USCG General Deck: 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.


89: Ullage measurements are taken from the top of the liquid to __________.


107: When may a seaman on a vessel engaged in foreign trade be paid before earning the wages?


119: Sour crude oil __________.


154: A look-out at the bow sights an object on your port side. How many bell strokes should he sound?

    N a. One
    Y b. Two
    N c. Three
    N d. Four

185: Before a Master relieves a Pilot of the conn, the __________.

    Y a. Master should foresee any danger to the vessel on the present course
    N b. vessel must be in extremis
    N c. Master should agree to sign a release of liability form
    N d. Master must first request the Pilot to take corrective action

221: A vessel arrives in a foreign port and the Master is informed that the vessel is being sold to foreign interests. The new owners request that the crew remain on board to complete the voyage. Under these circumstances, the crew __________.

    Y a. has the right to an immediate discharge and transportation to original port of engagement
    N b. must remain on board
    N c. must comply with the decision made by the Master
    N d. must remain aboard until the vessel is delivered to the new owners at a mutually agreed upon port

251: A seaman lost his continuous discharge book during the voyage. Upon discharge from Articles, he should be issued a __________.

    N a. letter of service on company letterhead signed and sealed by the master
    N b. Record of Entry in a Continuous Discharge Book for use in applying for a duplicate book
    Y c. Certificate of Discharge with the white copy forwarded to the Commandant
    N d. Mutual Release (CG-2119), and the articles should be annotated as to the loss

290: What is NOT a form used by ice support services to disseminate information?

    N a. Ice Analyses
    N b. Ice Forecasts
    N c. Ice Outlooks
    Y d. Ice Bulletins

327: You are on a multiple product tankship and carrying methyl acrylate, diethanolamine, and triethylamine. Which statement is TRUE?

    N a. Methyl acrylate may be loaded in a tank adjacent to diethanolamine but not triethylamine.
    Y b. The heating coils to the cargo tank loaded with methyl acrylate must be blanked off.
    N c. Valve components made of aluminum, copper, or zinc may not be in contact with the cargoes.
    N d. Each crew member working on deck must have an emergency escape breathing apparatus.

370: Cottonseed oil is classed as a __________.

    Y a. combustible liquid
    N b. flammable liquid
    N c. flammable solid
    N d. poison B

470: A fiber towing hawser should be stowed __________.

    Y a. in an enclosed rope locker with adequate air circulation
    N b. by spooling it on the winch
    N c. by coiling it on deck
    N d. by hanging it in the engineroom

591: What will NOT be found on the Certificate of Inspection of an ocean going tankship?

    N a. Manning requirements
    Y b. Minimum freeboard permitted
    N c. Grade(s) of cargoes that the vessel may carry
    N d. Waters upon which the vessel may be operated

613: A lookout can leave his station __________.

    N a. at the end of the watch
    Y b. only when properly relieved
    N c. at any time
    N d. 15 minutes before the end of the watch

623: When hugging a bank in a narrow channel, you should take precautions against_______________.

    N a. bank suction, squat and the effects of vessels passing close aboard
    N b. clogged sea chests, plugged sea strainers and overheated machinery
    N c. striking underwater obstructions close to the bank
    Y d. All of the above

640: Which factor(s) can affect the performance of a river towboat?

    N a. The draft of the towboat and the draft of the barges under tow
    N b. The placement of the barges within the tow
    N c. The presence of flanking rudders and Kort nozzles
    Y d. All of the above

676: Conditions for crossing a rough bar are usually best at __________.

    N a. low water slack
    Y b. high water slack
    N c. high water ebb
    N d. high water flood

689: When your tug reduces speed to shorten tow, the __________.

    N a. length of the tow gets shorter as the strain is reduced
    N b. tow may continue its momentum and overtake the tug
    N c. towing hawser may drag the bottom and put the tug in irons
    Y d. All of the above

714: Using a safety factor of 6, determine the safe working load of manila line with a breaking stress of 8 tons.

    N a. 0.75 tons
    N b. 1.25 tons
    Y c. 1.33 tons
    N d. 8.00 tons

715: The term "overriding" or "overrunning" when applied to towing, implies that __________.

    N a. there is more crew on board than required
    Y b. the tow has overtaken its tug
    N c. the towing hawser comes out of the water
    N d. the Norman pins are not effective

865: A nylon line is rated at 15,000 lbs. breaking strain. Using a safety factor of 5, what is the safe working load (SWL)?

    Y a. 3,000 lbs
    N b. 5,000 lbs
    N c. 15,000 lbs
    N d. 65,000 lbs

871: In writing up the logbook at the end of your watch, you make an error in writing an entry. What is the proper means of correcting this error?

