Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Naval Arch > Exam 4 > Flashcards

Exam 4 Flashcards

1
Q

Reserve buoyancy is _______.

A. transverse watertight bulkheads
B. the void portion of the ship below the waterline which is enclosed and watertight
C. the watertight part of a vessel above the waterline
D. a measure of metacentric height

A

C. the watertight part of a vessel above the waterline

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Hatches on small passenger vessels operating on exposed waters and exposed to the weather ________.

A) must be watertight
B) must be open at all times
C) need not be watertight
D) None of the above

A

A) must be watertight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Vessels subject to SOLAS are required to keep watertight doors closed while the vessel is navigating. Which of the following is an exception to this requirement?

A. ramps forming an alternative closure if the primary closure is still secured
B. watertight doors in the machinery spaces for the convenience of the engineers
C. cargo loading doors in the collision bulkhead if the vessel is in a light condition
D. any door stated in the ship’s stability book as being permitted to remain open

A

D. any door stated in the ship’s stability book as being permitted to remain open

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Regulations define the bulkhead deck as __________.

A. any deck extending from stem to stern
B. the uppermost deck to which transverse watertight bulkheads extend
C. the lowermost deck to which transverse watertight bulkheads extend
D. the uppermost complete deck

A

B. the uppermost deck to which transverse watertight bulkheads extend

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

SOLAS requires that passenger vessels make an entry in the log book for all drills and inspections of watertight doors. What other information relevant to the watertight doors is required to be entered?

A. an explicit record of the time required for the door to complete the opening cycle
B. an explicit record of all the maintenance performed to the door
C. an explicit record of the time required for the door to complete the entire operational cycle
D. an explicit record of any defect that may have been disclosed

A

D. an explicit record of any defect that may have been disclosed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

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

A. clamps
B. clasps
C. dogs
D. latches

A

C. dogs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The volume of a vessel’s intact watertight space above the waterline is its __________.

A. free surface
B. marginal stability
C. reserve buoyancy
D. freeboard

A

C. reserve buoyancy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Progressive flooding is controlled by securing watertight boundaries and __________.

A. transferring water ballast
B. jettisoning cargo
C. pumping out flooded compartments
D. abandoning ship

A

C. pumping out flooded compartments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

SOLAS requires a logbook entry for the operation of watertight door drills. Which of the following lists the frequency that these drills are required to be conducted for passenger vessels?

A. weekly
B. monthly
C. bi-weekly
D. quarterly

A

A. weekly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

The center of the underwater volume of a floating vessel is the __________.

A. center of buoyancy
B. center of flotation
C. uncorrected height of the center of gravity of the vessel
D. center of gravity of the vessel corrected for free surface effects

A

A. center of buoyancy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Which statement is TRUE of a tender vessel?

A. It has a large GM
B. Its period of roll is long
C. It has a very low center of gravity.
D. It has a good transverse stability

A

B. Its period of roll is long

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Which statement is TRUE of a stiff vessel?

A) She will have a large metacentric height.
B) Her period of roll will be large due to her large metacentric height.
C) She will have an unusually high center of gravity.
D) She will pitch heavily.

A

A) She will have a large metacentric height.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

A slow and easy motion of a vessel in a seaway is an indication of a __________.

A) small GM
B) low center of gravity
C) stiff vessel
D) large GZ

A

A) small GM

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Stability is determined by the relationship of the center of gravity and the __________.

A) water depth
B) keel
C) center of flotation
D) center of buoyancy

A

D) center of buoyancy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Reserve buoyancy is __________.

A. the void portion of the ship below the waterline which is enclosed and watertight
B. also called GM
C. affected by the number of transverse watertight bulkheads
D. the watertight portion of a vessel above the waterline

A

D. the watertight portion of a vessel above the waterline

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

The geometric center of the underwater volume is known as the __________.

