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 __________.


341: The Master or other vessel representative must contact the nearest Coast Guard Marine Safety Office within five days of a(n) __________.


355: The center of flotation of a vessel is the point in the waterplane __________.


401: On a vessel of 12,000 tons displacement, what is the reduction in metacentric height due to free surface when a tank 60 feet long and 60 feet wide is partially filled with water?

    N a. 2.30 feet
    N b. 2.43 feet
    N c. 2.48 feet
    Y d. 2.57 feet

426: A 2,000 GT tankship is required to carry __________.

    N a. emergency outfits only on an international voyage
    N b. one oxygen breathing apparatus with enough lifeline to reach from the open deck to any part of the tanks
    Y c. two self-contained breathing apparati
    N d. two canister type gas masks if such vessel is authorized to carry grade A, B, C or D liquids

448: 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

488: A rescuer can most easily determine whether or not an adult victim has a pulse by checking the pulse at the __________.

    Y a. carotid artery in the neck
    N b. femoral artery in the groin
    N c. brachial artery in the arm
    N d. radial artery in the wrist

765: Hoses used for cargo transfer operations must be tested and inspected at specified intervals by __________.

    N a. a representative of the Captain of the Port
    Y b. the operator of the vessel or facility
    N c. a representative of the National Cargo Bureau
    N d. a representative of the American Bureau of Shipping

823: Traditionally, the signal for fire aboard ship is __________.

    N a. more than 6 short blasts and 1 long blast on the whistle, and the same signal on the general alarm
    Y b. continuous sounding of the ship's whistle and the general alarm for at least 10 seconds
    N c. 1 short blast on the whistle
    N d. alternating short and long blasts on the ship's whistle

919: After an accident the victim may go into shock and die. What should be done to help prevent shock?

    N a. Slightly elevate the head and feet.
    N b. Keep the person awake.
    Y c. Keep the person lying down and at a comfortable temperature.
    N d. Give the person a stimulant to increase blood flow.

1515: You see an iceberg that has not been reported. What kind of radio message do you transmit to warn others?

    Y a. Safety message
    N b. Urgency message
    N c. Distress message
    N d. Routine message

1549: You are sailing in a strong wind and may accidentally jibe when __________.

    N a. reaching
    N b. tacking
    Y c. running-free
    N d. in irons

1667: A shipmate suffers a heart attack and stops breathing. You must __________.

    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

1761: After jacking down your liftboat you have an unexpected list. You find that the only cause of this list must be a flooded leg. The list caused by a flooded leg means your vessel has a(n)____________.

    N a. negative GM (metacentric height)
    Y b. decrease in the GZ (righting arm)
    N c. increase in the waterplane and the metacentric height
    N d. less chance of deck edge immersion

1851: When using a hand held smoke signal from a lifeboat, you should activate the signal __________.

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

1869: The three corners of the main sail are called __________. (D002SL )

    N a. head, fore, and aft
    N b. luff, leech, and spar
    N c. headboard, foot, and tail
    Y d. head, tack, and clew

2023: If you were to jibe in a strong wind, the part of the rigging most likely to fail would be the __________.

    N a. forestay
    Y b. backstay
    N c. jumper stay
    N d. halyard

2053: What is the international calling and distress channel found on all VHF-FM equipped drilling rigs?

    N a. Channel 1
    N b. Channel 10
    Y c. Channel 16
    N d. Channel 68

2069: The metal horseshoe-shaped pieces used to bend a sail onto a stay are called_________.

    Y a. hanks
    N b. shackles
    N c. warps
    N d. gudgeons

2072: By regulation, cargo tank atmosphere must be inert before and during which operation?

    N a. stripping
    N b. topping off
    N c. gravitating
    Y d. All of the above

2207: You are keeping the required garbage disposal records. The amount of garbage disposed must be stated in __________.

    N a. both cubic meters and cubic feet
    Y b. cubic meters
    N c. both kilos and pounds
    N d. barrels of 55 gallon capacity

2228: Your sails are properly trimmed while on a reaching course. Changing to a close hauled course will __________.

    N a. require you to sheet in for best speed
    N b. result in a reduction of speed
    N c. cause a greater heeling force to leeward
    Y d. All of the above

2281: When retrieving the survival craft, the winch operator should stop the winch and check __________.