    Y a. Cross out the error with a single line, and write the correct entry, then initial it.
    N b. Carefully and neatly erase the entry and rewrite it correctly.
    N c. Remove this page of the log book, and rewrite all entries on a clean page.
    N d. Blot out the error completely and rewrite the entry correctly.

872: In a foreign port with a consulate, the U.S. Consul may excuse the Master from personally appearing before him to consent to the mutual release of an injured seaman, when the __________.

    Y a. injury requires immediate inpatient hospitalization of the seaman
    N b. Master authorizes the agent to act in his place
    N c. ship is still in port and the seaman can appear before the Consul after medical treatment
    N d. seaman also consents to the absence, and there is no dispute as to the wages due

908: You must load as much of a large shipment of case goods as possible into a hold which has 24,400 cubic feet of space. Each case measures 2 feet by 2 feet by 4 feet and weighs 448 pounds. If you allow for broken stowage of 15%, how many long tons can be loaded?

    N a. 54
    N b. 207
    Y c. 259
    N d. 351

961: Which log includes a statement of the conduct, ability, and character of each crew member on the completion of a voyage?

    Y a. Official Logbook
    N b. Department Logbook
    N c. Crew Logbook
    N d. Smooth Logbook

976: When the period of beam seas equals the natural rolling period of a vessel, what will most likely occur?

    N a. Excessive pitching
    N b. Excessive yawing
    Y c. Excessive rolling
    N d. No change should be evident

1018: Which U.S. Government agency can suspend or revoke a Merchant Mariner's license for violating the load line act?

    N a. American Bureau of Shipping
    Y b. U.S. Coast Guard
    N c. U.S. Customs Service
    N d. U.S. Maritime Administration

1029: When cleaning a tank by the Butterworth process, you should begin to pump out the slops __________.

    N a. at the end of the drop schedule
    Y b. when the process is started
    N c. when the process is finished
    N d. when the tank is clean

1030: If an attempt is made to hoist a load that exceeds the capacity of an electric winch, an overload safety device causes a circuit breaker to cut off the current to the winch motor __________.

    N a. when the line pull reaches the rated winch capacity
    Y b. after the line pull exceeds the rated winch capacity
    N c. after a short build-up of torque
    N d. immediately

1130: The fittings used to secure a watertight door are known as __________.

    N a. clamps
    N b. clasps
    Y c. dogs
    N d. latches

1203: Under defense plans, operation of electronic aids may be temporarily suspended with __________.

    N a. one day's notice
    Y b. no notice
    N c. thirty (30) day's notice
    N d. a week's notice

1313: Where should a vessel being towed alongside be positioned for increased maneuverability?

    N a. Stern of the towed vessel aft of the stern of the towing vessel
    N b. Stern of the towed vessel even with the stern of the towing vessel
    Y c. Stern of the towed vessel forward of the stern of the towing vessel
    N d. Bow of the towed vessel even with the bow of the towing vessel

1384: The wire rope used for cargo handling on board your vessel has a safe working load of eight tons. It shall be able to withstand a breaking test load of __________.

    N a. 32 tons
    Y b. 40 tons
    N c. 48 tons
    N d. 64 tons

1414: A wire rope that has been overstrained will show __________.

    N a. a bulge in the wire where the strain occurred
    Y b. a decrease in diameter where the strain occurred
    N c. a kink in the wire where the strain occurred
    N d. no visible effects of an overstrain

1549: On your vessel, a wire rope for the cargo gear shows signs of excessive wear and must be replaced. In ordering a new wire for this 10-ton boom, what safety factor should you use?

    N a. Three
    Y b. Five
    N c. Six
    N d. Seven

1628: You are going ahead on twin engines when you want to make a quick turn to port. Which actions will turn your boat the fastest?

    Y a. Reverse port engine; apply left rudder
    N b. Reverse port engine; rudder amidships
    N c. Reverse starboard engine; apply left rudder
    N d. Reverse starboard engine; rudder amidships

2016: The revolving drum of a winch used to haul lines is called a __________.

    N a. bull gear
    Y b. gypsyhead
    N c. spanner
    N d. wildcat

2034: You are ordering a new block to use with a 3-inch circumference manila line. Which represents a proper size block for this line?

    N a. 6-inch cheek, 4-inch sheave
    N b. 8-inch cheek, any size sheave
    Y c. 9-inch cheek, 6-inch sheave
    N d. At least a 12-inch sheave

2137: The securing systems for containers were developed to prevent container movement during which ship motion?

    N a. Surge
    Y b. Roll
    N c. Sway
    N d. Yaw

2173: What is the name of tackle number 5? (DO29DG )

    N a. 3-2 purchase
    Y b. Double luff tackle
    N c. Two-fold purchase
    N d. Four-fold whip

2193: You have determined the maneuvering characteristics of your vessel by taking the radar ranges and bearings of an isolated light while making a turn. The results are listed in illustration D035DG. Based on this data what is the tactical diameter of the turning circle? (D035DG )

    N a. 755 yards
    N b. 780 yards
    N c. 820 yards
    Y d. 880 yards

2286: Cargo that is highly susceptible to damage by tainting from odorous cargo is called __________.