A) center of flotation
B) tipping center
C) center of gravity
D) center of buoyancy

A

D) center of buoyancy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

In small-angle stability, when external forces exist, the buoyant force is assumed to act vertically upwards through the center of buoyancy and through the __________.

A) center of gravity
B) center of flotation
C) metacenter
D) metacentric height

A

C) metacenter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

A vessel behaves as if all of its weight is acting downward through the center of gravity, and all its support is acting upward through the __________.

A) keel
B) center of buoyancy
C) tipping center
D) amidships section

A

B) center of buoyancy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Addition of weight above the center of gravity of a vessel will ALWAYS __________.

A) reduce initial stability
B) increase righting moments
C) increase GM
D) All of the above

A

A) reduce initial stability

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Stability is determined principally by the location of two points in a vessel) the center of buoyancy and the ________.

A) metacenter
B) geometric center of the water plane area
C) center of gravity
D) center of flotation

A

C) center of gravity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The abbreviation GM is used to represent the __________.

A) height of the metacenter
B) righting arm
C) righting moment
D) metacentric height

A

D) metacentric height

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Which advantage does dry chemical have over carbon dioxide (CO2) in firefighting?

A) Compatible with all foam agents
B) Cleaner
C) More protective against re-flash
D) All of the above

A

C) More protective against re-flash

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Carbon dioxide as a firefighting agent has which advantage over other agents?

A) It causes minimal damage.
B) It is most effective on a per unit basis.
C) It is safer for personnel.
D) It is cheaper.

A

A) It causes minimal damage.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Each crewmember has an assigned firefighting station. This assignment is shown on the __________.

A) muster list
B) fire fighting plan
C) Certificate of Inspection
D) shipping articles

A

A) muster list

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Any firefighting equipment that is carried in addition to the minimum required must __________.

A) meet the applicable standards
B) be marked as additional equipment
C) be stowed in a separate area
D) All of the above

A

A) meet the applicable standards

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

If heavy smoke is coming from the paint locker, the FIRST firefighting response should be to __________.

A) release the CO2 flooding system
B) open the door to evaluate the extent of the fire
C) enter and use a portable extinguisher
D) secure the ventilation

A

D) secure the ventilation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

The main advantage of a steady stream of water on a class “A” fire is that it __________.

A) breaks up and cools the fire
B) protects the firefighting crew
C) removes the oxygen
D) washes the fire away

A

A) breaks up and cools the fire

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Under normal firefighting conditions, approximately how far could a straight stream of water reach when the hose pressure is 100 PSI?

A) 50 feet
B) 100 feet
C) 150 feet
D) 200 feet

A

B) 100 feet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

The success of an indirect attack on a fire depends on the __________.

A) size of the fire when initially observed
B) complete containment of the fire
C) cooling ability of the firefighting agent
D) class of the fire

A

B) complete containment of the fire

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

There are two disadvantages to CO2 as a firefighting agent. One of these is the limited quantity available, and the other is __________.

A) there is no effect on a class A fire even in an enclosed space
B) the lack of cooling effect on heated materials
C) that it cannot be used in a dead ship situation with no electrical power to the CO2 pump
D) that it breaks down under extreme heat to form poisonous gases

A

B) the lack of cooling effect on heated materials

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

While you are working in a space, the fixed CO2 system is accidentally activated. You should __________.

A) secure the applicators to preserve the charge in the cylinders
B) continue with your work as there is nothing you can do to stop the flow of CO2
C) retreat to fresh air and ventilate the compartment before returning
D) make sure all doors and vents are secured

A

C) retreat to fresh air and ventilate the compartment before returning

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Lifesaving regulations in Subchapter W require that a fire drill include __________.

A) starting the fire pumps
B) checking arrangements for abandon ship
C) checking the operation of watertight doors
D) All of the above

A

D) All of the above

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Firefighting foam is only effective when the foam __________.

