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?


57: The minimum concentration of a vapor in air which can form an explosive mixture is called the __________.


102: You are underway when a fire breaks out in the forward part of your vessel. If possible, you should __________.


127: Before welding in a tank that has carried petroleum products, the tank must be certified by __________.

    N a. the Coast Guard
    N b. the American Bureau of Shipping
    N c. the shipyard fire department
    Y d. a certified marine chemist

145: Which statement concerning an accidental oil spill in the navigable waters of the U.S. is TRUE?

    N a. The Corps of Engineers is responsible for the clean up of the spill.
    N b. The Department of Interior is responsible for the clean up of the spill.
    N c. A warning broadcast must be made by radiotelephone.
    Y d. The person in charge must report the spill to the Coast Guard.

440: You are making a heavy lift with the jumbo boom. Your vessel displaces 8390 T. The 40 ton weight is on the pier and its center is 55' to starboard of the centerline. The head of the boom is 110' above the base line and the center of gravity of the lift when stowed on deck will be 45' above the base line. As the jumbo boom takes the strain the ship lists to 3.5°. What is the GM with the cargo stowed?

    Y a. 4.58 feet
    N b. 4.27 feet
    N c. 3.93 feet
    N d. 3.68 feet

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

522: A spanner is a __________.

    N a. cross connection line between two main fire lines
    Y b. special wrench for the couplings in a fire hose line
    N c. tackle rigged to support a fire hose
    N d. None of the above

758: A fire is discovered in the forepeak of a vessel at sea. The wind is from ahead at 35 knots. You should __________.

    N a. remain on course and hold speed
    Y b. change course and put the stern to the wind
    N c. change course to put the wind on either beam and increase speed
    N d. remain on course but slack the speed

938: A magnesium fire is classified as class __________.

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

979: When should you first have any food or water after boarding a lifeboat or liferaft?

    N a. After 12 hours
    Y b. After 24 hours
    N c. Within 48 hours
    N d. Some food and water should be consumed immediately and then not until 48 hours later.

1201: While taking on fuel oil, the transfer hose leaks causing a sheen on the water. You should __________.

    N a. apply dispersants to the sheen
    N b. repair the leak with duct tape
    N c. reduce the rate of transfer
    Y d. shut down operations

1224: In order to retrieve an inflatable liferaft and place it on deck, you should heave on the __________.

    N a. lifelines
    N b. righting strap
    N c. sea anchor
    Y d. towing bridle

1403: Which action must be taken when an individual cargo tank is closed off from the inert gas system by the tank isolation valve?

    N a. The tank must be gas freed.
    N b. The tank must be ballasted.
    Y c. The tank must be vented to the atmosphere.
    N d. The bypass valve must also be closed.

1464: What is NOT a function of the air supply of a covered lifeboat?

    N a. Provides air for engine combustion
    Y b. Pressurizes water spray system
    N c. Provides air for passenger respiration
    N d. Prevents smoke and other noxious fumes from entering craft

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"

1537: How should longitude 119°56.3'W be written when preparing an AMVER report?

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

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

1772: The definition of "partially protected waters", as used in the Regulations does not include __________.

    N a. harbors, lakes and similar waters determined by the OCMI to be protected waters
    N b. waters within 20 nautical miles from the mouth of a harbor of safe refuge
    N c. the Great Lakes during the summer season
    Y d. sheltered waters presenting no special hazard

1793: What is the minimum permit or license requirement of a GMDSS Radio Maintainer?

    N a. Holding the Marine Radio Operator Permit is a pre-requisite before the GMDSS Maintainer Endorsement can be obtained
    N b. Holding a valid GMDSS Radio Operator license is sufficient
    Y c. Holding the GMDSS Radio Maintainer license is sufficient
    N d. Holding the GMDSS Radio Operator license for at least one year is a prerequisite to holding the GMDSS Radio Maintainer license

1820: Your voyage planning indicates you will arrive at a waypoint in longitude 49°16.3'E at 0947 ZT on 3 March 1988. How should this date be entered into an AMVER report?

    N a. 030947C MAR
    N b. 03094703
    N c. 06470303Z
    Y d. 030647Z MAR

1906: Your vessel displaces 930 tons and measures 156'L by 38'B. What is the reduction in GM due to free surface if the fish hold (46'L by 28'B by 8'D) is filled with 1.5 feet of water? (Each foot of water weighs 36.8 tons)

    N a. 2.16 feet
    Y b. 2.44 feet
    N c. 2.75 feet
    N d. 2.99 feet

1958: You have 710 tons of below deck tonnage. There is no liquid mud aboard. If you have 150 tons of cargo above deck with a VCG above the deck of 3.1 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. 1.84 feet
    N b. 2.13 feet
    N c. 2.43 feet
    Y d. 2.78 feet

2103: All lifeboats, rescue boats, and rigid-type liferafts shall be stripped, cleaned, and thoroughly overhauled at least once every __________.