    N a. that all personnel are seated in the craft
    Y b. that the cable has not jumped any grooves on the drum
    N c. which way the wind is blowing
    N d. the hydraulic fluid level before lifting

2289: According to the Chemical Data Guide, what is the Reid Vapor Pressure of tert-butylamine?

    Y a. 11 (psig)
    N b. 12 (psig)
    N c. 13 (psig)
    N d. 14 (psig)

2304: Regulations require that cargo pumprooms handling grades D and/or E liquid cargo only shall be fitted with at LEAST how many ducts extended to the weather deck?

    N a. 1
    Y b. 2
    N c. 3
    N d. 4

2309: Your vessel is preparing to lift a weight of 30 tons with a boom whose head is 30 feet from the ship's centerline. The ship's displacement not including the weight lifted is 8,790 tons. KM is 21.5 ft; KG is 20.5 ft. The angle of list when the weight is lifted will be __________.

    N a. 1.4°
    N b. 2.8°
    N c. 3.4°
    Y d. 5.8°

2322: What is NOT a requirement of cargo piping installed in tank vessels carrying grade D or E cargo ONLY?

    Y a. The cargo piping system shall be fixed.
    N b. Flanged joints shall be used for pipe sizes exceeding 2 inches in diameter.
    N c. Piping through bunker spaces may be run through a pipe tunnel.
    N d. Connections at bulkheads must be made so that the plating does not form part of a flanged joint.

2408: If your asphalt barge has operated more than 12 months in saltwater in the 24 month period since it was last dry-docked, when is it required to be hauled out again?

    N a. 12 months since last dry-docking
    N b. 18 months since last dry-docking
    N c. 24 months since last dry-docking
    Y d. 36 months since last dry-docking

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

2567: A MODU crane which has been idle for a period of over six months shall be inspected to the same standards as a __________.

    Y a. yearly inspection
    N b. quarterly inspection
    N c. monthly inspection
    N d. weekly inspection

2890: 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'-10", AFT 17'-02". If you then load 1050 tons of cargo in the lower holds (VCG 12.5 feet) and 475 tons in the lower 'tween decks (VCG 24.5 feet), what is the final GM? (Use the reference material in Section 1, the blue pages, of the Stability Data Reference Book)

    N a. 2.1 feet
    N b. 1.6 feet
    N c. 1.4 feet
    Y d. 0.6 foot

3067: The canopy of your liferaft should __________.

    Y a. go into place as your liferaft is inflated
    N b. be put up after everyone is aboard
    N c. be put up only in severe weather
    N d. be used as a sail if the wind is blowing

3349: Which device is required in the fuel supply line at the engine?

    N a. Flow meter
    Y b. Shut-off valve
    N c. Pressure gauge
    N d. Filter

3355: The sea painter of an inflatable liferaft should be __________.

    N a. free running on deck
    N b. faked out next to the case
    Y c. secured to a permanent object on deck via a weak link
    N d. stowed near the raft

3415: A vessel has a strong wind on the port beam. This has the same affect on stability as __________.

    Y a. weight that is off-center to starboard
    N b. increasing the draft
    N c. reducing the freeboard
    N d. increasing the trim

3571: The DEEP DRILLER is anchoring in 600 feet of water. In the absence of environmental forces, the mooring lines should be adjusted to __________.

    N a. 245 kips
    Y b. 222 kips
    N c. 237 kips
    N d. 194 kips

3587: A person has fallen overboard and is being picked up with a rescue boat. If the person appears in danger of drowning, the rescue boat should be maneuvered to make____________________.

    N a. an approach from leeward
    N b. an approach from windward
    N c. an approach across the wind
    Y d. the most direct approach

3599: What should you do with your emergency position indicating radio beacon if you are in a lifeboat during storm conditions?

    Y a. Bring it inside the liferaft and leave it on.
    N b. Bring it inside the liferaft and turn it off until the storm passes.
    N c. Leave it outside the liferaft and leave it on.
    N d. Leave it outside the liferaft and turn it off.

3655: You can indicate that your vessel is in distress by __________.

    N a. displaying a large red flag
    N b. displaying three black balls in a vertical line
    N c. sounding five or more short and rapid blasts on the whistle
    Y d. continuously sounding the fog whistle

3778: When a ship is abandoned and there are several liferafts in the water, one of the FIRST things to be done is __________.

