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.


10: What is the definition of transverse metacenter?


90: Refer to the illustration below. Which represents the righting arm? (D001SA )


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?


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.

513: Number 3 lifeboat would be __________.

    N a. the forward boat on the starboard side
    N b. behind boat number 1 on the port side
    Y c. behind boat number 1 on the starboard side
    N d. behind boat number 2 on the port side

652: How does foam extinguish an oil fire?

    N a. By cooling the oil below the ignition temperature
    N b. By removing the fuel source from the fire
    Y c. By excluding the oxygen from the fire
    N d. By increasing the weight of the oil

743: In order for the automatic lifeboat drain to operate properly __________.

    N a. the cap should be removed to drain the boat when it is waterborne
    Y b. the cage must be free of rubbish or the ball may not seat properly
    N c. there is an automatic ball check located in a siphon tube
    N d. the small lever to release the rubber ball float must be turned counterclockwise

788: Fires of which class would most likely occur in the engine room of a vessel?

    N a. Classes A and B
    Y b. Classes B and C
    N c. Classes C and D
    N d. Classes A and D

802: A portable dry chemical fire extinguisher discharges by __________.

    N a. gravity when the extinguisher is turned upside down
    Y b. pressure from a small CO2 cartridge on the extinguisher
    N c. air pressure from the hand pump attached to the extinguisher
    N d. pressure from the reaction when water is mixed with the chemical

918: Fires which occur in energized electrical equipment, such as switchboard insulation, are class __________.

    N a. A
    N b. B
    Y c. C
    N d. D

957: An engine compartment gasoline fire requires which type of extinguisher?

    N a. Carbon dioxide
    N b. Dry chemical
    N c. Foam
    Y d. All of the above

967: Gasoline fuel tanks on small passenger vessels must be installed __________.

    Y a. independent of the hull
    N b. on a level higher than the engine
    N c. in a cool and insulated place
    N d. so the fuel line to the engine leads from a shut-off valve at the bottom of the tank

1071: Aboard small passenger vessels, which material may be used for diesel fuel line installations but not for gasoline fuel lines?

    N a. Annealed copper tubing
    N b. Nickel-copper tubing
    N c. Copper-nickel tubing
    Y d. Seamless steel pipe or tubing

1093: On small passenger vessels, which device(s) must be fitted to a fuel line's tank connection?

    N a. A fuel strainer
    Y b. A shut-off valve
    N c. A tubular glass gauge to indicate the fuel level
    N d. All of the above

1108: The vapor pressure of a substance __________.

    Y a. increases with the temperature
    N b. decreases as temperature increases
    N c. is not affected by temperature
    N d. may increase or decrease as the temperature rises

1145: When hoisting a boat on gravity type davits using an electric motor driven winch, the davit arms should be brought up __________.

    N a. to their final position with the winch operating at slow speed
    N b. to the bar stop, and then hand cranked to their final position
    Y c. until just before they make contact with the limit switch, and then hand cranked to their final position
    N d. to the embarkation deck, and then hand cranked to their final position

1296: Hand holds or straps on the underside of an inflatable liferaft are provided __________.

    Y a. to right the raft if it capsizes
    N b. to carry the raft around on deck
    N c. for crewmen to hang on to
    N d. to hang the raft for drying

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

1310: Frapping lines are fitted to lifeboat davits to __________.

    Y a. reduce the swinging of the lifeboat as it is being lowered from the embarkation level
    N b. secure the lifeboat in the davits when in the stowed position
    N c. hold the lifeboat to the ship's side until the tricing lines are passed
    N d. be used as a safety line in an emergency

1351: While operating off the coast of Greece, a seaman is injured. What indicator should be in the preamble of a radio telegram asking for medical advice from a Greek station?

    Y a. RADIO MEDICAL
    N b. DH MEDICO
    N c. MEDICO ELLAS
    N d. MAYDAY

1378: The most effective cooling agent among those normally used to fight fires is __________.

