Engineering Casualty Control & Plant Operations Flashcards
what is the most effective form of engineering casualty control?
casualty prevention
what NSTM contains general guidelines concerning engineering casualty control?
NSTM 079 volume 3
individual casualties located within the EOCC are to be handled in priority of what three actions?
controlling actions, immediate actions and supplementary actions
what actions within the EOCC must be committed to memory?
controlling and immediate
who is responsible for developing engineering training team (ETT) drills?
engineer officer
prior to conducting ETT drills, who must approve the drill package?
commanding officer
who is responsible for maintaining a master ETT drill package?
MPA
what are three phases of engineering casualty control?
limitation of the effects of damage, emergency restoration and completing repairs
who is the approval authority for locally generated EOCC procedures?
the commanding officer
the safest engineering plant alignment is what?
split plant operation
what document along with the EOCC is used to combat a Main engineering space Class “B” fire?
main space fire doctrine (MSFD)
after the propulsion plant has been secured and effectively isolated who assumes firefighting efforts during an engineering space fire Class B fire?
DCA
what NSTM contains specific firefighting techniques for main engineering Class B fires?
NSTM 555
after personnel evacuate a main engineering space, due to a Class B fire, what firefighting agent is normally activated?
Halon 1301
what is used as a propellant for Halon 1301?
nitrogen
after reactivation of Halon 1301 there is a mandatory “soak” time of what duration?
15 minutes
during any casualty to the propulsion plant the EOOW is tasked with maintaining what?
plant control
during a loss of lube oil pressure to the main reduction gears, how is it determined whether bearing metal damage occurred?
by shifting and inspecting the lube oil strainer (SICLOS)
how is all major equipment that is damaged due to a casualty and placed out of commission documented?
equipment is logged by noun name in the engineering log with a detailed description of the casualty
who is notified first during all underway casualties affecting propulsion or the ship’s mission?
the OOD
when connecting a run of casualty power cables, it is always connected in what manner?
from the load to the source
what action must be taken if you hear a metallic sound within the reduction gear?
stop and lock shaft IAW EOCC procedures
what is the recommended firefighting agent for a Class C fire?
CO2
during a Class C fire, what is the first step in combating the fire?
de-energize the power source
who authorizes the entry into an electrical panel that is subjected to a Class C fire?
the supervisory at the scene IAW EOCC
who determines electrical damage during a Class C post fire investigation?
repair electrician
why is PKP not recommended for use with a Class C fire?
due to the corrosive properties of PKP
who authorizes the energizing of casualty power cables?
the DCA via the engineer officer
what is the principal sound powered communication circuit used during engineering casualty control?
2JV
what damage control repair locker is assigned to combat main propulsion space casualties?
repair five
who gives permission to the firefighting attack team to enter the main propulsion space to combat a Class B fire?
DCA
how many sources of firefighting agent must be used to combat a main switchboard Class C fire?
at least two independent CO2 sources
what are three common causes of engineering casualties?
lack of positive control, lack of effective communications, lack of systems knowledge
the EOCC procedure MCFED talks of the plane when opening the electrical equipment, what is meant by the team “plane”?
placing ones body part within the door opening of the live electrical component
the EOCC procedure MCFED is used for what fires?
Class C fires located in electrical equipment or distribution areas
what publication contains detailed information on assessing damage sustained from electrical fires?
NSTM 300
what are two indications of an uncontrollable hot bearing on an SSTG?
bearing temperature of 180 degrees F or oil temperature differential between the cooler outlet and bearing temperature exceeds 50 degrees F
what action must be taken if no oil flow is observed in bearing oil flow sight glass on an operating SSTG?
trip and secure generator IAW EOCC procedures
an operating SSTg must be secured when vacuum decreases to what?
15 inches
at what temperature is an SSTG auxiliary condenser considered a hot condenser?
140 degrees F
an unusual drop in boiler steam pressure and a firebox with a steam is an indication of what boiler casualty?
ruptured boiler tube
what is the greatest concern for the engineering plant when a boiler high water casualty occurs?
boiler water carryover to the steam turbines
what engineering casualties require the main shaft and main engine reduction gear to be stopped and locked?
loss of the lube oil pressure, major lube oil leak on main reduction gear, metallic noise in main reduction gear, and uncontrollable hot bearing in the main reduction gear
failure to stop and lock the shaft during a required casualty can have what effect on the main reduction gear?
could damage the engine to the extent of non operation
after restoration from casualty to the main reduction gear the engine must be tested IAW what directive?
EOP (engineering operating procedure)
if the main engine locking device is engaged while the turning gear motor is turning, what would happen?
damage the gear teeth of the turning gear would occur
fluctuating SSTG kW meters on an electrical operating board is a possible indication of what casualty?
Class C fire within the SSTG
what is the goal of engineering casualty control drills?
to increase watch team proficiency
what is the best source for developing ETT drills?
EOCC
when the boiler is secured in repose to a low water casualty, what must be done to the boiler after the boiler is secured?
lift safety valves hand easing gear, 200 to 300 psi below operating pressure
a hot spot on the burner air register on an operating boiler is an indication of what?
brick work failure
blistering paint on the boiler air casing is an indication of what?
fire in the boiler air casing
how long is steam smothering admitted to the boiler air casing during a fire in the air casing?
until the fire is out
after the main engines have bene tested and warmed up, while you wait to answer all bells the engine must be rotated every?