    N a. separate the rafts as much as possible to increase chances of detection
    N b. transfer all supplies to one raft
    N c. transfer all the injured to one raft
    Y d. secure the rafts together to keep them from drifting apart

3823: What is the change in vertical moments for the DEEP DRILLER if 103.48 long tons of ballast is discharged from a full ballast tank 1P?

    N a. 6,707 foot-tons decrease
    N b. 4,984 foot-tons decrease
    Y c. 1,914 foot-tons decrease
    N d. 155 foot-tons decrease

3895: When filling fuel-oil tank 6P on the DEEP DRILLER, it is necessary to open valve __________.

    N a. 9
    N b. 10
    N c. 11
    Y d. 12

3920: Inflatable liferafts are less maneuverable than lifeboats due to their __________.

    N a. shape
    N b. shallow draft
    N c. large sail area
    Y d. All of the above

4767: The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). If the entire contents of the port pipe rack are back-loaded to an offshore supply vessel, how much drill water would have to be transferred from tank #1 to tank #26 to level the vessel in trim?

    N a. 62.7 kips
    N b. 64.4 kips
    N c. 111.4 kips
    Y d. 114.9 kips

5671: When assuming the maximum ice weight accumulation on the DEEP DRILLER at survival draft, the vertical moments are increased by __________.

    N a. 40,402 ft-long tons
    N b. 42,255 ft-long tons
    Y c. 45,593 ft-long tons
    N d. 49,280 ft-long tons

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

6661: On a self-elevating drilling unit, draft marks must be located __________.

    Y a. near each corner of the hull
    N b. at frame O, port and starboard
    N c. at bow and stern on the centerline
    N d. on each leg

6907: On offshore drilling units, notification shall be given to the Coast Guard of a casualty if a person is injured and unable to perform routine duties for __________.

    Y a. any amount of time
    N b. more than 24 hours
    N c. more than 36 hours
    N d. more than 72 hours

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

7127: Spaces protected by a fixed CO2 system must be equipped with an alarm which sounds __________.

    N a. for the first 20 seconds CO2 is being released into the space
    Y b. for at least 20 seconds prior to release of CO2
    N c. during the entire period that CO2 is being released
    N d. if all doors and ventilation are not secured

7331: Routine radio communications should be no more than __________.

    N a. one minute
    Y b. three minutes
    N c. five minutes
    N d. eight minutes

8093: What is the displacement of the DEEP DRILLER with a draft of 19.5 feet in fresh water?

    Y a. 11,932.8 long tons
    N b. 12,232.8 long tons
    N c. 12,602.9 long tons
    N d. 18,919.8 long tons

8197: If a severe storm threatens the COASTAL DRILLER while elevated as shown in the Sample Load Form #3 (Drilling), the variable loads would have to be reduced by __________.

    N a. 3,282.5 kips
    N b. 2,381.0 kips
    Y c. 1,000.0 kips
    N d. 901.5 kips

8373: How does combustion air enter the cylinder of a two-cycle diesel engine?

    N a. Cylinder head valves
    Y b. Ports
    N c. Turbo chargers
    N d. Bleeder valves

8493: What is the value of KML for the DEEP DRILLER at a draft of 60 feet?

    N a. 59.63 feet
    N b. 60.16 feet
    N c. 61.68 feet
    Y d. 61.13 feet

8545: It is proposed to moor the DEEP DRILLER in 600 feet of water in a region in which the effective wind velocity could reach 80 knots, significant wave height could reach 30 feet, and the current could be 1.5 knots. If these conditions occurred at the same time from the bow, the total environmental force would be __________.

    N a. 620 kips
    Y b. 595 kips
    N c. 475 kips
    N d. 425 kips

8555: The discharge side of every fire pump must be equipped with a __________.

    N a. gate valve
    Y b. pressure gauge
    N c. check valve
    N d. strainer

8699: What are the transverse moments for the contents of P-tank #1 of the DEEP DRILLER if the ullage is 2.3 feet?

    Y a. 3,049 ft-tons
    N b. 3,977 ft-tons
    N c. 6,412 ft-tons
    N d. 8,362 ft-tons

9067: The TCG of a vessel may be found by dividing the displacement of the vessel into the __________.

    N a. transverse center of gravity of the vessel
    N b. sum of the vertical moments of the vessel
    Y c. sum of the transverse moments of the vessel
    N d. transverse baseline of the vessel

9491: The difference between the height of the metacenter and the height of the center of gravity is __________.

    N a. KB
    N b. KG
    N c. KM
    Y d. GM