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.


107: What best describes for how long a gas-free test is good?


183: Which statement is TRUE concerning an inflatable liferaft?


313: Kapok life jackets should NOT be __________.


420: The most important figure in calculating the free surface constant of a tank carrying liquids is __________.

    N a. depth
    N b. length
    N c. displacement
    Y d. breadth

489: An extinguisher with 15 lbs. of CO2 or 10 lbs. of dry chemical is a size __________.

    N a. I
    Y b. II
    N c. III
    N d. IV

717: If your radiotelephone fails while underway, __________.

    N a. you must visually signal oncoming vessels
    N b. you must immediately tie up in the nearest port until the radiotelephone is repaired
    N c. you must anchor until the radiotelephone is repaired
    Y d. the loss of the radiotelephone must be considered in navigating the vessel

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.

829: A fire starting by spontaneous combustion can be expected in which condition?

    N a. Paints, varnish, or other liquid flammables are stowed in a dry stores locker.
    N b. Inert cargoes such as pig iron are loaded in a wet condition.
    Y c. Oily rags are stowed in a metal pail.
    N d. Clean mattresses are stored in contact with an electric light bulb.

1002: How do you operate a portable CO2 fire extinguisher?

    N a. Point the horn down.
    N b. Turn cylinder upside-down.
    N c. Break the rupture disc.
    Y d. Pull pin, squeeze grip.

1019: You are operating 10 miles offshore with three people aboard. What kind of survival craft must you carry?

    N a. An inflatable liferaft with a coastal pack
    N b. A life float
    N c. An inflatable buoyant apparatus
    Y d. No survival craft is required.

1058: Which statement describes the relationship between flash point and auto-ignition temperature?

    N a. Both are higher than normal burning temperatures.
    N b. The flash point is always higher.
    Y c. The ignition temperature is always higher.
    N d. They are not necessarily related.

1220: Lines passed around the falls to hold the boat while passengers are boarding are __________.

    N a. life lines
    Y b. frapping lines
    N c. tricing lines
    N d. tripping lines

1297: A small passenger vessel of not more than 65 feet in length must have a collision bulkhead if it __________.

    N a. operates on exposed waters
    N b. carries more than 49 passengers
    N c. is more than 40 feet in length and operates on partially exposed waters
    Y d. All of the above

1342: If there's a fire aboard your vessel, you should FIRST __________.

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

1405: When launching an inflatable liferaft, you should make sure that the operating cord is __________.

    Y a. fastened to some substantial part of the vessel
    N b. not fastened to anything
    N c. secured to the hydrostatic release
    N d. fastened to the raft container

1529: Under the Pollution Regulations, garbage disposal records must be kept __________.

    N a. until the end of the voyage
    N b. until the next Coast Guard inspection
    N c. one year
    Y d. two years

1531: You intend to discharge medical or hazardous wastes ashore. MARPOL Annex V requires you to notify a receiving port or terminal in advance. How much advance notice is required?

    N a. 12 hours
    Y b. 24 hours
    N c. 48 hours
    N d. Advance notification is not required.

1560: The most important reason for taking anti-seasickness pills as soon as possible after entering a liferaft is to __________.

    N a. assist in sleeping
    N b. reduce appetite by decreasing nausea
    Y c. prevent loss of body moisture by vomiting
    N d. prevent impaired judgment due to motion-induced deliriousness

1713: Line throwing equipment should NOT be operated __________.

    N a. during a rain storm
    Y b. in an explosive atmosphere
    N c. near a liferaft canister
    N d. by other than licensed officers

1739: The high-level overfill tank alarm, installed in the on-board monitoring system, must __________.

    N a. operate in unison with other alarms
    Y b. be both audible and visual
    N c. be the same as the overfill alarm
    N d. sound when the tank is 90% full

1763: You are operating a liftboat. When jacking down and a leg becomes stuck on the bottom, you should __________.

    N a. raise the free legs all the way
    N b. use the engines to rotate about the leg that is stuck
    Y c. jack the barge down part way to pull the leg free
    N d. submerge the barge completely to give added pull

1871: If the cause of a sudden severe list 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 vessel to an upright equilibrium position
    Y d. cause the vessel to flop to a greater angle

2092: According to regulations, cargo pumps in tank vessels carrying grade A, B, C, or D liquid cargo, shall be isolated from sources of vapor ignition by __________. (vessel constructed 1970)

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

2283: Sails may be wing and wing when_____________.

