USCG Master/Mate Great Lakes and Inland 100 GRT

Under Inland Rule 34(e), a vessel nearing a bend where approaching vessels may be hidden by an intervening obstruction shall sound:

• AOne prolonged blast, which is answered with a prolonged blast by any approaching vessel w…
• BTwo short blasts, which need not be answered
• CFive short and rapid blasts until the bend is cleared
• DThree short blasts followed by one prolonged blast

Under Rule 19, a vessel that hears apparently forward of her beam the fog signal of another vessel, where risk of collision has not been ruled out, shall:

• AReduce speed to the minimum at which she can be kept on course, taking all way off if nec…
• BHold her speed and alter boldly to port
• CContinue at safe speed without any further reduction
• DSound the doubt signal and stop her engines only after sighting the other vessel

Inland Rule 34(b) permits whistle signals to be supplemented by light signals. Those light signals must use:

• AAn all-round white or yellow light visible at a minimum range of 2 miles, with each flash…
• BA flashing blue light visible at a minimum range of 5 miles
• CA red all-round light synchronized with the sidelights
• DAny handheld spotlight aimed at the other vessel's bridge

Under Inland Rule 15(b), on the Great Lakes, Western Rivers, or waters specified by the Secretary, a power-driven vessel crossing a river shall:

• AKeep out of the way of a power-driven vessel ascending or descending the river
• BStand on, because the ordinary crossing rule always governs
• CKeep out of the way only of vessels descending the river
• DSound five short blasts and hold her course until answered

A vessel aground at night shall exhibit the anchor lights and, if practicable, in addition:

• ATwo all-round red lights in a vertical line, and by day three balls in a vertical line
• BTwo all-round green lights in a vertical line, and by day one ball
• CThree all-round white lights in a vertical line, and by day a diamond
• DA flashing yellow light, and by day a cylinder

Under Rule 35, a vessel of less than 12 metres in length operating in restricted visibility:

• AIs not obliged to give the prescribed signals, but must then make some other efficient so…
• BIs completely exempt from making any sound signal at all
• CMust sound the full bell and gong signals like a vessel of 100 metres or more
• DMust sound five short and rapid blasts every minute

Under Rule 9(d), a vessel must not cross a narrow channel or fairway if such crossing impedes the passage of a vessel that can safely navigate only within the channel. If the vessel confined to the channel is in doubt about the crossing vessel's intentions she:

• AUses the doubt signal of at least five short and rapid blasts
• BSounds one prolonged blast and holds her speed
• CMust give way to the crossing vessel immediately
• DSounds three short blasts to warn the crossing vessel

Under Rule 33, which sound-signalling equipment must a vessel of 20 metres or more but less than 100 metres in length carry?

• AA whistle and a bell
• BA whistle only
• CA whistle, a bell, and a gong
• DNo equipment, provided a handheld air horn is aboard

Rule 8(e) addresses the case where more room is needed to assess a situation or avoid collision. It provides that a vessel shall:

• ASlacken her speed or take all way off by stopping or reversing her means of propulsion
• BMaintain speed so the other vessel can predict her track
• CAlter course only, because speed reductions confuse other vessels
• DCall the other vessel on VHF before taking any action

Under Rule 20, the Rules concerning lights must be complied with:

• AFrom sunset to sunrise, and also from sunrise to sunset in restricted visibility
• BOnly between midnight and 0400 in commercial waterways
• COnly when another vessel is within two miles
• DOnly from sunset to sunrise, with no daytime requirement in any conditions

A power-driven vessel less than 50 meters in length underway at night must show at minimum:

• AMasthead light, sidelights, and sternlight
• BOnly an all-round white light
• CSidelights only
• DTwo red lights in a vertical line

Under Inland Rule 24, a vessel being pushed ahead that is not part of a composite unit exhibits at her forward end:

• ASidelights and a special flashing light
• BTwo masthead lights in a vertical line
• CTwo all-round red lights in a vertical line
• DA sternlight only

Under Rule 3, which of the following makes a vessel 'restricted in her ability to manoeuvre'?

