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.


120: The point to which your vessel's center of gravity (G) may rise and still permit the vessel to have positive stability is called the __________.


148: First aid treatment for small cuts and open wounds is to __________.


188: The preferred method of controlling external bleeding is by __________.


228: Which is the most serious type of fracture?

    Y a. Compound
    N b. Greenstick
    N c. Closed
    N d. Crack

267: Which type of EPIRB must each ocean-going ship carry?

    N a. Class A
    N b. Class B
    N c. Class C
    Y d. Category 1

338: A man has a burn on his arm. There is reddening of the skin, blistering, and swelling. Using standard medical terminology this is a __________.

    N a. major burn
    N b. secondary burn
    Y c. second-degree burn
    N d. blister burn

377: The regulations governing the frequencies of the bridge-to-bridge radiotelephone are issued by the __________.

    N a. Department of Transportation
    Y b. Federal Communications Commission
    N c. U.S. Coast Guard
    N d. Department of Defense

462: When the handle of an all-purpose nozzle is in the vertical position and without an applicator, the all-purpose nozzle will __________.

    Y a. produce high-velocity fog
    N b. produce low-velocity fog
    N c. produce a straight stream
    N d. shut off the water

539: On a vessel of 10,000 tons displacement, compute the reduction in metacentric height due to free surface in a hold having free water on tank tops. The hold is 50 feet long and 50 feet wide. The reduction in metacentric height is __________.

    N a. 1.2 feet
    N b. 1.1 feet
    N c. 1.3 feet
    Y d. 1.5 feet

612: The service life of distress signals must be not more than __________.

    Y a. forty two months from the date of manufacture
    N b. thirty six months from the date of the last inspection
    N c. twenty four months from the date of approval
    N d. twelve months from the date of purchase

648: Ring life buoys used aboard a small passenger vessels on oceans or coastwise routes are required to be what color?

    N a. White
    N b. White or international orange
    Y c. Orange
    N d. Any highly visible color easily seen from the air

1135: Which statement about the bilge piping system of "T-Boats" that are more than 26 feet in length is NOT correct?

    N a. Each watertight compartment must have its own bilge suction line or pump
    N b. Each space's bilge suction connection to a manifold must have stop and check valves, or a stop-check valve
    Y c. All bilge piping must be at least 2" inside-diameter brass pipe
    N d. Bilge suction strainers must have an open area not less than three times the area of the bilge pipe

1483: The SS AMERICAN MARINER is partially loaded with a GM of 3.1 feet and drafts of: FWD 19'-06", AFT 21'-04". Use the white pages of the Stability Data Reference Book to determine what tank(s) you should ballast to increase the GM to 3.7 feet.

    N a. Tanks: DT1
    Y b. Tanks: DB3, DT8
    N c. Tanks: DB2, DB7
    N d. Tanks: DB5

1663: Which tank barges require draft marks?

    Y a. All tank barges
    N b. Tank barges over 50 GT
    N c. Tank barges over 100 GT
    N d. Notch barges over 1000 GT

1665: Which statement about stowing spare hose is TRUE?

    Y a. Fold the hose so that the male coupling is about 4 feet from the female coupling, then roll it up.
    N b. Roll the hose starting at the female end.
    N c. Roll the hose starting at the male end.
    N d. Fold the hose into lengths about 6 feet long and then lash the folds together.

1707: Your 40-foot auxiliary sailing vessel has just run aground on a bar. She has a relatively long, deep keel and the tide is falling. You have checked the bilges for damage and found none. Which is the most prudent action to take immediately?

    N a. Sheet the sails in flat to try to heel her over with the wind and sail off.
    N b. Start the engine and run it hard in forward to try to drive over and off the bar.
    Y c. Strike the sails. Then run a kedge anchor out to one side, hook the main halyard to it, and heave the boat down onto one side.
    N d. Take soundings visually, by sounding pole, or lead line all around the vessel to locate the deepest water.

1821: On offshore drilling units where natural ventilation is provided, each porthole or window must be fitted with __________.

    Y a. screens
    N b. portlights
    N c. covers
    N d. curtains

2204: Which communications functions must all vessels be capable of performing under GMDSS as defined by the International Maritime Organization?

    N a. Radio direction finding
    Y b. Distress alerting to and from vessels, search and rescue coordination, on-scene communications, signals for locating, Maritime Safety Information, general and bridge-to-bridge communications.
    N c. Communications in each of the operational ocean areas
    N d. All communications possible within the International Safety-NET service

2423: A large valve, usually installed above the ram preventers, that forms a seal in the annular space between the pipe and wellbore or, if no pipe is present, on the wellbore itself is called the __________.

    Y a. annular blowout preventer
    N b. annulus
    N c. accumulator
    N d. automatic choke

2545: On a MODU crane, the boom indicator tells the operator what the boom angle is compared to the __________.

