of below deck tonnage. There is no liquid mud aboard. If you have 360 tons of cargo above deck with a VCG above the deck of 2.9 feet, what is the maximum allowed VCG of the remainder of the deck cargo that is permitted? (See illustration D036DG, stability letter for M.V. Hudson) (D036DG )

    N a. 1.35 feet
    N b. 1.86 feet
    N c. 2.56 feet
    Y d. 3.60 feet

2016: Your vessel measures 125 feet long by 17 feet in beam. If the natural rolling period at a draft of 7'-09" is 6 seconds, what is the GM?

    N a. 0.95 foot
    N b. 1.25 feet
    Y c. 1.55 feet
    N d. 1.78 feet

2095: Sails may be wing and wing when __________.

    N a. close hauled
    N b. tacking
    N c. wearing
    Y d. sailing with the wind aft

2164: Your vessel is damaged, listing to port and on occasion flopping to the same angle to starboard. It has a long, slow, sluggish roll around the angle of list. There is excessive trim by the stern with little freeboard aft. What action should you take FIRST to correct this situation?

    N a. Jettison any off-center topside weights to lower GM and correct the list.
    N b. Pump out any slack after double-bottom tanks to reduce free surface and increase freeboard aft.
    N c. Pump out the after peak and fill the forepeak to change the trim.
    Y d. Press up any slack double-bottom tanks forward of the tipping center, then fill the forepeak if empty.

2267: During the towing of a survival craft, a lookout should be on station to __________.

    Y a. release the towline in an emergency
    N b. help the helmsman steer
    N c. look for food and water
    N d. check the water level in the bilge

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

2378: A vessel's drafts are FWD 23'-01", AFT 24'-11". Use the information in Section 1, the blue pages, of the Stability Data Reference Book to determine the final drafts if: (1) 142 tons are discharged 122 feet forward of amidships; (2) 321 tons are loaded 82 feet forward of amidships; and (3) 74 tons are discharged 62 feet aft of amidships.

    N a. FWD 23'-05", AFT 24'-00"
    N b. FWD 23'-06", AFT 24'-02"
    N c. FWD 23'-07", AFT 24'-03"
    Y d. FWD 23'-09", AFT 24'-05"

2509: How many portable fire extinguishers are required in the cargo tank area of an unmanned tank barge during cargo transfer, if the barge has no cargo pumps of her own?

    Y a. One
    N b. Two
    N c. Three
    N d. None

2574: Your vessel's drafts are: FWD 27'-06", AFT 28'-02"; and the KG is 23.1 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 60 inclination.

    N a. 0.9 foot
    Y b. 1.8 feet
    N c. 2.7 feet
    N d. 4.5 feet

2659: 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-0074

    Y a. Available GM 4.3 ft
    N b. Available GM 4.1 ft
    N c. Available GM 3.9 ft
    N d. Available GM 3.6 ft

2763: A welding procedure used for joining dissimilar metals used on a MODU would be recorded in the __________.

    N a. welding plan
    N b. ASTM specifications
    Y c. construction portfolio
    N d. Coast Guard file

2802: Your vessel's drafts are: FWD 14'-11", AFT 15'-09"; and the KG is 18.2 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the angle of list if the center of gravity is shifted 2.0 feet off the centerline.

    N a. 9
    Y b. 12
    N c. 16
    N d. 19

2891: The maximum angle at which the intact stability curves are valid for MODU's is the angle for __________.

    N a. the limit of positive stability
    N b. the limit of small-angle stability
    N c. maximum offset
    Y d. downflooding

3229: The engine head, block, and exhaust manifold shall be __________. (small passenger vessel regulations)

    Y a. water jacketed
    N b. air cooled
    N c. preheated prior to starting
    N d. drained weekly

3343: The righting moment created by a MODU that displaces 15,000 tons with a righting arm (GZ) of 0.02 foot is __________.

    N a. 3,000 foot-tons
    N b. 750 foot-tons
    N c. 600 foot-tons
    Y d. 300 foot-tons

3495: The SS AMERICAN MARINER arrived in port with drafts of: FWD 17'-10", AFT 19'-06". 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. ST-0134

    N a. FWD 16'-10", AFT 21'-02"
    N b. FWD 17'-00", AFT 21'-00"
    N c. FWD 17'-02", AFT 20'-10"
    Y d. FWD 17'-04", AFT 20'-08"

3535: The marine riser on the DEEP DRILLER should be disconnected if it appears the ball joint angle will exceed 10 or the mooring line tensions will exceed __________.