    N a. tacking
    N b. on a close reach
    Y c. sailing with the wind aft
    N d. anchored or drifting

2325: 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-0058

    N a. 395 tons
    N b. 530 tons
    N c. 750 tons
    Y d. 990 tons

2412: Use the floodable length curve in Section 1, the blue pages, of the Stability Data Reference Book. If the curve represents 45 percent permeability and number 5 hold floods, the vessel will sink if the permeability exceeds what percent?

    Y a. 66%
    N b. 70%
    N c. 74%
    N d. 79%

2597: Reinforcing frames attached to a bulkhead on a MODU are called __________.

    N a. side longitudinals
    N b. intercostals
    Y c. stiffeners
    N d. brackets

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

2748: Most covered lifeboats will right themselves after capsizing if the __________.

    Y a. passengers are strapped to their seats
    N b. fuel tanks are not less than half full
    N c. sea anchor is deployed to windward
    N d. lower ballast tanks are filled with water

2834: 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 remaining righting arm at 60° inclination if the center of gravity is 2.4 feet off the centerline.

    N a. 2.4 feet
    N b. 1.8 feet
    Y c. 0.5 foot
    N d. 0.2 foot

3109: 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-0106

    Y a. 3.9 feet
    N b. 4.3 feet
    N c. 4.7 feet
    N d. 5.1 feet

3318: You discover a leak in the fuel line to the engine. You should FIRST __________.

    N a. activate the CO2 system
    N b. make a temporary repair with canvas or tape
    N c. start the bilge pump
    Y d. close the fuel valve at the tank

3373: The DEEP DRILLER at survival draft loads 2,068.1 long tons of ballast. What is the new draft?

    N a. 30.0 feet
    N b. 45.0 feet
    Y c. 60.0 feet
    N d. 75.0 feet

3455: A semisubmersible, 200 feet in length between draft marks with the LCF 10 feet aft of amidships, records the following drafts: Port Forward 74'-09"; Port Aft 78'-09"; Starboard Forward 69'-09"; and Starboard Aft 73'-09". What is the list?

    N a. -1.0 foot
    N b. -2.5 feet
    Y c. -5.0 feet
    N d. -10.0 feet

3475: What is the increase in the longitudinal free surface correction for the DEEP DRILLER at a draft of 60 feet if 103.48 long-tons of ballast are transferred from a full ballast tank 1P to an empty ballast tank 10S?

    N a. 0.50 foot
    Y b. 0.47 foot
    N c. 0.27 foot
    N d. 0.13 foot

3501: The DEEP DRILLER as currently configured is limited to a maximum water depth of __________.

    N a. 400 feet
    Y b. 600 feet
    N c. 800 feet
    N d. 1,000 feet

3539: Using the Guidance Manual for Loading the M.V. Grand Haven, determine the amount of ballast required in tank No. 5 (P & S) to maintain drafts of 17'-00" forward and 22'-06" aft for a vessel loaded with grain which has a test weight of 33 lbs.

    N a. 1010 tons each
    N b. 1025 tons each
    N c. 1050 tons each
    Y d. 1070 tons each

3677: The DEEP DRILLER, while loaded as shown in the Sample Load Form #4 (Drilling), suffers damage to the starboard aft column below the waterline. Pumping from tanks 8S and 9S is not sufficient to prevent increasing starboard list and stern down trim. You should consider counterflooding in tank __________.

    N a. 1S
    Y b. 1P
    N c. C2BP
    N d. 10P

3714: If someone suffers a heart attack and has ceased breathing, you should __________.

    N a. immediately give a stimulant, by force if necessary
    N b. make the victim comfortable in a bunk
    Y c. immediately start CPR
    N d. administer oxygen

3726: Treatment of frostbite includes __________.

    N a. rubbing affected area with ice or snow
    N b. rubbing affected area briskly to restore circulation
    N c. wrapping area tightly in warm cloths
    Y d. warming exposed parts rapidly

3768: What is one of the FIRST actions you should take after abandoning and clearing away from a vessel?

    Y a. Identify the person in charge.
    N b. Gather up useful floating objects.
    N c. Prepare for arrival of rescue units.
    N d. Arrange watches and duties.

