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.


30: Transverse stability calculations require the use of __________.


174: If you sent out a signal on 12 March 1980, the date would be indicated by __________.


473: Each small passenger vessel that operates on the high seas, or beyond 3 miles from the coastline of the Great Lakes must have a Category 1 406 MHz EPIRB that __________.


736: How many liters of water per person must be carried in lifeboats on a tankship sailing a coastwise route?

    N a. None
    N b. One
    N c. Two
    Y d. Three

821: Bleeding from a vein is __________.

    Y a. dark red and has a steady flow
    N b. bright red and slow
    N c. bright red and spurting
    N d. dark red and spurting

854: If an ill crew member is beginning to show signs of improvement, what code should your message contain?

    N a. MVP
    N b. MPH
    Y c. MPF
    N d. MSO

901: A squeeze-grip type carbon dioxide portable fire extinguisher has been partially discharged. It should be __________.

    N a. replaced in its proper location if weight loss is no more than 15%
    N b. replaced in its proper location if weight loss is no more than 25%
    Y c. labeled empty and recharged as soon as possible
    N d. labeled empty and replaced in its proper location regardless of weight

1081: All of the following are part of the fire triangle EXCEPT __________.

    N a. heat
    N b. oxygen
    N c. fuel
    Y d. electricity

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

1213: When a wind force causes a vessel to heel to a static angle, the __________.

    N a. centers of buoyancy and gravity are in the same vertical line
    Y b. righting moment equals the wind-heeling moment
    N c. center of buoyancy remains the same
    N d. deck-edge immersion occurs

1619: 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

1688: Each commercial fishing vessel must have at least one immersion suit, exposure suit, or life preserver for each __________.

    Y a. person aboard
    N b. person working on deck
    N c. crew member
    N d. None of the above are correct.

1804: Your vessel displaces 869 tons and measures 136'L x33'B. You ship a large wave on the after deck which measures 52'Lx 33'B. The weight of the water is estimated at 52.8 tons. What is the reduction in GM due to free surface before the water drains overboard?

    Y a. 4.83 feet
    N b. 5.12 feet
    N c. 5.46 feet
    N d. 5.85 feet

1963: How is a distress message normally initiated through INMARSAT?

    N a. All INMARSAT units have a dedicated key that can be pressed for immediate action.
    N b. By adding the word "DISTRESS" in the first line of the message's preamble
    Y c. Certain INMARSAT units have a dedicated key that can be pressed for immediate action, while other systems provide menu-driven features.
    N d. By transmitting the distress message on the U.S. Coast Guard's dedicated monitoring channel.

2033: How is "radio silence" imposed?

    Y a. By the Rescue Coordination Center (RCC) controlling the distress communications on that frequency or channel
    N b. By the Coast Earth Station (CES) controlling the distress communications on that frequency or channel
    N c. By the Public Correspondence Station (PCS), controlling the distress communications on that frequency or channel
    N d. By the High Seas Service (HSS) controlling the distress communications on that frequency or channel.

2146: Aboard damaged vessels, the MOST important consideration is preserving __________.

    N a. bilge pumping capacity
    Y b. reserve buoyancy
    N c. level attitude
    N d. instability

2149: On a barge carrying grade A cargo, who determines where smoking may be permitted during a loading operation?

    N a. The OCMI who issued the Certificate of Inspection
    Y b. The certificated tankerman on duty
    N c. The vessel owner
    N d. Smoking is not permitted during a loading operation.

2260: You are making a heavy lift with the jumbo boom. Your vessel displaces 18,000 T. The 50-ton weight is on the pier, and its center is 75 feet to starboard of the centerline. The head of the boom is 112 feet above the base line, and the center of gravity of the lift when stowed on deck will be 56 feet above the base line. As the jumbo boom takes the strain, the ship lists 3.5°. What is the GM when the cargo is stowed?

    N a. 3.19 feet
    N b. 3.24 feet
    N c. 3.40 feet
    Y d. 3.56 feet

2430: What is an example of a grade A flammable liquid?

    N a. Ethylene dibromide
    N b. Methyl alcohol
    N c. Nonyl phenol
    Y d. Pentane

2478: Depending on its concentration, which product(s) can be classified as either grade D or E?

    N a. Sulfuric acid
    Y b. Formaldehyde solutions 37% to 50%
    N c. 1,1,1-trichloroethane
    N d. All of the above

2607: The tendency of a grade "B" product to vaporize is indicated by its __________.

