How does foam extinguish an oil fire?
By excluding the oxygen from the fire
By cooling the oil below the ignition temperature
By removing the fuel source from the fire
By increasing the weight of the oil
Except in rare cases, it is impossible to extinguish a shipboard fire by __________.
removing the fuel
interrupting the chain reaction
removing the oxygen
removing the heat
If a firefighting situation calls for low-velocity fog you would __________.
attach a low-velocity fog applicator with the nozzle shut down
order the engine room to reduce pressure on the fire pump
put the lever on an all-purpose fire nozzle all the way forward
put the lever on an all-purpose fire nozzle all the way back
The total available supply of CO2 for use in a fixed extinguishing system of a cargo vessel shall be at least sufficient for_________________.
Space requiring largest amount
All cargo-space
All the space of the vessel
Engine room and largest cargo space
A fire is considered 'under control' when________ .
the fire is contained and no longer spreading
all hands are at their fire stations
all firefighting equipment is at the scene
the fixed systems are activated
A definite advantage of using water as a fire extinguishing agent is its characteristic of __________.
rapid expansion as water absorbs heat and changes to steam
alternate expansion and contraction as water in a liquid state becomes a vapor
absorption of smoke and gases as water is converted from a liquid to a vapor
rapid contraction as water is converted from a liquid to a vapor
At the required fire drill, all persons must report to their stations and demonstrate their ability to perform duties assigned to them ________.
In the Muster List (“Station Bill”)
At the previous safety meeting
By the person conducting the drill
By the Coast Guard regulations
You are underway when a fire breaks out in the forward part of your vessel. If possible you should __________.
put the vessel's stern into the wind
call for assistance
abandon ship to windward
keep going at half speed
A galley grease fire would be classified as .
Class B
Class A
Class C
Class D
In the event of a fire, the doors to a stair tower must be closed to prevent the spread of fire by __________.
convection
conduction
radiation
ventilation
A fire may spread by which of the following means?
transmission
contraction
ventillation
The function of the bypass valve on the self-contained breathing apparatus is to __________.
allow the wearer to manually give himself oxygen
control the pressure of the oxygen as it enters the body
release excess heat which would otherwise cause the bottle to explode
allow exhaled gases to pass outside the bottle
Foam extinguishes fire by_______.
Smoothering
Cooling
Chemical action
Inerting the air
Extinguishing oil fire is very effective when ________.
Cutting off oxygen source
Cooling below its ignition temperature
Removing fuel
Spraying with water
Fuel vents are fitted with corrosion resistant screen to prevent ____.
Flames entering the tank vent
Escape of flammable vapors
Corrosion in the tank vent
Damage to the ball check
Which fire extinguishing agent has the greatest capacity for absorbing heat?
Water
Foam
Carbon dioxide
Dry chemical
Annual servicing of a hand portable CO2 fire extinguisher includes_________ .
weighing the cylinder and recharging if weight loss exceeds 10% of the weight of the charge
inspecting the pressure gauge to ensure the needle is within operating range
hydrostatic testing of the cylinder
discharging, cleaning inside, and recharging
A spark arrestor _______.
prevents sparks from getting out of an engine's exhaust system
keeps sparks from falling into an open tank
secures covers on ullage openings
grounds static electricity
On an inspection of your tankship you notice that there are no portable fire extinguishers in the pump room. To comply with regulations, you __________.
should arrange to have a B-II extinguisher placed in the lower pumproom
need not be concerned since no portable extinguishers are required in the pumproom
should arrange to have a B-II extinguisher placed in the vicinity of the exit
may substitute sand for the required extinguishers
How often shall crew members participate in fire drills?
once every month
once every 6 months
once every year
once every week
All of the following are part of the fire triangle except __________.
electricity
oxygen
heat
fuel
What is required in addition to the heat, fuel, and oxygen of the fire triangle to have a fire?
Chain reaction
Pressure
Smoke
Electricity
Fire alarm system thermostats are actuated by __________.
the difference in thermal expansion of two dissimilar metals
smoke sensors
pressure loss due to air being heated
an electric eye which actuates when smoke interferes with the beam
The supply of carbon dioxide used in the fixed extinguishing system aboard a cargo vessel must be at least sufficient for __________.
the space requiring the largest amount
the engine room and largest cargo space
all cargo spaces
all the spaces of a vessel
Valves on steam-smothering lines to cargo tanks shall be set with __________.
the master control valve shut and valves to individual cargo tanks open
the master control valve shut and valves to individual cargo tanks shut
the master control valve open and valves to individual cargo tanks shut
all valves open
What is the function of the bypass valve on the self-contained breathing apparatus?