    Y a. year
    N b. 18 months
    N c. two years
    N d. 30 months

2202: Which approved lifesaving device is required for each person on board a motor vessel carrying passengers?

    N a. Buoyant cushion
    N b. Buoyant vest
    Y c. Life jacket
    N d. Ring life buoy

2264: Where a propeller shaft passes through the hull, water is prevented from entering by means of a __________.

    Y a. stuffing box
    N b. propeller boss
    N c. seacock
    N d. stop-water

2480: According to the Chemical Data Guide, what is NOT a recommended extinguishing agent for an ethyl chloride fire?

    N a. CO2
    Y b. Alcohol foam
    N c. Dry chemical
    N d. Water fog

2580: If your JP-5 barge has operated in saltwater for less than 1 month in the 12 month period since it was last dry-docked, when is it required to be hauled out again?

    Y a. 60 months since last dry-docking
    N b. 36 months since last dry-docking
    N c. 24 months since last dry-docking
    N d. 12 months since last dry-docking

2729: You are approaching another vessel and see that it has the signal flag "O" hoisted. What is your next action?

    N a. Proceed on present course and speed since the vessel is requesting a pilot.
    Y b. Attempt to call the vessel on VHF radiotelephone and begin a search because the vessel has a man overboard.
    N c. Attempt to call the vessel on VHF radiotelephone because it is disabled.
    N d. Approach with caution because the vessel is stopped and making no way through the water.

3106: The SS AMERICAN MARINER has on board 5480 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-0105

    N a. LCG-FP 272.2 feet
    N b. LCG-FP 268.3 feet
    Y c. LCG-FP 265.1 feet
    N d. LCG-FP 263.4 feet

3245: The SS AMERICAN MARINER will sail with the load shown. Use the white pages of The Stability Data Reference Book to determine the drafts. ST-0115

    Y a. FWD 25'-02", AFT 29'-10"
    N b. FWD 25'-06", AFT 29'-06"
    N c. FWD 27'-10", AFT 26'-02"
    N d. FWD 29'-11", AFT 25'-04"

3278: Gasoline tanks should be filled __________.

    N a. to the top to expel all vapors from the tanks
    N b. to the top so the operator is certain how much fuel he has aboard
    N c. with only sufficient fuel for the planned trip so excess gasoline is not carried
    Y d. to near the top with some space allowed for gasoline expansion

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

3372: Which statement is FALSE concerning precautions during small craft fueling operations?

    N a. All engines, motors, fans, etc. should be shut down when fueling.
    N b. All windows, doors, hatches, etc. should be closed.
    N c. A fire extinguisher should be kept nearby.
    Y d. Fuel tanks should be topped off with no room for expansion.

3374: What is NOT listed on the metallic name plate required to be attached to hand portable fire extinguishers? (Uninspected Vessel Regulations)

    N a. The rated capacity in gallons, quarts, or pounds
    Y b. The hydrostatic test date of the cylinder
    N c. The name of the item
    N d. An identifying mark of the actual manufacturer

3648: All of the following are recognized distress signals under the Navigation Rules EXCEPT __________.

    Y a. a green star signal
    N b. orange-colored smoke
    N c. red flares
    N d. the repeated raising and lowering of outstretched arms

3725: A crew member has suffered frostbite to the toes of both feet. You should __________.

    Y a. immerse the feet in warm water
    N b. warm the feet with a heat lamp
    N c. warm the feet at room temperature
    N d. rub the feet

3746: A conscious victim who has suffered a blow to the head has symptoms that indicate the possibility of concussion. If the patient feels no indication of neck or spine injury, recommended treatment would include __________.

    N a. turning the victim's head to the side to keep his airway open
    N b. positioning the victim so the head is lower than the body
    N c. giving the victim water if he is thirsty, but no food
    Y d. elevating the head and shoulders slightly with a pillow

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

3769: You hear the general alarm and ship's whistle sound for over 10 seconds. Traditionally, this is the signal for __________.

    N a. abandon ship
    N b. dismissal from fire and emergency stations
    Y c. fire and emergency
    N d. man overboard

3801: What are the vertical moments for the cement contents of P-tank #1 of the DEEP DRILLER if the ullage is 2.3 feet?

    N a. 4,198 ft-tons
    Y b. 7,067 ft-tons
    N c. 7,096 ft-tons
    N d. 14,921 ft-tons

4019: The regulations for a general alarm system on a towing vessel require all of the following EXCEPT that it ___________ .