    Y a. water fog or spray
    N b. chemical foam
    N c. mechanical foam
    N d. carbon dioxide

1414: What should be used to steer an open lifeboat if the rudder becomes lost or damaged?

    N a. Sea anchor
    Y b. Steering oar
    N c. Spare rudder
    N d. Daggerboard

1434: Halon fire extinguishers are NOT effective when used on which types of fires?

    N a. Fires in electrical equipment
    N b. Flammable oils and greases
    N c. Class "A" fires in ordinary combustibles
    Y d. Materials containing their own oxygen

1452: First aid means __________.

    N a. medical treatment of accident
    N b. setting of broken bones
    Y c. emergency treatment at the scene of the injury
    N d. dosage of medications

1459: Which data is NOT painted on the bow of a lifeboat?

    N a. Number of persons allowed
    N b. Name of the vessel
    Y c. Weight of the boat
    N d. Port of registry

1586: The success of an indirect attack on a fire depends on the __________.

    N a. size of the fire when initially observed
    Y b. complete containment of the fire
    N c. cooling ability of the firefighting agent
    N d. class of the fire

1807: Which is standing rigging?

    N a. Halyards
    Y b. Stays
    N c. Sheets
    N d. Downhauls

1863: On offshore drilling units, each storage battery for emergency lighting and power systems must be tested every six months under actual connected load for a period of at least __________.

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

2009: Your vessel measures 114 feet long by 16 feet in beam. If the natural rolling period at a draft of 5'-06" is 6 seconds, what is the GM?

    Y a. 1.38 feet
    N b. 1.53 feet
    N c. 1.76 feet
    N d. 1.98 feet

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

2296: Regulations require that cargo pumps in tank vessels carrying grade D liquid cargo shall be isolated from sources of vapor ignition by __________.

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

2429: A vessel trimmed by the stern has a __________.

    N a. list
    Y b. drag
    N c. set
    N d. sheer

2526: 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-0069

    N a. Available GM 4.2 ft
    Y b. Available GM 3.9 ft
    N c. Available GM 3.7 ft
    N d. Available GM 3.5 ft

2602: In order to determine the health hazard data for carbolic acid, you would use that information contained in the Chemical Data Guide for which chemical?

    N a. Acetic oxide
    N b. Carbinol
    N c. Carbon bisulfide
    Y d. Phenol

2743: Compliance with the terms of the load line certificate on a MODU is the responsibility of the __________.

    N a. Ballast Control Operator
    N b. Barge Supervisor
    Y c. Master or Offshore Installation Manager
    N d. operators representative

2923: 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-0088

    N a. Available GM 4.01 ft
    Y b. Available GM 4.16 ft
    N c. Available GM 4.69 ft
    N d. Available GM 4.81 ft

3196: What shall be conducted during a fire and boat drill?

    Y a. All watertight doors in the vicinity of the drill shall be operated.
    N b. All lifeboat equipment shall be examined.
    N c. Fire pumps shall be started and all exterior outlets opened.
    N d. All of the above

3289: A warship indicates that it wishes to communicate with a merchant ship by hoisting __________.

    N a. the merchant ship's identity signal and keeping it hoisted during the entire communication
    N b. the national ensign of the merchant vessel at the starboard yard
    N c. the flags MV close up until acknowledged and then lowering them to the dip
    Y d. the code pennant, and keeping it flying during the entire communication

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"

3870: Each EPIRB required on an OSV shall be tested using the integrated test circuit and output indicator every __________.

    N a. week
    N b. two weeks
    Y c. month
    N d. two months

3891: Which statement is TRUE concerning distress signals in a survival craft?

    Y a. Hand held flares and orange smoke signals are required.
    N b. If hand-held rocket-propelled parachute flares are provided, they are the only distress signals required.
    N c. Two hand-held smoke signals shall be provided.
    N d. A Very pistol with twelve flares is required.

4061: In the DEEP DRILLER, TCG is obtained from the sum of the transverse moments by __________.