In the event of a malfunction in the equipment, the valve can be operated manually to give the wearer air.
The valve opens in excessive heat to release the oxygen in the bottle and prevent the bottle from exploding.
When pressure in the apparatus exceeds 7 psi above atmospheric pressure, the valve opens to release pressure.
The valve reduces the high pressure in the bottle to about 3 psi above atmospheric pressure.
You are fighting a class "B" fire with a portable dry chemical extinguisher. The discharge should be directed __________.
at the seat of the fire, starting at the near edge
to bank off a bulkhead onto the fire
over the top of the fire
at the main body of the fire
You are fighting a fire in the electrical switchboard in the engine room. You should secure the power, then __________.
use a portable CO2 extinguisher
use a portable foam extinguisher
use a low-velocity fog adapter with the fire hose
determine the cause of the fire
When two fire hose teams are attacking a fire they should __________.
not attack the fire from opposite sides
use different fire hose pressures
use fire hoses of different sizes
not wear protective clothing
The smoke detector (fire indicator) indicates fire in a cargo hold loaded by general cargo. What first action should be taken?
Close the ventilation system and other openings to the hold in order to choke the fire
Use the ship's gas extinguishing central system to put out the fire
Inspect the scene before deciding the method to be used for fire-fighting
Start the fire pumps, open the hatches and start fighting the fire by fire hoses
Which extinguishing agent is most likely to allow reflash as a result of not cooling the fuel below its ignition temperature?
CO2
Water stream
Water spray
Combustible gas indicators operate by drawing an air sample into the instrument _______.
over an electrically heated platinum filament
where it is mixed with nitrogen
where it is ignited by a sparking device
where its specific gravity is measured
Which of the following fire extinguishing agents has the greatest capacity for heat absorption?
Water fog
Chemical foam
A liquid, as listed on a Material Safety Data Sheet (MSDS) having a flash point at or above 100°F is called a/an ____________.
combustible liquid
explosive liquid
flammable liquid
viscous liquid
The MAIN objection to the use of a dry chemical fire extinguisher on an electrical fire is that the __________.
dry chemical leaves a powder residue which may render electrical equipment inoperative
extinguishing action is not as good as with soda acid
powder conducts electricity back to the fire fighter
extinguisher will need to be recharged
Which of the documents below identifies chemical listings, its physical properties, health hazards as well as firefighting procedures?
Material Safety Data Sheet
Hazardous Chemical Information Sheet
Hazardous Chemical Loading Document
Chemical Characteristics Document
Through which of the listed process is sufficient heat produced to cause spontaneous ignition?
Heat of oxidation
Heat of expansion
Latent heat of sublimation
Latent heat of condensation
Gasoline is a flammable liquid whose vapors are ___________.
all of the above
heavier than air
toxic
highly explosive
Which of the petroleum products listed has the lowest flash point?
Diesel oil
Hydraulic oil
Lubricating oil
Refrigeration oil
When firing a pyrotechnic distress signal, it should be aimed__________.
approximately 60° above the horizon
into the wind
straight ahead
at the vessel whose attention you want to attract
Which of the following statements concerning chemical foam is TRUE?
It is formed as a result of the reaction between dry powder and water.
It is recommended for use on fires in main propulsion electric motors.
Foam bubbles are formed as a result of mechanical mixing with air.
It is useful in fighting chemicals fires only.
Who is responsible to the Operation Manager for the technical aspects and seaworthiness of the ships, except for the engineering spaces and personnel?
Marine Superintendent
Master
Designated Person Ashore
Fleet manager
What is the purpose of adopting international convention onboard?
Provide uniform practice
Port state control implementation
Avoid accident onboard
To confirm with requirements
In firefighting, the term 'protecting exposures' means _____________.
taking measures to prevent the spread of fire from the involved compartment to an adjacent compartment
protecting fire fighters from direct exposure to the heat of the fire
keeping flames from burning at the tank vents
protecting exposed areas of the superstructure from flames
What is the main reason of implementing provisions on International Conferences or Convention onboard?
Provide uniform practice.
Reduce accidents at sea.
Port State recommendations
Class Society recommendations
Automatically closed fire dampers installed in the vessel's ventilation system are operated by the use of a ____________.
fusible link
remote operated valve
CO2 system pressure switch
heat or smoke detector
If the crew are still on board and salvage tug is around, what would the master do if it is determined that saving the ship is not possible?