    N a. 348 kips
    N b. 500 kips
    Y c. 522 kips
    N d. 600 kips

3756: Treatment of sunstroke consists principally of __________.

    Y a. cooling, removing to shaded area, and lying down
    N b. bathing with rubbing alcohol
    N c. drinking ice water
    N d. All of the above

3797: What are the longitudinal moments for the contents of P-tank #1 of the DEEP DRILLER if the ullage is 2.3 feet?

    Y a. -3,096 ft-tons
    N b. -3,880 ft-tons
    N c. -4,663 ft-tons
    N d. -6,509 ft-tons

3925: Among the valves that must be opened on the DEEP DRILLER to pump bilge water out of the port pump room using both bilge pumps is valve __________.

    N a. 26
    N b. 28
    N c. 36
    Y d. 41

3958: If there's a fire aboard your vessel, you should FIRST __________.

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

4030: Fire protection regulations for towing vessels require any fuel line subject to internal head pressure from fuel in the tank to ___________ .

    Y a. be fitted with a positive fuel shut-off valve located at the tank
    N b. have a shut-off valve at the top of the tank
    N c. have a gate valve easily accessible in the space where the tank is located
    N d. have a drain cock at the lowest point in the fuel line

4778: The SS AMERICAN MARINER has on board 5540 tons of cargo with an LCG-FP of 272.20 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-0169

    N a. LCG-FP 266.5 feet
    Y b. LCG-FP 267.8 feet
    N c. LCG-FP 268.4 feet
    N d. LCG-FP 269.2 feet

4791: The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). How much more variable load in kips can be placed on the unit if winds remain less than 70 knots?

    Y a. 0 kips
    N b. 200 kips
    N c. 600 kips
    N d. 1,000 kips

5225: If the cause of a sudden severe list or trim is negative initial stability, counterflooding into empty tanks may __________.

    N a. increase the righting moment
    N b. cause an increase in the righting arm
    N c. bring the unit to an upright equilibrium position
    Y d. cause the unit to flop to a greater angle

6085: On a MODU, a fixed carbon dioxide or other approved system must be installed __________.

    Y a. where oil or chemical drums are stored
    N b. in all battery storage locations
    N c. in paint lockers
    N d. in all of the above locations

6106: 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-0192

    N a. Available GM 4.3 ft
    N b. Available GM 4.7 ft
    N c. Available GM 5.1 ft
    Y d. Available GM 5.5 ft

6563: When loading or discharging dry mud or cement, crew members should use goggles and __________.

    Y a. facial respirator mask
    N b. ear plugs
    N c. rubberized boots
    N d. fireman's outfit

6927: Records which must be retained on board after report of casualty to a MODU include the __________.

    Y a. tour reports
    N b. hull reports
    N c. machinery repair record book
    N d. deck equipment log

7003: When treating a chemical burn, you should flood the burned area for at least __________.

    Y a. five minutes
    N b. ten minutes
    N c. fifteen minutes
    N d. twenty minutes

7343: What is maximum power allowed by the FCC for VHF-FM radio transmissions?

    N a. One watt
    N b. Five watts
    N c. 15 watts
    Y d. 25 watts

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 40F
    N d. a rigid survival craft is in the area

7655: In small angle stability, the metacentric height __________.

    N a. is found in the hydrostatic tables for a level vessel
    N b. multiplied by the displacement yields the righting moment
    N c. is always positive
    Y d. is calculated by subtracting KG from KM

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

8515: While preparing for a storm when elevated, the total weight of the COASTAL DRILLER is 14,150 kips, LM are 1,712,150 ft-kips, and TM are -9,905 ft-kips. The starboard leg reaction is __________.

    N a. 4,536 kips
    N b. 4,698 kips
    Y c. 4,725 kips
    N d. 4,890 kips

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

9185: The external flotation bladder of an immersion suit should be inflated __________.

    N a. only after two hours in the water
    N b. only after four hours in the water
    N c. before entry into the water
    Y d. upon entry into the water