3-5 minutes
what is the minimum lube oil temperature to the main engine before it is allowed to be jacked over?
90 degrees F
if for any reason the main engine turbine rotor cannot be rotated within 5 minutes, what must be done?
secure the main engine
what is the maximum journal bearing temperature on an operating main engine or SSTG as indicated by RTE?
250 degrees F
what is the maximum thrust bearing temperature of on operating main engine or SSTG as indicated by RTE?
270 degrees F
how often is the main engine lube oil sump level checked and logged on an operating main engine?
every hour while in operation
what temperature indicates a hot main condenser?
140 degrees F
what is the maximum temperature rise across a bearing on an operating main feed pump?
50 degrees F
at what vacuum must you secure an operating main condenser?
15 inches
what is the maximum amount of time a boiler can smoke white before you must secure?
one minute
if a steaming boiler suffers a ruptured tube safeties must be lifted to what pressure?
zero psig
a low boiler economizer outlet temperature will have what effect on the superheater outlet temperature?
it will cause a high superheater outlet temperature
what is the maximum allowable RPM differential on operating steam force draft blowers?
300 RPMs
what is the auxiliary exhaust pressure in the engineering plant during normal operations?
15 psig
prior to testing the main engines the EOOW must have permission from whom to test the engine?
OOD
when all main engines have been tested satisfactorily, the EOOW reports this to whom?
OOD
during a white smoke casualty to the boiler what must never be adjusted?
fuel ol header pressure
what is the maximum amount of time a boiler can smoke heavy black before you must secure the boiler?
2 minutes
what is the probable cause of a racing fuel oil service pump?
water in the fuel
what is the temperature at which lube oil is maintained on an operating main engine?
120-130 degrees F
a ruptured feedwater control valve diaphragm will have what adverse effect on the boiler water level?
water level will increase, as the valve will fail open
what is the maximum steady state superheat outlet temperature on a D type 1200 psig boiler?
1000 degrees F
what is the maximum allowable superheater outlet temperature during transition periods of 15 minutes to 1 hour on a 1200 psig D-type boiler?
1020 degrees F
what is the required amount of time necessary to bring a cold boiler online?
2 1/2 to 3 hours
what is the required amount of time necessary to bring a boiler under a steam blanket online?
1 1/2 to 2 hours
after boiler light off you must never exceed what boiler firing rate?
5 percent
boiler air casing is tested at what percentage of boiler full power rating?
50 to 75 percent boiler load
when a line shaft bearing emits smoke, what actions must be taken?
stop and lock the shaft
a low condensate inlet pressure to the DFT will have what detrimental effect on the propulsion plant?
low DFT level, possible low water and improper deaeration of the feedwater
what establishes and helps to maintain a vacuum on the main condenser when the ship is not equipped with air ejectors?
vacuum pumps
during a loss of vacuum casualty on the main condenser, what action must be taken when vacuum decreases to 15 inches?
main engine must be stopped and casualty procedures IAW EOCC are followed
a cracked gauge glass on the main condenser could lead to what casualty?
loss of vacuum on the main condenser
what effect will a low boiler economizer outlet temperature have on the boiler superheater outlet temperature?
will increase superheater outlet temperature
in accordance with EOCC procedures, what three casualties require the lifting of boiling safety valves?
ruptured boiler tube, low water in the boiler and major uncontrolled flooded (prior to the water reaching the brick pan)
what equipment is used to lift the boiler safety valves during a casualty?
boiler safety valve hand easing gear
what EOSS document is used to align the propulsion plant prior to light off?
master light off check list (MLOC)
boiler panting is caused by what?
insufficient air
how long is steam admitted to the boiler firebox when raw fuel is discovered on the firebox floor?
30 minutes
what boiler casualty requires the boiler to be purged after securing the boiler?
ruptured boiler tube
after a boiler high water casualty, what precaution is taken to check the HP turbine for boiler water carryover?
by cracking the turbine casing drains and checking for carryover
a reduction gear journal bearing shows a dramatic increase in temperature and then decreases to ambient temperature, this in an indication of what casualty?
a wiped bearing
how is turbine speed maintained during a jammed throttle casualty?
by using the affected turbine guardian valve
what is the first action taken, when you are experiencing difficulty in maintaining boiler water level on an automated ship?
shift the boiler feedwater control to remote manual
the formation of condensation (fogging) of the boiler periscope is an indication of what casualty?
ruptured boiler tube
the boiler high water alarm is normally set at what parameter?
plus 7 inches
what protects the main feed pump from internal damage due to a loss of suction pressure?
low suction trip
what provides a positive suction head to the main feed booster pump?
the DFT
a loss of the operating main feed pump will cause what boiler casualty?
low water
under normal conditions, the lube oil purifier aligned to the main engine is operated daily for how many hours underway?
12 hours
it is required to change the lube oil in the main sump, when the lube oil neutralization number exceeds what?
.050
what is the smallest percentage of gas (vapor) that will make an ignitable mixture called?
lower explosive limit
what is the highest percentage of gas (vapor) that will make an ignitable mixture called?
upper explosive limit
what propellant is used in the portable PKP fire extinguisher?
CO2 cartridge
what is the capacity of the AFFF variable-nozzle located on a machinery space hose reel?
95 GPM
what class of fire involves combustible metals?
delta
what is the water to AFFF concentration on a proportioning system?
94 % water, 6% AFFF