Abandonship and let go
Save the ship
Don't abandonship
Contact coast guard
Mechanically foam used for firefighting is produced by mechanically mixing and agitating ___________.
foam chemical with air and water
soda acid and water
dry chemical and water
bicarbonate soda with air and water
Which is NOT a mandatory requirement of the shipboard oil pollution emergency plan?
Diagrams
Steps to control a discharge
National and local coordination
Reporting requirements
What is termed as the process of killing the ineffective bacteria from the water so as to make it safe for drinking?
Disinfection
Sterilization
Tri-oxidation
Ultra-hydration
Which of the following statements is true concerning Aqueous Film Forming Foam (AFFF)?
AFFF controls the vaporization of flammable liquids by means of a water film.
The agent cannot be used in conjunction with dry chemicals.
AFFF can only be produced from fresh water.
Because AFFF works through surface tension, it can not be broken up if it is agitated.
What is a major advantage of using a positive pressure type self-contained breathing apparatus?
The speed with which it can be put into operation is around 45 seconds.
The equipment is lightweight and the wearer can work without difficulty in confined spaces.
The average operating time is over an hour.
Facial hair will not affect the mask performance.
Which of the following conditions is true concerning flammable liquid vapors with a concentration above the explosive limit?
The mixture is too rich to burn.
The mixture is too lean to burn.
The vapor is about to explode.
Conditions are perfect for combustion.
According to the Pollution Prevention Regulation, who makes final decision of when oil transfer may begin?
The designated persons in charge of vessel and facility
The senior deck officer
The captain of the port
Any local coast guard representative
During man overboard situation, the first person who saw the incident shall _______ .
throw a life ring and inform the bridge
throw a life ring and shout for help
shout for help and do not lose sight of the man in the water
throw a marker and inform any deck officer around
Why an upper limit switch is used when handling lifeboat equipment?
To prevent the davits from pulling up against the stops
To keep the tricing line from releasing or getting tangled
To assist in cranking in the lifeboat
To stop the lifeboat from being lowered
“Dry Powder” fire extinguishers, which contain a mixture of graphite and sodium chloride as the extinguishing agent, are generally used to fight which type of fire?
Chemical foam is most suitable for use on a fire involving _____________.
oil
burning insulation
hot bulkheads
electrical machinery
Which of the following statements is true concerning carbon dioxide when used as a fire extinguishing agent?
Its smothering effect is excellent for class B fires.
Carbon dioxide is corrosive when exposed to fire.
Carbon dioxide should be applied slowly to a large engine room fire.
Its total cooling effect is far greater than water
Fires resulting from “spontaneous combustion” are usually caused by the improper disposal of________.
oily rags
cigarette butts
burner torches
lighted matches
Which of the listed tanks present the greatest potential for an explosion?
A partially filled tank of diesel oil
A full tank of diesel oil
A full tank of lubricating oil
A partially filled tank of hydraulic oil
If a fire hose is left unattended and under pressure with the nozzle shut off, the fire hose will _____.
Remain motionless
Burst under pressure
Lash about violently
Become elongated by 125%
Fire main outlet valves or hydrants located on e decks shall be in _____.
protected against freezing or be fitted with valves and drain valves
behind glass or a suitably marked enclosure
opened up and internally examined at each Coast Guard biannual inspection for certification
open area or at the gangway near the emergency hallway
If a fire occurs in an electric cable, in which the inner layers of insulation have burned, you should FIRST _________.
secure power to the cable
cut the cable with a cable cutter
insulate the melted ends
remove the electrical load on the cable
According to 46 CFR's Part 96, what is the minimum period of time that an approved self-contained breathing apparatus (SCBA) is required to provide an air supply?
30 minutes
10 minutes
15 minutes
60 minutes
Which unit will provide excellent mobility to the wearer in an unsafe atmosphere and provide oxygen to sustain life?
A self-contained breathing apparatus
A fresh air breathing apparatus
An ammonia gas mask
Immersion suit
In lifeboat situations, which of the following visual distress signals is acceptable for daylight use only?
Orange smoke signal
Handled red flare
Self-contained rocket propelled parachute red flare
Red aerial pyrotechnic flare
Which of the following conditions represents the appropriate time for setting off distress flares and rockets?