    N a. vertical position
    Y b. horizontal position
    N c. boom stop angle
    N d. minimum radius angle

2692: Your vessel's drafts are: FWD 22'-04", AFT 22'-10"; and the KG is 22.6 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 45° inclination.

    N a. 1.8 feet
    N b. 2.6 feet
    N c. 2.9 feet
    Y d. 3.6 feet

2697: In order to withstand fluid head pressure on a MODU, stiffeners are often attached to the bulkhead __________.

    N a. penetrations
    Y b. plating
    N c. framing
    N d. brackets

2759: Your vessel's drafts are: FWD 14'-04", AFT 17'-08". 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 18 inches? (Use the reference material in Section 1, the blue pages, of the Stability Data Reference Book)

    N a. 110 tons
    Y b. 103 tons
    N c. 100 tons
    N d. 98 tons

3026: Who is required to prepare and post Emergency Instructions in a conspicuous place accessible to crew and passengers? (small passenger vessel regulations)

    N a. The builder of the vessel
    Y b. The owner or Master of the vessel
    N c. The U.S. Coast Guard
    N d. The classification society

3051: The external flotation bladder on 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

3071: The free surface effects of a partially-full tank in a floating MODU increase with the __________.

    Y a. surface area of the fluid in the tank
    N b. displacement volume of the MODU
    N c. draft of the MODU
    N d. height of the tank above the keel

3290: On vessels that are required to have fixed carbon dioxide fire extinguishing systems, the controls to operate the system shall be installed in an accessible location __________. (small passenger vessel regulations)

    Y a. outside the space protected
    N b. inside the space protected
    N c. at the carbon dioxide cylinders
    N d. in a padlocked waterproof metal box

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

3325: A semisubmersible, with a TCG of 0.5 feet to port, displaces 20,000 long tons. Bulk, weighing 400 long tons, is discharged from P-tanks located 50 feet starboard of the centerline. What is the new TCG?

    N a. 1.03 feet starboard of centerline
    N b. 0.53 foot starboard of centerline
    N c. 0.53 foot port of centerline
    Y d. 1.53 feet port of centerline

3371: The DEEP DRILLER at a draft of 60.0 feet discharges 68.94 long tons of ballast. What is the new draft?

    N a. 66.0 feet
    N b. 60.5 feet
    Y c. 59.5 feet
    N d. 55.0 feet

3412: Your vessel's existing draft is FWD 24'-08", AFT 25'-04". Using the Guidance Manual for Loading M.V. GRAND HAVEN, determine the new draft if 180 long tons are loaded in No. 23 hatch.

    N a. FWD 24'-04 2/3", AFT 25'-10 3/4"
    Y b. FWD 24'-06 1/2", AFT 25'-08 2/3"
    N c. FWD 24'-08 1/4", AFT 25'-00 2/3"
    N d. FWD 24'-10 1/4", AFT 25'-00 1/4"

3537: The marine riser on the DEEP DRILLER should be disconnected if it appears the mooring line tensions will exceed 522 kips or the ball joint angle will exceed __________.

    N a. 4°
    N b. 5°
    N c. 7°
    Y d. 10°

3766: The primary concern in aiding a back injury patient is __________.

    N a. relieving the patient's pain by giving aspirin or stronger medication
    Y b. avoiding possible injury to the spinal cord by incorrect handling
    N c. preventing convulsions and muscle spasms caused by the pain
    N d. providing enough fluids to prevent dehydration

3876: What is NOT a requirement for testing the line throwing appliance on a vessel?

    N a. A drill should be conducted every three months.
    Y b. A regular service line must be used when it's fired.
    N c. A regular projectile must be used when it's fired.
    N d. The actual firing is at the discretion of the Master.

3881: On the DEEP DRILLER, among the starboard-side valves to open when deballasting from ballast tank 2S is valve __________.

    N a. 3
    Y b. 5
    N c. 6
    N d. 7

3917: The DEEP DRILLER, at a draft of 60 feet, has 3,765 ft-tons of transverse moments. How much ballast should be transferred between tanks 1P and 1S to level the unit in list?

    Y a. 25.1 long tons
    N b. 50.2 long tons
    N c. 62.8 long tons
    N d. 252.1 long tons

3974: In the illustration, the sea anchor is shown as item number_____. (D014SA )

    N a. 7
    N b. 13
    N c. 15
    Y d. 14

4143: While loaded as shown in the Sample Load Form #4 (Drilling), all of the liquid mud is dumped. What would be the new draft?

    Y a. 56.69 feet
    N b. 58.14 feet
    N c. 59.14 feet
    N d. 63.31 feet

4190: You are loading at port A, governed by the summer load line mark, for a voyage to port B, governed by the winter mark. The fresh water allowance is 10", and the hydrometer reads 1.020. Which statement is TRUE?