3833: Among the valves to open on the DEEP DRILLER, if you have to transfer ballast from Tank 1P to Tank 10S using #1 ballast pump, is valve __________.

    Y a. 33 Starboard
    N b. 44 Starboard
    N c. 33 Port
    N d. 44 Port

4065: In the DEEP DRILLER, the transverse free surface correction (FSCT) is obtained from the total of transverse free surface moments (FSMT) by __________.

    N a. adding the TCG
    N b. subtracting the TCG
    N c. multiplying by displacement
    Y d. dividing by displacement

4069: In the illustration, the sea anchor is number __________. (D014SA )

    N a. 1
    N b. 12
    Y c. 14
    N d. 18

4116: As Master of an inspected small passenger vessel, you have a question regarding a proposed modification to a watertight bulkhead. In which subchapter of title 46 of the Code of Federal Regulations will you find the answer?

    N a. Subchapter D
    N b. Subchapter G
    Y c. Subchapter T
    N d. Subchapter U

4226: You are loading in a port subject to the winter load line mark and bound for a port subject to the tropical load line mark. You will enter the summer zone after steaming four days, and you will enter the tropical zone after a total of seven days. You will consume 38 tons of fuel, water, and stores per day. The hydrometer reading at the loading pier is 1.004, and the average TPI is 72. What is the minimum freeboard required at the start of the voyage? (Get Table Data)

    N a. 85 inches
    Y b. 90 inches
    N c. 92 inches
    N d. 94 inches

4275: The independent-leg drilling unit is the best jack-up rig selection for drilling at locations with __________.

    N a. soft even bottoms
    Y b. firm uneven bottoms
    N c. deep water
    N d. shallow water

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

4755: Because there is a possibility of fuel oil being discharged overboard from a full fuel oil tank, it is decided to transfer 25 kips from tank #14 to tank #13. See COASTAL DRILLER Sample Load Form #1 (Rig Move). What would be the change in vertical moments with this transfer?

    N a. 81 ft-kips increase
    N b. 31 ft-kips increase
    Y c. 26 ft-kips decrease
    N d. 47 ft-kips decrease

5037: Where will you find the requirements for the signals that must be sounded by a mobile offshore drilling unit that is being towed through an area of restricted visibility?

    Y a. COLREGS
    N b. MMS Rules
    N c. SOLAS Convention
    N d. Coast Pilot

5486: This illustration shows the correct method of securing a __________. (D009SA )

    N a. man-rope
    N b. frapping line
    Y c. sea painter
    N d. lifeline

6213: When patching holes in the hull of a MODU, pillows, bedding, and other soft materials can be used as __________.

    N a. caulking
    Y b. gaskets
    N c. strongbacks
    N d. wedges

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

6306: An inflatable liferaft is thrown into the water from a sinking vessel. What occurs automatically after the painter trips the CO2 bottles to inflate the raft?

    Y a. The sea anchor deploys.
    N b. The floor inflates.
    N c. If upside down, the craft rights itself.
    N d. The painter detaches from the raft.

6821: How long shall the Master or person in charge of a MODU maintaining an unofficial logbook retain this logbook on board?

    N a. 6 months
    N b. 1 year
    N c. 5 years
    Y d. Until the next inspection for certification

6863: When are fore and aft draft readings required to be entered in the unofficial logbook of a MODU?

    N a. Once a day
    N b. Once a week
    Y c. Prior to getting underway
    N d. Only when entering waters of different density

7353: The height of a VHF radio antenna is more important than the power output wattage of the radio because __________.

    Y a. VHF communications are basically "line of sight"
    N b. the air is more dense the higher you go
    N c. salt water is a poor conductor of sound
    N d. sea water absorbs the radiated energy

8783: When using a hand held smoke signal aboard a survival craft, you should activate the signal __________.

    Y a. on the downwind side of the craft
    N b. on the upwind side of the craft
    N c. inside the craft
    N d. at the stern of the craft

9383: Immediately after abandoning a vessel, lookouts should be posted aboard liferafts to look for __________.

    Y a. survivors in the water
    N b. food and water
    N c. land
    N d. bad weather

9443: The magnitude of a moment is the product of the force and __________.

    N a. time
    Y b. lever arm
    N c. displacement
    N d. angle of inclination