    Y a. flash point
    N b. convection index
    N c. flammable range
    N d. ignition temperature

2614: What is required in addition to the heat, fuel, and oxygen of the fire triangle to have a fire?

    N a. Smoke
    N b. Electricity
    N c. Pressure
    Y d. Chain reaction

2654: Name one major advantage of transporting gas under refrigeration.

    N a. It increases its volume.
    Y b. It reduces its volume.
    N c. It has less product per volume.
    N d. None of the above

2819: Distress flares and smoke signals are not required on vessels operating on short runs. A "short run" is limited to __________. (small passenger vessel regulation)

    N a. water of less than 20 feet in depth
    N b. where land is always in sight
    N c. no more than 5 miles
    Y d. about 30 minutes away from the dock

2854: The sailing drafts are: FWD 14'-08", AFT 15'-06" and the GM is 4.8 feet. Use the information in Section 1, the blue pages, of the Stability Data Reference Book, to determine the available righting arm at 40° inclination.

    N a. 3.3 feet
    N b. 3.7 feet
    Y c. 4.3 feet
    N d. 5.4 feet

2921: A MODU is inclined at an angle of loll. In the absence of external forces, the righting arm (GZ) is __________.

    N a. positive
    N b. negative
    Y c. zero
    N d. vertical

3078: If you see an individual fall overboard, you should __________.

    N a. throw him/her a life buoy
    N b. hail "man overboard"
    N c. pass the word to the bridge
    Y d. All of the above

3086: Which barge in your tow would require a cargo information card to be carried in the pilothouse?

    N a. A tank barge with a sign reading "No Visitors, No Smoking, No Open Lights"
    N b. An open hopper barge carrying coal
    N c. A gas-free chlorine barge
    Y d. An empty (not gas-free) barge that last carried benzene

3531: The draft of the DEEP DRILLER in the lightweight condition is __________.

    Y a. 16.19 feet
    N b. 17.71 feet
    N c. 17.96 feet
    N d. 18.35 feet

3616: Which radiotelephone signal indicates receipt of a distress message?

    Y a. Received mayday
    N b. Roger wilco
    N c. Seelonce
    N d. Mayday wilco

3703: While loaded as shown in Sample Load Form #5 (Survival), an estimated 250 long tons of snow and ice accumulates on the DEEP DRILLER at an estimated height of 127 feet. Assuming no corrective ballasting, what is the new height of the center of gravity corrected for longitudinal free surface effects?

    N a. 58.78 feet
    Y b. 60.68 feet
    N c. 61.53 feet
    N d. 62.78 feet

3754: 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

3888: CATEGORY I EPIRB's transmit on frequencies that are monitored by __________.

    Y a. orbiting satellites in space
    N b. commercial radio stations
    N c. private, commercial, and military aircraft
    N d. Both A & C

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

3996: The SS AMERICAN MARINER has the following drafts: FWD 08'-11.5", AFT 15'-11.5". Upon completion of loading and bunkering the items listed will be on board. Use the white pages of The Stability Data Reference Book to determine the minimum GM required to meet a one compartment standard. ST-0151

    N a. 2.85 feet
    N b. 2.65 feet
    Y c. 2.36 feet
    N d. 2.15 feet

4117: 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 would you find the answer?

    Y a. Subchapter T
    N b. Subchapter Q
    N c. Subchapter F
    N d. Subchapter C

4134: Dual electro-hydraulic steering units usually operate __________.

    N a. with both pumps on line at the same time
    Y b. with one pump on standby
    N c. with the follow-up gear disconnected
    N d. only when the rudder is moved amidships

4341: The COASTAL DRILLER is elevated to an air gap of 25 feet in 250 feet of water. The current is 2 knots and the waves are 30 feet. The maximum leg reaction is 6,120 kips. What is the maximum wind for drilling operations?

    N a. 100 knots
    N b. 70 knots
    N c. 60 knots
    Y d. 40 knots

4347: In using the Allowable Wind and Wave Charts for the COASTAL DRILLER, leg penetration is assumed to be less than __________.

    N a. 55 feet
    N b. 45 feet
    N c. 35 feet
    Y d. 25 feet

4457: Prior to entering a davit-launched liferaft, you should make sure that __________.

    Y a. the liferaft is well ventilated of excess carbon dioxide
    N b. all personnel have removed their life preservers to facilitate boarding
    N c. the door flap has been cut away and stowed inside the raft
    N d. All of the above

4515: A survival craft being used to pick up a person who has fallen overboard from a MODU should approach the person __________.