    N a. be capable of notifying persons in any accommodation, work space and the engine room
    N b. have a contact maker at the operating station
    N c. have a flashing red light in areas that have high background noise
    Y d. be used instead of the public address system

4120: Which of the following would be of immediate concern after discovering a large fire in the ship's galley?

    N a. An adjacent storeroom, containing spare parts
    Y b. A storeroom directly above, containing combustible fluids
    N c. An adjacent storeroom, containing mattresses and linen
    N d. An adjacent storeroom, marked "Stewards Stores"

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

4387: The COASTAL DRILLER is elevated in 192 feet of water. Leg penetration is 83 feet. The maximum leg reaction is 5,940 kips. The waves are 30 feet and the current is 2 knots. What is the maximum wind for drilling?

    N a. 45 knots
    Y b. 50 knots
    N c. 57 knots
    N d. 62 knots

4413: The COASTAL DRILLER, while in a normal transit, experiences single amplitude rolling of three degrees. What is the minimum period of roll which does not exceed the design limits of the legs?

    N a. 1.5 seconds
    N b. 3.0 seconds
    Y c. 5.5 seconds
    N d. 7.0 seconds

5435: The COASTAL DRILLER is operating with a wave clearance of about 20 feet. The out-of-level alarm sounds and the unit is found to be inclined 0.5 degree bow down. The recommended course of action is to __________.

    N a. prepare to take action in case inclination increases
    N b. jack the hull up on the bow leg
    Y c. jack the hull down on the aft two legs
    N d. transfer weight, such as drill water, toward the stern

6093: On offshore drilling units where foam systems are installed on the heliport, the system must be able to discharge continuously for at least __________.

    Y a. 5 minutes
    N b. 6 minutes
    N c. 8 minutes
    N d. 10 minutes

6175: It is the responsibility of the Master or person in charge of a MODU to ensure that __________.

    N a. the Muster List ("Station Bill") is posted in each compartment
    Y b. temporary personnel and visitors are advised of emergency stations
    N c. names of crew members are listed on the Muster List ("Station Bill")
    N d. no changes are made to the Muster List ("Station Bill")

6705: The immersion suit requirements for MODU's apply to units operating in the Atlantic Ocean above __________.

    N a. 20°North and below 20°South
    N b. 25°North and below 25°South
    N c. 30°North and below 30°South
    Y d. 32°North and below 32°South

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

7951: What is the chief advantage of an SCR or AC-DC system over a straight DC system for powering drilling rig machinery?

    N a. Commutators are eliminated.
    N b. Several machines can be operated from a DC bus.
    N c. SCR systems are simpler.
    Y d. Required power can be drawn from a common AC bus.

8107: What is the minimum required GML for the DEEP DRILLER in winds less than 70 knots while at a draft of 60 feet?

    N a. 0.17 foot
    Y b. 2.63 feet
    N c. 4.34 feet
    N d. 9.12 feet

8183: When extracting the legs from the soil, the hull of the COASTAL DRILLER may be pulled down until the draft is __________.

    N a. at the maximum load line draft
    N b. one foot less than maximum load line draft
    N c. one foot deeper than maximum load line draft
    Y d. one foot deeper than calculated afloat draft

8477: You are on a semisubmersible being towed and are concerned that a fishing vessel is not taking sufficient action to avoid you. To signal your concern, you should __________.

    N a. fire a red flare at 15 second intervals
    N b. fire a green flare at 15 second intervals
    Y c. sound five or more short blasts on the whistle
    N d. broadcast a Mayday message on the radiotelephone

8635: A weight of 1,000 kips is equivalent to __________.

    N a. 1,000 pounds
    N b. 2,000 short tons
    N c. 2,240 pounds
    Y d. 500 short tons

8707: The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). If port valves 24 and 2 are mistakenly opened, the change in inclination will be increasing trim by the __________.

    Y a. bow with port list
    N b. bow
    N c. stern
    N d. stern with starboard list

9247: What type of test determines the pressure at which the formation immediately below the last set casing will take fluid?

    N a. Production
    N b. Drill stem
    Y c. Leak-off
    N d. Conductor

9285: A floating jack-up with displacement of 16,200 kips has its LCG 110.37 feet aft of frame zero (AF0). If 200 short tons are discharged from 120 feet AF0 and 400 short tons are discharged from 150 feet AF0, what is the new LCG?

    Y a. 108.0 feet
    N b. 109.2 feet
    N c. 110.4 feet
    N d. 115.8 feet

9547: A neutral equilibrium position for a vessel means that the metacenter is __________.

    N a. lower than the keel
    Y b. at the same height as the center of gravity
    N c. exactly at midships
    N d. at the center of the waterplane area