    N a. clean cargo
    Y b. delicate cargo
    N c. dry cargo
    N d. immune cargo

2390: Determine the weight of a rectangular piece of 20.4 lb. steel measuring 4 feet by 6 feet.

    N a. 204.0 lbs.
    Y b. 489.6 lbs.
    N c. 734.4 lbs.
    N d. 979.2 lbs.

2398: How many tons of salt water can be loaded into a flat-ended cylindrical tank with a diameter of 4.5 feet and a length of 8 feet?

    N a. 1.82
    Y b. 3.64
    N c. 7.27
    N d. 14.54

2581: How does the effect known as "bank suction" act on a single-screw vessel proceeding along a narrow channel?

    Y a. It pulls the stern toward the bank.
    N b. It heels the vessel toward the bank.
    N c. It pushes the entire vessel away from the bank.
    N d. It pulls the bow toward the bank.

2595: Yawing can be described as __________.

    N a. jumping on the towline as the tow pitches
    N b. jumping on the towline as the tow slams into waves
    Y c. veering from side to side on the end of the towline
    N d. corkscrew motion of the tow due to wave action

2868: Which vessel, if navigating independently in ice, is more likely to become beset due to inadequate horsepower?

    N a. A 254 ft. "Whaleback" tanker with 1800 H.P.
    N b. A 309 ft. cement carrier with 2000 H.P.
    N c. A 385 ft. shallow draft tanker with 2400 H.P.
    Y d. A 630 ft. bulk ore carrier with 3500 H.P.

2876: A U.S. Coast Guard icebreaker may use all of the following distinctive lights when escorting ships in ice EXCEPT __________.

    N a. a single amber rotating light
    N b. a single red rotating light
    N c. red aircraft warning lights
    Y d. a single blue rotating light

2911: The wooden plug inserted in the vent of a damaged tank should be removed if you are going to __________.

    Y a. pump from the damaged tank
    N b. fight a fire
    N c. abandon ship
    N d. use the crossover system

2918: What is the period of validity of a De-Rat certificate?

    N a. Specific voyage
    Y b. 6 months
    N c. 1 year
    N d. 2 years

3050: Which characteristic is an advantage of a butterfly valve as compared to a gate valve?

    N a. Precise control over cargo flow
    Y b. Quick operation
    N c. No resistance to cargo flow when open
    N d. Less maintenance required

3078: Another name for coal naphtha that would appear on a dangerous cargo manifest is __________.

    Y a. benzene
    N b. tar
    N c. middle oil
    N d. toluene

3270: A vessel is tide rode when it is __________.

    N a. carrying extra rudder to compensate for the current
    N b. necessary to adjust the course steered to allow for the current
    Y c. at anchor and stemming the current
    N d. being forced off of a pier by the hydraulic effect of the current

3411: When steering a vessel, a good helmsman does NOT __________.

    N a. consider steering a vessel a highly responsible job
    N b. use as little rudder as possible to maintain course
    Y c. use as much rudder as possible to keep the vessel on course
    N d. advise his relief of the course being steered

3440: The circular steel structure installed around the propeller of a towboat is the __________.

    Y a. nozzle
    N b. shroud
    N c. strut
    N d. hood

3465: Which type of anchor is illustrated? (D038DG )

    Y a. Stockless
    N b. Danforth
    N c. Old-fashioned
    N d. Kedge

3644: You are drifting in a locale where there is no current. As a rule, your vessel will lie __________.

    N a. bow to the wind
    Y b. beam to the wind
    N c. stern to the wind
    N d. with the wind on the quarter

3689: The wildcat is linked to the central drive shaft on most windlasses by __________.

    N a. an electromagnetic brake
    N b. a hydraulic coupling
    N c. aligning the keyways on both and inserting a key
    Y d. a mechanical coupling where lugs engage detents

4071: The head block is located___________.

    N a. at the base of the boom
    Y b. at the head of the boom
    N c. at the head of the mast
    N d. on top of the jack staff

4248: Which of the following statements is/are TRUE regarding crane operations?

    Y a. The crane operator and signalman must be familiar with hand signals.
    N b. The cranes can be operated from shoreside.
    N c. The cranes can be operated from the bridge.
    N d. All of the above

4280: Which statement is FALSE concerning a tagline as used with a 30-ton pedestal crane?

    Y a. Taglines are wire rope purchases that raise and lower the jib.
    N b. Taglines are wire ropes for horizontal positioning of the rider block.
    N c. Taglines can be fastened to corners of vehicles or containers.
    N d. The crane might not have taglines installed in its rigging system.