A) penetrates to the bottom of the fire
B) is kept saturated with low-velocity water fog
C) completely covers the top of the burning liquid
D) mixes with the burning fuel oil

A

C) completely covers the top of the burning liquid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Fixed CO2 systems would not be used on crew’s quarters or __________.

A) the engine room
B) spaces open to the atmosphere
C) cargo holds
D) the paint locker

A

B) spaces open to the atmosphere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Which extinguishing agent will cool down a heated bulkhead in the least amount of time?

A) Water fog or spray
B) Steam
C) Water stream
D) Dry chemical

A

A) Water fog or spray

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Actuating the CO2 fixed system causes the shutdown of the __________.

A) supply and exhaust ventilation
B) exhaust ventilation
C) fuel supply
D) mechanical and natural ventilation

A

A) supply and exhaust ventilation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

A galley grease fire on the stove may be extinguished using __________.

A) fire dampers
B) foam
C) the range hood extinguishing system
D) water

A

C) the range hood extinguishing system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

Fire in an engine compartment is best extinguished with carbon dioxide gas (CO2) and by __________.

A) completely closing the compartment
B) closing the compartment except for the ventilators
C) increasing the air flow to the compartment by blowers
D) leaving the compartment open to the air

A

A) completely closing the compartment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

Fires are grouped into what categories?

A) Combustible solids, liquids, and gases
B) Type 1, 2, 3, and 4
C) Flammable solids, liquids, and gases
D) Class A, B, C, D, and K

A

D) Class A, B, C, D, and K

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

Spontaneous combustion is most likely to occur in __________.

A) dirty swabs and cleaning gear
B) partially loaded fuel tanks
C) overloaded electrical circuits
D) rags soaked in linseed oil

A

D) rags soaked in linseed oil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

Spontaneous combustion is caused by __________.

A) an outside heat source heating a substance until it ignites
B) conduction of heat through a wall of material to the substance
C) chemical action within a substance
D) All of the above

A

C) chemical action within a substance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

The class of fire on which a blanketing effect is essential is class __________.

A) A
B) B
C) C
D) D

A

B) B

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

Fires of which class would most likely occur in the engine room of a vessel?

A) Classes A and B
B) Classes A and D
C) Classes C and D
D) Classes B and C

A

D) Classes B and C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

A fire in a transformer terminal would be classified as class __________.

A. A
B. B
C. C
D. D

A

C. C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

What is the primary hazard, other than fire damage, associated with a class C fire?

A) Electrocution or shock
B) Explosion
C) Possibility of reflash
D) Flashover

A

A) Electrocution or shock

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

Fires in combustible metals, such as sodium or magnesium, are classified as class __________.

A) A
B) B
C) C
D) D

A

D) D

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

Why should foam be banked off a bulkhead when extinguishing an oil fire? (USCG License Exam Question)

A. To coat the surrounding bulkheads with foam in case the fire spreads
B. To cool the bulkhead closest to the fire
C. To prevent any oil on the bulkheads from igniting
D. To prevent agitation of the oil and spreading the fire

A

D. To prevent agitation of the oil and spreading the fire

48
Q

Which statement is TRUE concerning the application of foam on an oil fire? (USCG License Exam Question)

A. It cools the surface of the liquid.
B. It gives protection to fire fighting personnel against the heat of the fire.
C. It forms a smothering blanket on the surface of the oil.
D. It should be used at the same time a solid stream of water is being applied.

A

C. It forms a smothering blanket on the surface of the oil.

49
Q

Which statement concerning the application of dry chemical powder is FALSE? (USCG License Exam Question)

A. At temperatures of less than 32° F, the extinguisher must be recharged more often.
B. When possible, the fire should be attacked from windward.
C. The stream should be directed at the base of the fire.
D. Directing the stream into burning flammable liquid may cause splashing.