• AA towing operation that severely restricts the towing vessel and her tow in their ability…
• BProceeding at reduced speed in fog
• CCarrying a heavy deck cargo
• DBeing short of crew for the passage

In addition to the lights prescribed for a power-driven vessel, an air-cushion vessel operating in the non-displacement mode exhibits:

• AAn all-round flashing yellow light
• BTwo all-round red lights in a vertical line
• CAn all-round green light over an all-round white light
• DThree masthead lights in a vertical line

A sailing vessel underway and a power-driven vessel underway are approaching so as to involve risk of collision. Generally:

• AThe power-driven vessel shall keep out of the way of the sailing vessel
• BThe sailing vessel shall always keep out of the way of the power-driven vessel
• CBoth must reverse engines immediately
• DNeither has any duty until collision is inevitable

Under Inland Rule 34, three short blasts mean:

• AI am operating astern propulsion
• BI intend to leave you on my port side
• CI am altering course to starboard
• DI am in doubt of your intentions

When overtaking under the Inland Rules in a narrow channel, the vessel intending to overtake on the overtaken vessel's port side sounds:

• ATwo short blasts
• BOne short blast
• CTwo prolonged blasts followed by two short blasts
• DOne prolonged blast only

A vessel engaged in fishing (other than trawling) exhibits which night lights in addition to sidelights and sternlight when making way?

• ATwo all-round lights in a vertical line, the upper red and the lower white
• BTwo all-round lights in a vertical line, both green
• CThree all-round white lights in a vertical line
• DOne flashing yellow light only

Safe speed under Rule 6 requires every vessel at all times to proceed at a speed so that she can:

• ATake proper and effective action to avoid collision and be stopped within a distance appr…
• BMaintain maximum RPM regardless of visibility
• CMatch the speed of the fastest vessel in the area
• DIgnore traffic density if radar is operating

In restricted visibility under Rule 19, a vessel which detects by radar alone another vessel that is forward of her beam and closing should:

• ADetermine if a close-quarters situation is developing and take avoiding action in ample t…
• BMaintain course and speed until visual contact is made
• CAlways alter course to port immediately
• DSound five short blasts continuously

A vessel at anchor less than 50 meters in length shall exhibit at night:

• AAn all-round white light where it can best be seen
• BTwo all-round red lights in a vertical line
• CMasthead light, sidelights, and sternlight
• DA flashing yellow light only

Under the Inland Rules, a power-driven vessel leaving a dock or berth shall sound:

• AOne prolonged blast
• BTwo short blasts
• CThree short blasts only
• DFive short and rapid blasts

Which statement about sidelights is correct?

• AThe starboard sidelight is green and the port sidelight is red, each showing an unbroken…
• BBoth sidelights are white and show all around the horizon
• CThe port sidelight is green and the starboard is red
• DSidelights show only 10 degrees either side of the beam

Under Inland Rule 24, a power-driven vessel pushing ahead or towing alongside exhibits, in place of a sternlight:

• ATwo towing lights in a vertical line
• BA single sternlight, exactly as under the International Rules
• CThree all-round red lights in a vertical line
• DA flashing blue light

Rule 2 provides that nothing in the Navigation Rules exonerates a vessel, her owner, master, or crew from the consequences of:

• ANeglect to comply with the Rules, or neglect of any precaution required by the ordinary p…
• BAny action taken after a passing agreement has been made by radio
• CDamage caused while a licensed pilot is aboard and conning the vessel
• DA collision that occurs inside a designated anchorage

When a mooring line under heavy tension parts, the greatest danger to personnel on deck is in:

• AThe snap-back zone, which follows the run of the rope and widens at fairleads, bitts, and…
• BThe area directly abeam of the midships house
• CEvery part of the deck equally, because snap-back has no direction
• DOnly the water between the vessel and the dock

When fighting a flammable-liquid fire with a portable dry-chemical extinguisher, the discharge should be directed:

• AAt the base of the flames, sweeping from the near edge of the fire toward the back
• BAt the top of the flames, where the temperature is highest
• CInto the overhead so the agent settles down onto the fire
• DIn one continuous burst at the centre of the burning pool

Reserve buoyancy is best described as:

• AThe enclosed watertight volume above the waterline that keeps a vessel afloat if she is b…
• BThe weight of fuel and fresh water still remaining in the tanks
• CThe extra cargo a vessel may load above her marks in fine weather
• DThe buoyancy supplied by the inflatable liferafts carried on board

A vessel's displacement is:

• AThe weight of the water she displaces, which equals the weight of the vessel and everythi…
• BThe volume of her enclosed spaces, expressed in tons
• CThe greatest weight of cargo she is permitted to carry
• DThe difference between her forward and after drafts

The difference between list and heel is best described as:

• AList is a lasting inclination from an off-centre weight or asymmetric flooding; heel is a…
• BList comes from wind pressure and heel comes from a shift of cargo
• CThey are two words for exactly the same condition
• DList applies only to vessels at anchor and heel only to vessels underway

The primary responsibility for the safety of the vessel and all persons on board rests with the:

• AMaster
• BEngineer only
• CShore agent
• DMost senior passenger

Free surface effect is most dangerous when:

• ALiquids can shift freely across a wide tank or bilge space as the vessel heels
• BTanks are completely full and pressed up
• CTanks are completely empty and dry
• DCargo is solid and secured

When anchoring in a river with current, the preferred approach is generally to:

• AStem the current, approach slowly, and drop anchor with controlled sternway or stopped he…
• BRun full speed down-current and drop the anchor at the last second
• CDrop both anchors while backing at high RPM regardless of depth
• DAnchor only from the stern in all conditions

Scope of anchor cable is the ratio of:

• ALength of rode out to depth of water (plus freeboard/allowances as practiced)
• BAnchor weight to vessel displacement
• CChain diameter to windlass drum size
• DDraft to beam

When docking a small power-driven vessel with a strong onshore wind, good practice often includes:

• APlanning the approach with adequate fenders, controlling speed early, and using the wind…
• BApproaching as fast as possible so the wind has less time to act
• CIgnoring fenders because the dock is wood
• DLeaving the engine in reverse for the entire approach

A spring line is primarily used to:

• AControl fore-and-aft movement of the vessel alongside a dock or to warp the vessel ahead…
• BHold only the mast when reefing sail
• CReplace the anchor rode at sea
• DMeasure freeboard

When taking a tow line as the towed vessel, the person in charge should:

• AEnsure the line is made fast to a strong point designed for towing loads and keep personn…
• BMake the line fast only to a light stanchion for quick release
• CStand in the bight so they can control tension by body weight
• DIgnore chafe gear because tows are short on inland waters

Right-handed single-screw vessels typically exhibit which prop walk effect when going astern?

• AThe stern tends to walk to port (bow falls off to starboard) when going astern
• BThe stern always walks to starboard when going astern
• CThere is never any lateral effect in reverse
• DThe bow always walks to port when going ahead only

Logbooks and official records on a commercial vessel should be:

• AKept accurately, timely, and without unauthorized erasures that obscure the original entry
• BWritten only at the end of the month from memory
• CDiscarded after each trip to save space
• DFilled only when an accident occurs

When taking soundings with a lead line, the depth reported is generally:

• AThe depth of water from the surface to the bottom at the sounding location
• BThe air draft from waterline to mast truck
• CThe freeboard amidships only
• DThe distance to the nearest charted aid

A vessel's GM (metacentric height) is a measure of:

• AInitial stability; larger GM generally means a stiffer, more initially stable vessel
• BMaximum cargo weight only
• CFuel consumption rate
• DRadar antenna height

When securing deck cargo on a small commercial vessel, the master should ensure that:

• ACargo is stowed and lashed so it will not shift in the worst expected conditions of the v…
• BCargo is left loose so it can be jettisoned instantly without tools
• CAll weight is stacked as high as possible to clear bilge alarms
• DOnly passenger comfort is considered

A 'lee shore' is:

• AA shore toward which the wind is blowing, onto which a vessel may be set
• BAny shore protected from all wind and current
• COnly a charted military restricted area
• DThe deep-water side of a channel

When transferring fuel on board a small vessel, good practice includes:

• AControlling transfer rate, monitoring tank levels, using drip containment, and securing s…
• BLeaving tanks overflowing to ensure they are full
• CSmoking only upwind of the vent
• DDisabling bilge alarms for the transfer period

The term 'trim' of a vessel refers to:

• AThe longitudinal difference in draft between forward and aft
• BThe transverse inclination of the vessel only
• CThe color of the hull above the waterline
• DThe angle of the radar scanner

List on a vessel is best corrected by:

• AShifting weight (fuel, ballast, or cargo) from the low side toward the high side, or pump…
• BIncreasing speed to maximum regardless of conditions
• CTurning off the bilge pumps
• DRaising the center of gravity intentionally

For a Master or Mate less than 100 GRT on Great Lakes and inland waters, manning and watchkeeping should be based on:

• AApplicable 46 CFR manning requirements, vessel type, route, and the need for a proper loo…
• BPassenger preference for fewer crew
• CIgnoring rest if the trip is under 12 hours
• DOne person always handling helm, lookout, and radio alone in restricted visibility withou…