Only when there is a chance of them being seen by rescue vessels
At half-hour intervals
At one hour intervals
Immediately upon abandoning the vessel
When using a handheld smoke signal aboard a survival craft, you should activate the signal_________.
on the downwind side of the craft
on the upwind side of the craft
inside the craft
at the stern of the craft
A distress___________.
may be used individually in conjunction with other distress signals
consists of 5 or more short blasts of the fog signal apparatus
consists of the raising and lowering of a large white flag
is used to indicate doubt about another vessel’s intensions
After having activated the emergency position indicating radio beacon, you should ____________.
leave it on continuously
turn it off for five minutes every half-hour
turn it off and on at five minute intervals
turn it off during daylight hours
If you have to abandon ship, the EPIRB can be used to _____________.
send radio homing signals to searching aircraft
hold the lifeboat's head up into the seas
generate orange smoke
seal leaks in rubber rafts
The centrifugal brake mechanism incorporated in a lifeboat handling winch is intended to _________.
automatically control the speed of lowering by gravity
automatically stop the boat if electric power fails
mechanically stop the boat when the hand break fails
hold the load suspended during lowering operations
After the lifeboat has reached the top of the davit heads, the davit arms begin moving up the tracks until the movement is stopped by the __________.
limit switch
hoist man
brake handle
preventer bar
Limit switches on gravity davits should be tested by __________.
pushing the switch lever arm while the winch is running
the engineers, from a panel in the engine room
shutting off the current to the winch
it can be tested as long as the port surveyor is the one inspecting it
When abandoning ship, after launching the motor lifeboat you should __________.
stay in the immediate area
plot course for nearest land
go only with the direction of the sea
go one direction until fuel runs out
If you are forced to abandon ship in a lifeboat, you should _______.
remain in the immediate vicinity
head for the nearest land
head for the closest sea-lanes
vote on what to do, so all hands will have a part in the decision
Using a sea anchor with the survival craft will ___________.
reduce your drift rate
keep the survival craft from turning over
aid in recovering the survival craft
increase your visibility
All personnel should be familiar with the lifeboats _________.
boarding and operating procedures
maintenance schedule
navigational system
fuel consumption rates
Engines for lifeboats are required to have sufficient fuel to operate for how many hours?
24 hours
6 hours
12 hours
18 hours
When a rescue vessel approaches a survival craft in heavy seas, the person in charge of the survival craft should ________.
wait for calmer weather before transferring personnel
tie up the rescue vessel
transfer only those who are seasick
transfer all personnel immediately
The purpose for the bag or box on top of some survival craft is to ______________.
right it in case of capsize
increase area for radar detection
act as a sail in case of a power loss
steady the craft in heavy seas
Which of the lifeboat parts listed must be painted bright red?
Releasing gear lever
Hatches
Boat hooks
Compass
Fire and lifeboat stations are required to be listed on the _____________.
muster list
ship's articles
bunk card
forecastle card
A hydrostatic release mechanism for a liferaft ____________.
must be submerged to a certain depth to release automatically
must be wet before it will release
should be kept in a watertight cover except in an emergency
will inflate the raft in its cradle if operated manually
Which of the following operations should be carried out when launching an inflatable liferaft by hand?
Make sure the operating cord is secured to the vessel before throwing it over the side
Open the liferaft casing
Turn the valve on the CO2 cylinder to start inflation
After inflation, detach operating cord from liferaft
If an inflatable liferaft inflates upside down, you can right it by ________________.
standing on the CO2 bottle, holding the bottom straps, and throwing your weight backwards
pushing up on one side.
getting at least three or four men to push down on the side containing the CO2 cylinder
doing nothing, it will right itself after the canopy supports inflate
" You have abandoned ship in tropical waters. Which procedure(s) should be used during a prolonged peroid in a raft? I. Wet clothes during the day to decrease perpiration. II. Get plenty of rest. III. Keep the entrance curtins open."
I, II and III
I only
II only
III only
When a ship is abandoned and there are several liferafts in the water, one of the FIRST things to be done is __________.
secure the rafts together to keep them from drifting apart
separate the rafts as much as possible to increase chances of detection
transfer all supplies to one raft
transfer all the injured to one raft
When the machinery spaces on a tank vessel are protected by a fixed foam extinguishing system, what additional protection is required by Regulations (46 CFR) outside of the machinery space entrance?
Two fire hydrants with hose, nozzle and application
One portable foam extinguisher
Ten cubic feet of sand of with scoop
One semi-portable CO2 extinguisher
The primary function of an automatic sprinkler system is to______.
limit the spread of the fire and control the amount of heat produced
instantaneously extinguish the fire which triggered it
protect people in the areas which have had sprinkler heads installed
alert the crew to the fire
A fireman's outfit carried onboard cargo vessels, must have a _____.
self-contained breathing apparatus
canister -type gas mask
fresh -air breathing apparatus
combustible gas indicator