A

A. At temperatures of less than 32° F, the extinguisher must be recharged more often.

50
Q

4 - Fixed CO2 systems would not be used on crew’s quarters or __________.(USCG License Exam Question)

A. the paint locker
B. spaces open to the atmosphere
C. cargo holds
D. the engine room

A

B. spaces open to the atmosphere

51
Q

There are two disadvantages to CO2 as a firefighting agent. One of these is the limited quantity available, and the other is __________.(USCG License Exam Question)

A. the lack of cooling effect on heated materials
B. that it cannot be used in a dead ship situation with no electrical power to the CO2 pump
C. that it breaks down under extreme heat to form poisonous gases
D. there is no effect on a class A fire even in an enclosed space

A

A. the lack of cooling effect on heated materials

52
Q

Your vessel is equipped with a fixed CO2 system and a fire main system. In the event of an electrical fire in the engine room what is the correct procedure for fighting the fire? (USCG License Exam Question)

A. Use the CO2 system and evacuate the engine room.
B. Use the fire main system and evacuate the engine room.
C. Evacuate the engine room and use the CO2 system.
D. Evacuate the engine room and use the fire main system.

A

C. Evacuate the engine room and use the CO2 system.

53
Q

After extinguishing a paint locker fire using the fixed CO2 system, the next action is to have the space __________.(USCG License Exam Question)

A. opened and burned material removed
B. left closed with vents off until all boundaries are cool
C. checked for oxygen content
D. doused with water to prevent reflash

A

B. left closed with vents off until all boundaries are cool

54
Q

In the event of fire in a machinery space, __________.(USCG License Exam Question)

A. the fixed carbon dioxide system should be used only when all other means of extinguishment have failed
B. the fixed carbon dioxide system should be used immediately, as it is the most efficient means of extinguishment
C. water in any form should not be used as it will spread the fire
D. the space should be opened 5 minutes after flooding CO2 to prevent injury to personnel

A

A. the fixed carbon dioxide system should be used only when all other means of extinguishment have failed

55
Q

A deck-stowed 40-foot container is giving off smoke, and one end is discolored from heat. The cargo is valuable and easily damaged by water. You want to extinguish the fire without further damage if possible. What action should you take? (USCG License Exam Question)

A. Connect a portable line from the ship’s fixed system and discharge CO2 into the container.
B. Flood the container with water and disregard any cargo damage as the fire threatens the entire vessel.
C. Pierce the container and discharge 6 or more portable CO2’s then add more CO2 hourly.
D. Cool the exterior of the container with water and close all vents; then keep it cooled until it can be off-loaded.

A

C. Pierce the container and discharge 6 or more portable CO2’s then add more CO2 hourly.

56
Q

Before using a fixed CO2 system to fight an engine room fire, you must __________.(USCG License Exam Question)

A. secure the engine room ventilation
B. secure the machinery in the engine room
C. evacuate all engine room personnel
D. All of the above

A

D. All of the above

57
Q

Which statement(s) is(are) TRUE concerning the use of dry chemical extinguishers? (USCG License Exam Question)

A. You should direct the spray at the base of the fire.
B. You should direct the spray directly into the fire.
C. You should direct the spray at a vertical bulkhead and allow it to flow over the fire.
D. All of the above

A

A. You should direct the spray at the base of the fire.

58
Q

The BEST method of applying foam to a fire is to __________.(USCG License Exam Question)

A. spray directly on the base of the fire
B. flow the foam down a nearby vertical surface
C. sweep the fire with the foam
D. spray directly on the surface of the fire

A

B. flow the foam down a nearby vertical surface

59
Q

After extinguishing a fire with CO2, it is advisable to __________.(USCG License Exam Question)

A. use all CO2 available to cool the surrounding area
B. stand by with water or other agents
C. thoroughly ventilate the space of CO2
D. jettison all burning materials

A

B. stand by with water or other agents

60
Q

When fighting a fire in a space containing an IMO class 1 hazardous cargo, the most effective fire fighting procedure is to __________.(USCG License Exam Question)