    N a. at a high rate of speed
    N b. under oars
    Y c. against the wind
    N d. with the wind

5431: The COASTAL DRILLER, loaded as shown in the Sample Load Form #4 (Storm), discharges all the bulk in the four bulk tanks. What is the new TCG?

    N a. -1.11 feet
    N b. -0.47 foot
    N c. 1.07 feet
    Y d. 1.11 feet

5433: It is vital to the safety of the elevated COASTAL DRILLER that the hull be kept above __________.

    N a. the charted water depth
    N b. the charted water depth plus tidal corrections
    N c. the still water level
    Y d. wave action

5665: When clear ice is present while drilling, the vertical transverse moments of the DEEP DRILLER are increased by __________.

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

5691: In a storm, the windward lines of a MODU's mooring system provide __________.

    N a. a positive righting moment
    N b. an increase in KM
    N c. a negative restoring force
    Y d. a positive restoring force

5946: The SS AMERICAN MARINER has drafts of: FWD 25'-11", AFT 26'-11". Use the white pages of the Stability Data Reference Book to determine the drafts if you ballast the forepeak with 83 tons of seawater.

    N a. FWD 26'-05.6", AFT 26'-07.5"
    N b. FWD 26'-06.2", AFT 26'-06.9"
    Y c. FWD 26'-06.8", AFT 26'-06.3"
    N d. FWD 26'-07.7", AFT 26'-05.4"

6091: Due to the hazards involved with Halon extinguishers on a MODU, the size II extinguisher may only be used __________.

    Y a. outside
    N b. on class C fires
    N c. in an emergency
    N d. on class B fires

6675: According to the MODU regulations, the capacity of a liferaft is required to be marked __________.

    N a. on the Muster List ("Station Bill")
    Y b. on a sign next to the liferaft
    N c. on the Certificate of Inspection
    N d. in the Operations Manual

6957: Regulations require certain records to be retained on board for at least 3 months after a MODU is involved in a casualty or until advised that they are no longer needed on board by the __________.

    N a. owner
    N b. Master
    N c. person in charge
    Y d. Officer in Charge, Marine Inspection

7037: Epilepsy is a chronic nervous disorder characterized by __________.

    N a. severe nausea and cramps
    Y b. muscular convulsions with partial or complete loss of consciousness
    N c. sudden thirst and craving for candy
    N d. severe agitation and desire to get out of closed spaces

7393: When a davit-launched raft is lowered from a MODU, upon becoming waterborne, the raft is released by __________.

    N a. activating the release lock of the hook
    N b. pulling smartly on the knobbed cocking lanyard
    Y c. the effects of buoyancy removing the weight of the raft from the hook
    N d. releasing the boarding flap and the bowsing lines

7595: For a vessel inclined by the wind, multiplying the buoyant force by the horizontal distance between the lines of action of the buoyant and gravity forces gives the __________.

    Y a. righting moment
    N b. vertical moment
    N c. longitudinal moment
    N d. transverse moment

8333: Individuals who have consumed alcohol within 24 hours of exposure to H2S can tolerate __________.

    N a. unusually large concentrations of H2S
    Y b. smaller than normal concentrations of H2S
    N c. moderate concentrations of H2S without the usual reactions
    N d. longer exposure to H2S concentrations

8342: Blocking open or removing fire dampers can cause __________.

    N a. the accumulation of explosive gases
    Y b. the fire to spread through the ventilation system
    N c. faster cooling of the fire
    N d. fixed foam systems to be ineffective

8351: What is a pinion in a jacking system?

    N a. Flexible coupling
    N b. Flexible shaft
    N c. Flexible joint
    Y d. Gearwheel

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

9001: The difference between the starboard and port drafts caused by shifting a weight transversely is __________.

    Y a. list
    N b. heel
    N c. trim
    N d. flotation

9331: Paints and solvents on a vessel should be __________.

    N a. stored safely at the work site until work is completed
    Y b. returned to the paint locker after each use
    N c. covered at all times to protect from ignition sources
    N d. stored in a suitable gear locker

9427: In the absence of external forces, adding weight on one side of a floating vessel causes the vessel to __________.

    N a. heel until the angle of loll is reached
    Y b. list until the center of buoyancy is aligned vertically with the center of gravity
    N c. trim to the side opposite TCG until all moments are equal
    N d. decrease draft at the center of flotation

9543: Stable equilibrium for a vessel means that the metacenter is __________.

    N a. at a lower level than the baseline
    N b. on the longitudinal centerline
    Y c. higher than the center of gravity
    N d. at amidships