    N a. adding the free surface correction
    N b. subtracting the free surface correction
    N c. multiplying by displacement
    Y d. dividing by displacement

4071: The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). What are the new LM (longitudinal moments) if the entire contents of Salt Water Ballast Tanks 1P and 1S are discharged?

    Y a. 5,191 ft-tons
    N b. 13,414 ft-tons
    N c. 31,992 ft-tons
    N d. 69,175 ft-tons

4125: The DEEP DRILLER is observed to be level at a draft of 60.0 feet. At the same time, the calculated load form shows the displacement to be 17,845 long tons, total longitudinal moment 51,466 foot-kips, and total transverse moments -10,000 foot-kips. What is the transverse location of the missing load?

    N a. 36.67 feet
    N b. 0.56 foot
    N c. -0.55 foot
    Y d. -36.67 feet

4404: The letter and number symbols, such as B-II, used to classify portable fire extinguishers indicate the __________.

    Y a. class of fire and size of the extinguisher
    N b. class of fire and location aboard vessel
    N c. extinguishing agent and relative size of the extinguisher
    N d. extinguishing agent and location aboard vessel

4547: What are the vertical moments for 14.0 feet of drill water in the COASTAL DRILLER's #1 drill water tank?

    Y a. 2.455 ft-kips
    N b. 2.543 ft-kips
    N c. 2.725 ft-kips
    N d. 2.997 ft-kips

4647: What is the increase in transverse moments for the Coastal Driller if 2.0 feet of drill water is transferred from a full drill water tank #23 to an empty drill water tank #6?

    Y a. 4783 foot-kips
    N b. 3446 foot-kips
    N c. 2109 foot-kips
    N d. 1234 foot-kips

5481: A common means of connecting shots of anchor chain in the field is to use a __________.

    N a. sprocket
    Y b. Kenter link
    N c. swivel
    N d. end shackle

5587: What is the primary disadvantage of a permanent chain chaser system?

    N a. It requires anchor handling boats with more horsepower.
    N b. Chain chasers work in shallow water only.
    Y c. Chain chasers will not work with piggyback anchors.
    N d. It takes longer to deploy anchors using chain chasers.

5616: You are tending the lifeline of a man who entered a tank using a breathing apparatus. How many tugs on the lifeline indicate that the man should come out immediately?

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

5897: The type of shackle used in making up tow lines to a MODU should be __________.

    N a. screw pin
    N b. chain
    N c. anchor
    Y d. safety

5898: What is the meaning of the signal VJ 8 when sent by the International Code of Signals?

    N a. Winds of force 8 are expected.
    N b. Low clouds cover 8 octants of the sky.
    N c. You should stop hauling your warps.
    Y d. A gale is expected from the north.

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

6245: On board a mobile offshore drilling unit, the key to the most rapid and effective response to a man overboard situation is __________.

    Y a. well-conducted drills
    N b. a dedicated crew
    N c. good equipment
    N d. good communication

6663: A branch line valve of a fire extinguishing system on a MODU must be marked with the __________.

    N a. maximum pressure allowed at that branch
    Y b. name of the space or spaces which it serves
    N c. date of the last maintenance inspection
    N d. pressure needed to maintain an effective stream at that point

7053: When a patient is suspected of having appendicitis, the pain should be relieved by __________.

    Y a. keeping an ice bag over the appendix area
    N b. giving the patient a laxative
    N c. giving the patient morphine sulfate
    N d. giving the patient aspirin with a glass of water

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

7345: What is the average range of vessel-to-vessel VHF-FM radio communications?

    Y a. 15 to 20 miles
    N b. 60 to 90 miles
    N c. 90 to 120 miles
    N d. 120 to 150 miles

7648: Buoyant apparatus are required to be fitted or equipped with all of the following equipment EXCEPT __________. (small passenger vessel regulations)

    N a. life lines
    Y b. paddles
    N c. water lights
    N d. painters

9257: The shear rams of a MODU blowout preventer stack are used in emergency well control to __________.

    N a. close and seal around the drill pipe
    N b. close and seal around casing
    Y c. cut off pipe inside the preventer stack
    N d. close and seal around drill collars