A. shut down the ventilation and exclude all air to smother the fire
B. use water from fire hoses or a sprinkler system
C. activate the fixed CO2 firefighting system
D. use high-expansion foam

A

B. use water from fire hoses or a sprinkler system

61
Q

You are fighting a class “B” fire with a portable dry chemical extinguisher. The discharge should be directed __________.(USCG License Exam Question)

A. at the seat of the fire, starting at the near edge
B. to bank off a bulkhead onto the fire
C. over the top of the fire
D. at the main body of the fire

A

C. over the top of the fire

62
Q

When fighting a fire on a bulkhead using a portable carbon dioxide extinguisher, the stream should be directed at the __________.(USCG License Exam Question)

A. base of the flames, moving the horn from side to side, following the flames upward as they diminish
B. top of the flaming area, moving the horn from side to side, following the flames downward as they diminish
C. center of the flaming area, moving the horn vertically from top to bottom
D. bottom of the flaming area, moving the horn vertically to the top following the flames upward as they diminish

A

A. base of the flames, moving the horn from side to side, following the flames upward as they diminish

63
Q

When electrical equipment is involved in a fire, the stream of dry chemicals should be __________.(USCG License Exam Question)

A. aimed at the source of the flames
B. fogged above the equipment
C. shot off a flat surface onto the flames
D. used to shield against electrical shock

A

A. aimed at the source of the flames

64
Q

You are on watch at sea, at night, when the ordinary seaman reports a fire in number five upper ‘tween deck. Which of the following should NOT be done immediately? (USCG License Exam Question)

A. Sound the general alarm
B. Secure mechanical cargo hold ventilation
C. Call for water on deck
D. Release carbon dioxide into the affected compartment

A

D. Release carbon dioxide into the affected compartment

65
Q

While you are working in a space, the fixed CO2 system is accidentally activated. You should __________.(USCG License Exam Question)

A. secure the applicators to preserve the charge in the cylinders
B. continue with your work as there is nothing you can do to stop the flow of CO2
C. retreat to fresh air and ventilate the compartment before returning
D. make sure all doors and vents are secured

A

C. retreat to fresh air and ventilate the compartment before returning

66
Q

Firefighting foam is only effective when the foam __________.(USCG License Exam Question)

A. penetrates to the bottom of the fire
B. is kept saturated with low-velocity water fog
C. mixes with the burning fuel oil
D. completely covers the top of the burning liquid

A

D. completely covers the top of the burning liquid

67
Q

You are fighting a class “B” fire with a portable dry chemical extinguisher. The discharge should be directed __________.(USCG License Exam Question)

A. to bank off a bulkhead onto the fire
B. at the seat of the fire, starting at the near edge
C. over the top of the fire
D. at the main body of the fire

A

B. at the seat of the fire, starting at the near edge

68
Q

Which statement is TRUE concerning the application of foam on an oil fire? (USCG License Exam Question)

A) It cools the surface of the liquid
B) It gives protection to fire fighting personnel against the heat of the fire.
C) It forms a smothering blanket on the surface of the oil.
D) It should be used at the same time a solid stream of water is being applied.

A

C) It forms a smothering blanket on the surface of the oil.

69
Q

Spontaneous combustion is most likely to occur in __________.(USCG License Exam Question)

A) rags soaked in linseed oil
B) overloaded electrical circuits
C) dirty swabs and cleaning gear
D) partially loaded fuel tanks

A

A) rags soaked in linseed oil

70
Q

An oil fire is classified as class __________.(USCG License Exam Question)

A) A
B) B
C) C
D) D

A

B) B

71
Q

The most likely location for a liquid cargo fire to occur on a tanker would be __________.(USCG License Exam Question)

A) in the midships house
B) at the main deck manifold
C) at the vent header
D) in the pumproom

A

D) in the pumproom

72
Q

The spread of fire is prevented by __________.(USCG License Exam Question)

A) cooling surfaces adjacent to the fire
B) removing combustibles from the endangered area
C) shutting off the oxygen supply
D) All of the above

