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Perguntas do quiz (93)
1Reserve buoyancy is __________.
- Athe watertight portion of a vessel above the waterline
- Balso called GM
- Cthe void portion of the ship below the waterline which is enclosed and watertight
- Daffected by the number of transverse watertight bulkheads
2A vessel is tender if cargo weight is __________.
- Aconcentrated high and the double bottoms empty
- Bconcentrated low and the double bottoms empty
- Cevenly distributed vertically with the double bottoms full
- Dconcentrated and with the double bottoms full
3The purpose of the inclining experiment is to __________.
- Adetermine the lightweight center of gravity location
- Bdetermine the location of the metacenter
- Cverify the hydrostatic data
- Dverify data in the vessel's operating manual
4Metacentric height is an indication of a vessel's stability __________.
- Afor small angles of inclination
- Bfor all angles of inclination
- Cfor large angles of inclination
- Dall of the above
5Transverse stability calculations require the use of __________.
- Ahydrostatic curves
- Bhog or sag calculations or tables
- Cgeneral arrangement plans
- Dcross-sectional views of the vessel
6Which statement is true regarding the free surface effect?
- AIt decreases at increased angles of heel due to pocketing when a tank is 90% full.
- BIt increases in direct proportion to the length of the tank times the breadth squared.
- CIt decreases in direct proportion to increasing specific gravity of the liquid in the tank.
- DIn practice, the correction is considered to be a virtual reduction of KG.
7Which will be a result of removing on-deck containers?
- AMetacentric height will increase
- BKG will increase
- CKB will increase
- DReserve buoyancy will decrease
8In order to minimize the effects of a tender vessel, when carrying a cargo of lumber, you should __________.
- Aplace the heaviest woods in the lower holds
- Bmaximize your deck load
- Cdistribute lumber so that those stowing most compactly per unit of weight are in the upper holds
- Dkeep the vessel's frame spaces free from lumber
9Which is an indication of reserve buoyancy?
- AFreeboard
- BMetacentric height
- CRighting moment
- DRolling period
10Which action will affect the trim of a vessel?
- AMoving a weight forward
- BMoving high weights lower
- CAdding weight at the tipping center
- DAll of the above
11If a vessel is sagging, what kind of stress is placed on the sheer strake?
- ACompression
- BTension
- CThrust
- DRacking
12What will happen when cargo is shifted from the main deck into the lower hold of a vessel?
- AThe GM will increase.
- BThe metacenter will move upward
- CThe center of buoyancy will move upward
- DAll of the above
13How do you improve a vessel’s stability?
- AKeep ballast water tank fulll
- BIncrease the free surface effect of liquid storage tanks
- CKeep fuel tanks at least half full
- DKeep at least one fuel tank empty for slops
14With regards to metacentric height, which of the following statement is true?
- AIt is used to indicate the quality of initial stability.
- BIt is located below the center of buoyancy.
- CIt is measured vertically above the center of buoyancy.
- DIts determination is the objective of the inclining experiment.
15A vessel should normally behave as is all of its weight is acting downward through the center of gravity and all of its support is acting upward through the_____________.
- Acenter of buoyancy
- Bkeel
- Ctipping center
- Damidships section
16Which of the listed initials is used to represent the indicator of initial stability?
- AGM
- BKG
- CKM
- DGZ
17The quality of initial stability is indicated by _______________.
- AGM
- BKM
- CDeck load
- DMaximum allowed KG
18A stiff wind has caused a difference to occur between the port and starboard drafts. What do you call this condition?
- AHeel
- BList
- CTrim
- DFlotation
19Pitching is angular motion of the vessel about which axis?
- ATransverse
- BLongitudinal
- CVertical
- DCenterline
20Yawing is the angular motion of the vessel about what axis?
- AVertical
- BLongitudinal
- CTransverse
- DCenterline
21Pitching is the rising and falling motion of the bow of a ship oscillating about what axis?
- ATransverse
- BLongitudinal
- CVertical
- DCenterline
22The value of the maximum righting arm is dependent upon the position of the center of buoyancy and the _____________.
- Avertical location of the center of gravity
- Blongitudinal center of gravity
- Ctransverse center of gravity
- Ddownflooding angle
23What is the stability term for the distance between the center of gravity (G) to the Metacenter (M)?
- AMetacentri height
- BMetacentric radius
- CHeight of the metacenter
- DRighting arm
24What is termed as horizontal fore and aft motion of a vessel while underway?
- ASurge
- BPitch
- CSway
- DRoll
25What do you call the angular movement of a vessel about a horizontal line drawn from its bow to its stern?
- ARolling
- BPitching
- CHeaving
- DSwaying
26How can generally improve the vessel’s stability in a hazardous situation?
- ABallasting appropriate port or starboard deep tanks
- BPumping double bottoms to the forepeak
- Ctransferring ballast athwartships
- Ddeballasting double bottoms
27When flooding occurs in a damaged vessel, what happened to the reserve buoyancy?
- ADecrease
- BRemains the same
- CIncrease
- DShifts to the low side
28While on a voyage, the vessel's master observed that the vessel touched bottom, what should he immediately do?
- AFile a marine protest and underwater examination
- BRequest for drydocking
- CRequest for surveyor
- DRequest for divers
29Many uninspected vessels require load lines to indicate the maximum ___________.
- Aamidship's draft to which a vessel can be lawfully submerged
- Breserve buoyancy under any condition
- Cangle of reduced freeboard for subdivision calculations
- Dfreeboard for the light ship displacement
30The construction of vessel made of steel should have a grade in accordance with what guidelines?
- ARules of the classification society
- BRules of the shipyard
- CShipping law
- DAdmiralty law
31The construction of vessel made of steel should have a grade in accordance with the ____________.
- ARules of the classification society
- BRules of the shipyard
- CGrade steel certificate
- DRules of S.M.E. Code
32What is the purpose of swash bulkheads?
- AReduce liquid movement and surging within a tank
- BSeparate cargoes in a common tank
- CUsed whenever the 'gray' water drain system connection is located in a bulkhead
- DRestrict flooding within a tank
33The inclining experiment conducted on a merchant ship is the method for determining the exact location of the ______________.
- Aposition of the ship’s center of gravity
- Bship’s displacement in seawater
- Cposition of the ship’s center of buoyancy
- Dposition of the ship’smetacenter
34What do you call a vessel having a concentration of weight toward the top of the vessel?
- ATender
- BStiff
- CStiffbuoyant
- DNeutral
35Angular motion about the vertical axis of a vessel is known as ________.
- Ayaw
- Bsurge
- Chog
- Droll
36What effect will transferring fuel oil from #1P double bottom to #3P double bottom have on the trim of a vessel?
- AThe forward draft will decrease.
- BThe mean draft will increase.
- CThe mean draft will decrease.
- DThe after draft will decrease.
37Which of the listed conditions will occur to the ship’s center of gravity if 200 tons of steel is transferred to the ship’s cargo from shore side?
- AThe center of gravity will be lowered.
- BThe reserve buoyancy will rise.
- CThe center of gravity will remain in the same position.
- DThe reserve buoyancy will remain the same.
38What is the usual effect of moving weight from low in the vessel to above the main deck?
- AThe stability is decreased.
- BThe stability is increased.
- CThe draft is increased.
- DThe reserve buoyancy is decreased.
39What is the usual effect of moving weight from the main deck to a position lower in the vessel?
- AThe stability of the vessel is increased.
- BThe trim of the vessel is increase.
- CThe stability of the vessel is significantly decreased.
- DThe vessel will list in proportion to the volume of the cargo shifted.
40The reserve buoyancy of a ship consists of ________________.
- Athe part of the enclosed and watertight portion of a vessel above the waterline
- Bthe void portion of the ship below the waterline which is enclosed and watertight
- Call cofferdams, double bottoms, and wing tanks that are slack
- Dthe percentage of the volume of a compartment which can be occupied by water if flooded
41What do you call a distance between the bottom of the hull and the waterline?
- ADraft
- BTonnage
- CReserve buoyancy
- DFreeboard
42Rolling is the angular motion of the vessel about what axis?
- ALongitudinal
- BTransverse
- CVertical
- DCenterline
43What is termed as the difference between the initial trim of a vessel and the trim after a change in load has occurred?
- AChange of trim
- BTrim
- CFinal trim
- DChange of draft
44Reserve buoyancy is the _________________.
- Avolume of intact space above the waterline
- Bunoccupied space below the waterline
- Cexcess of the buoyant force over gravitational force
- Ddifference between buoyancy in salt and fresh waters
45When is adverse effect due to free surface become apparent?
- AWhen a portion of liquid is removed from a full tank
- BWhen the vessel is trimmed by the stern
- CWhen the vessel’s draft is decreased exposing more surface area to the wind and current
- DWhen the vessel’s draft is increased, thus increasing the vessel’s wetted surface area
46What is the condition of a vessel trimmed down by the bow?
- AGreater draft forward than aft
- BZero trim
- CLow mean draft
- DGreater draft aft than forward
47The difference between the initial trim of a vessel and the trim after a change in load has occurred is known as _____________.
- Achange of trim
- Btrim
- Cfinal trim
- Dchange of draft
48The factor contributing to the greatest effect on the ship’s period of roll is the ____________.
- Avertical weight distribution
- Blength of KB
- Cvirtual rise in the center of gravity
- Dmoment to trim 1 inch (MT 1)
49Longitudinal stability indicates the tendency of a ship to resist a ________.
- Achange in trim
- Bchange in list
- Cchange in mean draft
- Dchange in the period of roll
50The angular movement of a vessel about a horizontal line drawn from its bow to its stern is _______________.
- Arolling
- BPitching
- Cheaving
- Dswaying
51You may improve a vessel’s stability by _______________.
- Akeeping double-bottom fuel tanks topped off
- Bincreasing the free surface effect of liquid storage tanks
- Ckeeping fuel tanks at least half full
- Dkeeping at least one fuel tank empty for slops
52Adverse effect due to free surface will become apparent when _____________.
- Aa portion of liquid is removed from a full tank
- Bthe vessel is trimmed by the stern
- Cthe vessel’s draft is decreased exposing more surface area to the wind and current
- Dthe vessel’s draft is increased, thus increasing the vessel’s wetted surface area
53The reserve buoyancy of a vessel varies directly with changed in the vessel’s_____.
- Afreeboard
- Bfree surface
- Crolling period
- Dnone of the above
54Pitching is angular motion of the vessel about which axis?
- ATransverse
- BLongitudinal
- CVertical
- DCenterline
55Flooding of any compartment in a ship, resulting in a serious loss of reserve buoyancy, will always ________________.
- Areduce ship stability
- Bincrease ship stability
- Ccause a serious permanent list
- Ddecrease the heeling moment
56Angular motion about the vertical axis of a vessel is known as ________.
- Ayaw
- Bsurge
- Chog
- Droll
57Yawing is the angular motion of the vessel about what axis?
- AVertical
- BLongitudinal
- CTransverse
- DCenterline
58The reserve buoyancy of a ship consists of ________________.
- Athe part of the enclosed and watertight portion of a vessel above the waterline
- Bthe void portion of the ship below the waterline which is enclosed and watertight
- Call cofferdams, double bottoms, and wing tanks that are slack
- Dthe percentage of the volume of a compartment which can be occupied by water if flooded
59Reserve buoyancy is the _________________.
- Avolume of intact space above the waterline
- Bunoccupied space below the waterline
- Cexcess of the buoyant force over gravitational force
- Ddifference between buoyancy in salt and fresh waters
60When flooding occurs in a damaged vessel, reserve buoyancy _____________.
- Adecrease
- Bremains the same
- Cincrease
- Dshifts to the low side
61A vessel should normally behave as is all of its weight is acting downward through the center of gravity and all of its support is acting upward through the ___________________.
- Acenter of buoyancy
- Bkeel
- Ctipping center
- Damidships section
62The center of volume of the immersed portion of the vessel is the _________________.
- Acenter of buoyancy
- Bcenter of floatation
- Cmetacentric height
- Dcenter of gravity
63Which of the listed initials is used to represent the indicator of initial stability?
- AGM
- BKG
- CKM
- DGZ
64The quality of initial stability is indicated by _______________.
- AGM
- BKM
- CDeck load
- DMaximum allowed KG
65In small angle stability, when external forces exist, the buoyant force is assumed to act vertically upwards through the center of buoyancy and though the _____________.
- Ametacenter
- Bcenter of gravity
- Ccenter of floatation
- Dmetacentric height
66With regards to metacentric height, which of the following statement is true?
- AIt is used to indicate the quality of initial stability.
- BIt is located below the center of buoyancy.
- CIt is measured vertically above the center of buoyancy.
- DIts determination is the objective of the inclining experiment.
67The stability term for the distance between the center of gravity (G) to the Metacenter (M), when small angle stability applies is known as the ________________.
- Ametacentri height
- Bmetacentric radius
- Cheight of the metacenter
- Drighting arm
68The value of the maximum righting arm is dependent upon the position of the center of buoyancy and the _____________.
- Avertical location of the center of gravity
- Blongitudinal center of gravity
- Ctransverse center of gravity
- Ddownflooding angle
69The water in which a vessel floats provides vertical upward support. The point through which this support is assumed to act is known as the center of _______________.
- Abuoyancy
- Beffort
- Cflotation
- Dgravity
70In the absence of external forces, the center of gravity of a floating vessel is located directly above the _______________.
- Ageometric center of the displaced volume
- Bmetacenter
- Camidships
- Dcenter of flotation
71Which abbreviation represents the height of the center of buoyancy?
- AKB
- BBK
- CCB
- DBM
72The purpose of the vessels “inclining experiment” is to _____________.
- Adetermine the position of the lightship center of gravity
- Bdetermine the location of the metacenter
- Cverify the hydrostatic data
- Dverify data in the vessel’s operating manual
73Stability is determined principally by the relationship of the center of gravity and the __________.
- Acenter of buoyancy
- Baft perpendicular
- Ckeel
- Dcenter of flotation
74The inclining experiment conducted on a merchant ship is the method for determining the exact location of the ______________.
- Aposition of the ship’s center of gravity
- Bship’s displacement in seawater
- Cposition of the ship’s center of buoyancy
- Dposition of the ship’smetacenter
75Any single ship’s compartment sustaining partial flooding with free communication to the sea will _________.
- Aseriously decrease stability
- Bincrease reserve buoyancy
- Cdecrease the free surface effect
- Dresult in the ship’s sinking
76Horizontal fore and aft motion of a vessel while underway is called ________.
- Asurge
- Bpitch
- Csway
- Droll
77Rolling is the angular motion of the vessel about what axis?
- ALongitudinal
- BTransverse
- CVertical
- DCenterline
78Vessel bilge keels are designed primarily to __________.
- Aassist in reducing rolling
- Bimprove vessel steering response
- Creinforce the bilge knuckle in way of double bottom tanks
- Dprovide strengthening of the bilge plating through the mid-body
79Pitching is the rising and falling motion of the bow of a ship oscillating about what axis?
- ATransverse
- BLongitudinal
- CVertical
- DCenterline
80A vessel having a concentration of weight toward the top of the vessel is said to be ___________.
- Atender
- Bstiff
- Cstiffbuoyant
- Dneutral
81What is the usual effect of moving weight from low in the vessel to above the main deck?
- AThe stability is decreased.
- BThe stability is increased.
- CThe draft is increased.
- DThe reserve buoyancy is decreased.
82What is the usual effect of moving weight from the main deck to a position lower in the vessel?
- AThe stability of the vessel is increased.
- BThe trim of the vessel is increase.
- CThe stability of the vessel is significantly decreased.
- DThe vessel will list in proportion to the volume of the cargo shifted.
83You can generally improve the vessel’s stability in a hazardous situation by _________.
- Aballasting appropriate port or starboard deep tanks
- Bpumping double bottoms to the forepeak
- Ctransferring ballast athwartships
- Ddeballasting double bottoms
84Which of the listed conditions will occur to the ship’s center of gravity if 200 tons of steel is transferred to the ship’s cargo from shore side?
- AThe center of gravity will be lowered.
- BThe reserve buoyancy will rise.
- CThe center of gravity will remain in the same position.
- DThe reserve buoyancy will remain the same.
85If fuel oil is burned from only the starboard tanks, the ship will _________.
- Alist to port
- Bgo down by the head
- Clist to starboard
- Dtrim by the stern
86A vessel trimmed down by the bow has ______________.
- Aa greater draft forward than aft
- Bzero trim
- Ca low mean draft
- Da greater draft aft than forward
87A stiff wind has caused a difference to occur between the port and starboard drafts. This condition is known as _________.
- Aheel
- Blist
- Ctrim
- Dflotation
88What effect will transferring fuel oil from #1P double bottom to #3P double bottom have on the trim of a vessel?
- AThe forward draft will decrease.
- BThe mean draft will increase.
- CThe mean draft will decrease.
- DThe after draft will decrease.
89The distance between the bottom of the hull and the waterline is called _______.
- Adraft
- Btonnage
- Creserve buoyancy
- Dfreeboard
90For an upright vessel, draft is the vertical distance between the keel and the ____________.
- Awaterline
- Bfreeboard deck
- CPlimsoll mark
- Damidships section
91You may improve a vessel’s stability by ______________.
- Akeeping the fuel tanks topped off
- Bincreasing the free surface effect
- Ckeeping the fuel tanks at least half full
- Dkeeping at least one fuel tank empty for slops
92Reducing the free surface of a liquid within a tank has the effect of lowering the ___________.
- Avirtual height of the center of gravity
- Buncorrected ‘KG’
- Cmetacenter
- Dmetacentric height
93Many uninspected vessels require load lines to indicate the maximum ___________.
- Aamidship's draft to which a vessel can be lawfully submerged
- Breserve buoyancy under any condition
- Cangle of reduced freeboard for subdivision calculations
- Dfreeboard for the light ship displacement
Informações
- Descrição
- competency Quiz on c10, created by mrk nthny on 06/08/2016.
- Autor
- mrk nthny
- Idioma
- English
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