    N a. You may not load beyond the winter mark except for 2 inches brackish water allowance.
    N b. You may not load beyond the summer mark and must be at the winter mark upon arrival at port B.
    N c. You may not load beyond the summer mark plus 8 inches brackish water allowance.
    Y d. You may load to the summer mark plus 2 inches if you will be at the winter mark when entering the winter zone.

4401: Use of air gaps in excess of that stated in the Limits of Elevated Service for the COASTAL DRILLER could result in __________.

    N a. the hull being in the storm wave zone
    Y b. increased overturning moments
    N c. reduced exposed area
    N d. increased static leg loading

4637: How much drill water should be transferred from tanks #23 and #24 to tank #1 to level the COASTAL DRILLER, in transit at a draft of 10 feet 6 inches, if the total longitudinal moments are 1,700,000 ft-kips?

    N a. 438 kips
    Y b. 451 kips
    N c. 521 kips
    N d. 537 kips

4693: The COASTAL DRILLER, with no trim, is at a true mean draft of 10 feet and 10 inches. TM is -6,800 ft-kips. Using only tanks #1, #25, and #26, how many kips of drill water must be transferred to level the jack-up?

    N a. Transfer 53.1 kips each from #25 and #26 forward to #1
    N b. Transfer 100 kips from #26 to #25
    N c. Transfer 200 kips from #25 to #26
    Y d. Transfer 100 kips from #25 to #26

4807: The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). What is the new transverse free surface correction (FSCT) if the entire contents of drill water tanks 6 and 7 are discharged?

    N a. 2.24 feet
    N b. 2.14 feet
    N c. 2.10 feet
    Y d. 1.67 feet

5247: In case of major damage to column C1P while the DEEP DRILLER is on location, you should pump from port-forward lower-hull tanks using __________.

    N a. all four ballast pumps
    Y b. both port-side ballast pumps
    N c. saltwater service pump to supplement port-side ballast pumps
    N d. drill water pump to supplement port-side ballast pumps

5261: The DEEP DRILLER, loaded as shown in Sample Load Form #4 (Drilling), suffers major damage which results in flooding in tank C1P. Your best countermeasure is to __________.

    Y a. pump from 2P
    N b. pump from C1P
    N c. counterflood in 1P
    N d. counterflood in 10S

5287: The DEEP DRILLER, loaded as shown in Sample Load Form #1 (Transit), suffers minor damage which results in flooding in tank 1S. You may pump from __________.

    N a. 2S
    N b. C1S
    Y c. 1S
    N d. 10P

5449: The SS AMERICAN MARINER is ready to bunker with drafts of FWD 17'-06", AFT 20'-04". 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-0178

    N a. 1.05 feet
    N b. 1.15 feet
    N c. 1.25 feet
    Y d. 1.31 feet

5501: What is a major disadvantage of Di-Lok chain compared with Oil Rig Quality (stud link) chain in floating drilling rig operations?

    Y a. Shorter fatigue life
    N b. Higher weight
    N c. Lower strength
    N d. Greater expense

5561: What line receives the hardest service in the mooring system?

    N a. Guy wire
    N b. Joining pendant
    N c. Wildcat leader
    Y d. Anchor pendant

5795: What is the length of the catenary when the DEEP DRILLER is anchored in 600 feet of water and the anchor line tension is 170 kips?

    N a. 891 feet
    N b. 1348 feet
    Y c. 1493 feet
    N d. 1657 feet

5811: The unit used to measure anchor line tensions in the offshore drilling industry is the __________.

    N a. long ton
    N b. short ton
    N c. metric ton
    Y d. Kip

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

6551: When referring to quantity of barite in a P-tank, ullage is the __________.

    N a. distance of the barite surface above the tank bottom
    N b. percentage of barite in the tank
    Y c. distance of the barite surface below the tank cover
    N d. total weight of barite in UPC (ullages per centimeter)

6987: Severe airway burns can cause __________.

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

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

7587: The geometric center of the underwater volume is known as the __________.

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

7725: Reserve buoyancy is the __________.

    N a. unoccupied space below the waterline
    Y b. volume of intact space above the waterline
    N c. excess of the buoyant force over the gravity force
    N d. difference in the buoyant force in salt and fresh waters

8047: An "on-load" release system on a survival craft means the cable can be released __________.

    N a. only when the load is taken off the cable
    N b. only when there is a load on the cable
    N c. only when activated by the controls at the lowering station
    Y d. at any time

8927: On the COASTAL DRILLER, placing the rotary 34 feet aft of the transom and two feet to starboard of the centerline, limits the maximum hook load to __________.

    N a. 1000 kips
    Y b. 875 kips
    N c. 750 kips
    N d. 450 kips

9527: When the height of the metacenter is less than the height of the center of gravity, a vessel has which type of stability?

    N a. Stable
    N b. Neutral
    Y c. Negative
    N d. Positive