A

D) All of the above

73
Q

Foam is effective in combating which class(es) of fire? (USCG License Exam Question)

A) Class A
B) Class B
C) Classes A and B
D) ClassesB and C

A

B) Class B

74
Q

Spontaneous ignition can result from __________.(USCG License Exam Question)

A) an unprotected drop-light bulb
B) careless disposal or storage of material
C) smoking in bed
D) worn electrical wires on power tools

A

B) careless disposal or storage of material

75
Q

What is LEAST likely to cause ignition of fuel vapors? (USCG License Exam Question)

A) Static electricity
B) An open running electric motor
C) Loose wiring
D) Explosion proof lights

A

D) Explosion proof lights

76
Q

As an extinguishing agent, foam __________.(USCG License Exam Question)

A) conducts electricity
B) should be directed at the base of the fire
C) is most effective on burning gases which are flowing
D) extinguishes by cooling oil fires below ignition temperature

A

A) conducts electricity

77
Q

The danger associated with using carbon dioxide in an enclosed space is __________.(USCG License Exam Question)

A) frostbite
B) skin burns
C) asphyxiation
D) an explosive reaction

A

C) asphyxiation

78
Q

A foam-type portable fire extinguisher would be most useful in combating a fire in __________.(USCG License Exam Question)

A) solid materials such as wood or bales of fiber
B) flammable liquids
C) a piece of electrical equipment
D) combustible metallic solids

A

B) flammable liquids

79
Q

33) Which extinguishing agent is most effective on a mattress fire? (USCG License Exam Question)

A) CO2
B) Foam
C) Dry Chemical
D) Water

A

D) Water

80
Q

What would be the most effective agent to use to extinguish a fire in drums of flammable liquids stowed on the weather deck of a vessel? (USCG License Exam Question)

A) Carbon dioxide
B) Foam
C) Steam
D) Water fog

A

B) Foam

81
Q

Dry chemical fire extinguishers are effective on which type(s) of fire? (USCG License Exam Question)

A) Burning oil
B) Electrical
C) Paint
D) All of the above

A

D) All of the above

82
Q

When water is used to fight a fire on board a ship, the effect of the weight of the water must be taken into account. How much sea water will increase the weight displacement by one ton? (USCG License Exam Question)

A) 64 cubic feet
B) 35 cubic feet
C) 100 gallons
D) 500 liters

A

B) 35 cubic feet

83
Q

You are on watch at night in port and discover a fire in #1 hatch. Which action should you take FIRST? (USCG License Exam Question)

A) Advise the Chief Mate and Master.
B) Release carbon dioxide into the hatch.
C) Sound the general alarm.
D) Lead a fire hose to the hatch.

A

C) Sound the general alarm.

84
Q

You will extinguish a fire when you remove __________.(USCG License Exam Question)

A) nitrogen
B) oxygen
C) sodium
D) carbon dioxide

A

B) oxygen

85
Q

As a watchstander on the General Rudder, it is your responsibility to know where electric breakers and ventilation is located to be able to secure the scene for fires.
A. True
B. False

A

A. True

86
Q

What (3) elements compose the Fire Triangle?

A
  1. Fuel
  2. Oxygen
  3. Heat
87
Q

What is the fourth element added to the Fire Triangle in order to make the Fire Tetrahedron?

A

An exothermic chemical reaction

88
Q

What are (4) advantages of water as a fire fighting medium?

A
  1. Most versatile
  2. Easiest to acquire and use
  3. Readily available
  4. Cheap (free)
89
Q

What is the primary method by which water extinguishes fire?

A

Removal of heat

90
Q

What are (4) disadvantages of water as a fire fighting medium?

A
  1. Can cause stability issues
  2. Can damage ship components and cargo
  3. Conducts electricity - dangerous for Class C fires
  4. Can be less effective against Class B fires
91
Q

What is advantage of foam as a fire fighting agent? (2)

A
  1. Very effective against Class B fires

2. Can blanket a large surface area

92
Q

What is the disadvantage of foam as a FF agent?

A

Must completely cover a surface, any break in the surface coverage can lead to re-flash

93
Q

What is the advantage of CO2 as a FF agent? (3)

A
  1. Unlikely to damage ship systems or cargo
  2. Can be distributed throughout the ship in pipes
  3. Very effective against Class C fires
94
Q

What is the main disadvantage of CO2 for FF?

A

High suffocation risk to personnel in enclosed spaces

95
Q

What are (3) of the most important issues with CO2 for FF on ship?

A
  1. High risk to personnel
  2. Large quantities of gas required
  3. Multiple deployments of gas is not possible
96
Q

Why is HALON no longer authorized for new build ships as a FF agent?

A

Concern over environmental damage due to CFCs (Chlorofluorocarbons)

97
Q

What are advantages to NOVEC FF systems? (5)

A
  1. Less harmful to personnel than CO2
  2. No special storage rooms required
  3. Not stored under pressure
  4. Easy to handle
  5. Doesn’t require as much volume
98
Q

What are 2 disadvantages to NOVEC?

A
  1. High cost

2. Toxic gas can form in engine room fires

99
Q

List the types of fire sensors found aboard a ship? (3)

A
  1. Smoke Detectors
  2. Heat Detectors
  3. Flame Detectors
100
Q

The best way to deal with fires on board ships is to __________ them.

A

Prevent

101
Q

One of the fundamental principles to preventing fires aboard ship is by good __________.

A

Housekeeping

102
Q

Good housekeeping can be defined by keeping spaces clean and ________ free and ensuring good __________ and upkeep on equipment.

A
  1. Trash

2. Maintenance

103
Q

Defn: A type of combustion that occurs by self-heating due to an exothermic reaction that leads to thermal runaway.

A

Spontaneous combustion

104
Q

The eductor used to distribute fire fighting foam operates on the _________ Principle.

A

Venturi

105
Q

How does bulkhead design and construction play a part in fire fighting on a ship? (2)

A
  1. Limits the spread of flame, smoke, and heat

2. Creates “Fire Zones”

106
Q

The document that details clear instructions for each individual on a vessel regarding the actions that they should take in the event of an emergency is the ________.

A

Muster List / Station Bill

107
Q

A general arrangement drawing of a ship detailing all safety appliances and used to assist shore-based fire fighters in combating fire on a ship is called the ______________.

A

Fire Control Plan

108
Q

Defn: A body completely or partially submerged in a liquid, at rest, is acted upon by an upward, or buoyant force the magnitude of which is equal to the weight of the fluid displaced by the body.

A

Archimedes’ Principle

109
Q

Defn: The point at which the sum of the vertically acting downward forces of gravity can be considered to act.

A

Center of Gravity (CG) / (B)

110
Q

Defn: The point considered to be located at the center of the displaced water or the center of the immersed portion of the hull.

A

Center of Buoyancy (CB) / (B)

111
Q

Defn: The point where the upward force vector from the Center of Buoyancy intersects the transverse centerline of a vessel.

A

Metacenter

112
Q

Defn: The distance between the CG and the Metacenter; the indicator of the initial stability of a vessel

A

Metacentric Height

113
Q

Defn: The ability of a ship to initially resist forces acting upon it to move it out of its stable upright position.

A

Initial stability

114
Q

Defn: The enclosed, watertight volume of a vessel situated above the waterline.

A

Reserve buoyancy

115
Q

For a ship to be considered “stiff” it must have a _______ (high or low) GM value and it possesses a _______ (short or long) rolling period

A
  • High

- Short

116
Q

A ship that has a low GM value is said to be “_______”.

A

Tender

117
Q

Vessels with long rolling periods possess ______ (high or low) metacentric heights.

A

Low

Naval Arch (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions