Engineering Casualty Control & Plant Operations Flashcards
(109 cards)
1
Q
what is the most effective form of engineering casualty control?
A
casualty prevention
2
Q
what NSTM contains general guidelines concerning engineering casualty control?
A
NSTM 079 volume 3
3
Q
individual casualties located within the EOCC are to be handled in priority of what three actions?
A
controlling actions, immediate actions and supplementary actions
4
Q
what actions within the EOCC must be committed to memory?
A
controlling and immediate
5
Q
who is responsible for developing engineering training team (ETT) drills?
A
engineer officer
6
Q
prior to conducting ETT drills, who must approve the drill package?
A
commanding officer
7
Q
who is responsible for maintaining a master ETT drill package?
A
MPA
8
Q
what are three phases of engineering casualty control?
A
limitation of the effects of damage, emergency restoration and completing repairs
9
Q
who is the approval authority for locally generated EOCC procedures?
A
the commanding officer
10
Q
the safest engineering plant alignment is what?
A
split plant operation
11
Q
what document along with the EOCC is used to combat a Main engineering space Class “B” fire?
A
main space fire doctrine (MSFD)
12
Q
after the propulsion plant has been secured and effectively isolated who assumes firefighting efforts during an engineering space fire Class B fire?
A
DCA
13
Q
what NSTM contains specific firefighting techniques for main engineering Class B fires?
A
NSTM 555
14
Q
after personnel evacuate a main engineering space, due to a Class B fire, what firefighting agent is normally activated?
A
Halon 1301
15
Q
what is used as a propellant for Halon 1301?
A
nitrogen
16
Q
after reactivation of Halon 1301 there is a mandatory “soak” time of what duration?
A
15 minutes
17
Q
during any casualty to the propulsion plant the EOOW is tasked with maintaining what?
A
plant control
18
Q
during a loss of lube oil pressure to the main reduction gears, how is it determined whether bearing metal damage occurred?
A
by shifting and inspecting the lube oil strainer (SICLOS)
19
Q
how is all major equipment that is damaged due to a casualty and placed out of commission documented?
A
equipment is logged by noun name in the engineering log with a detailed description of the casualty
20
Q
who is notified first during all underway casualties affecting propulsion or the ship’s mission?
A
the OOD
21
Q
when connecting a run of casualty power cables, it is always connected in what manner?
A
from the load to the source
22
Q
what action must be taken if you hear a metallic sound within the reduction gear?
A
stop and lock shaft IAW EOCC procedures
23
Q
what is the recommended firefighting agent for a Class C fire?
A
CO2
24
Q
during a Class C fire, what is the first step in combating the fire?
A
de-energize the power source
25
who authorizes the entry into an electrical panel that is subjected to a Class C fire?
the supervisory at the scene IAW EOCC
26
who determines electrical damage during a Class C post fire investigation?
repair electrician
27
why is PKP not recommended for use with a Class C fire?
due to the corrosive properties of PKP
28
who authorizes the energizing of casualty power cables?
the DCA via the engineer officer
29
what is the principal sound powered communication circuit used during engineering casualty control?
2JV
30
what damage control repair locker is assigned to combat main propulsion space casualties?
repair five
31
who gives permission to the firefighting attack team to enter the main propulsion space to combat a Class B fire?
DCA
32
how many sources of firefighting agent must be used to combat a main switchboard Class C fire?
at least two independent CO2 sources
33
what are three common causes of engineering casualties?
lack of positive control, lack of effective communications, lack of systems knowledge
34
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
35
the EOCC procedure MCFED is used for what fires?
Class C fires located in electrical equipment or distribution areas
36
what publication contains detailed information on assessing damage sustained from electrical fires?
NSTM 300
37
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
38
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
39
an operating SSTg must be secured when vacuum decreases to what?
15 inches
40
at what temperature is an SSTG auxiliary condenser considered a hot condenser?
140 degrees F
41
an unusual drop in boiler steam pressure and a firebox with a steam is an indication of what boiler casualty?
ruptured boiler tube
42
what is the greatest concern for the engineering plant when a boiler high water casualty occurs?
boiler water carryover to the steam turbines
43
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
44
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
45
after restoration from casualty to the main reduction gear the engine must be tested IAW what directive?
EOP (engineering operating procedure)
46
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
47
fluctuating SSTG kW meters on an electrical operating board is a possible indication of what casualty?
Class C fire within the SSTG
48
what is the goal of engineering casualty control drills?
to increase watch team proficiency
49
what is the best source for developing ETT drills?
EOCC
50
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
51
a hot spot on the burner air register on an operating boiler is an indication of what?
brick work failure
52
blistering paint on the boiler air casing is an indication of what?
fire in the boiler air casing
53
how long is steam smothering admitted to the boiler air casing during a fire in the air casing?
until the fire is out
54
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
55
what is the minimum lube oil temperature to the main engine before it is allowed to be jacked over?
90 degrees F
56
if for any reason the main engine turbine rotor cannot be rotated within 5 minutes, what must be done?
secure the main engine
57
what is the maximum journal bearing temperature on an operating main engine or SSTG as indicated by RTE?
250 degrees F
58
what is the maximum thrust bearing temperature of on operating main engine or SSTG as indicated by RTE?
270 degrees F
59
how often is the main engine lube oil sump level checked and logged on an operating main engine?
every hour while in operation
60
what temperature indicates a hot main condenser?
140 degrees F
61
what is the maximum temperature rise across a bearing on an operating main feed pump?
50 degrees F
62
at what vacuum must you secure an operating main condenser?
15 inches
63
what is the maximum amount of time a boiler can smoke white before you must secure?
one minute
64
if a steaming boiler suffers a ruptured tube safeties must be lifted to what pressure?
zero psig
65
a low boiler economizer outlet temperature will have what effect on the superheater outlet temperature?
it will cause a high superheater outlet temperature
66
what is the maximum allowable RPM differential on operating steam force draft blowers?
300 RPMs
67
what is the auxiliary exhaust pressure in the engineering plant during normal operations?
15 psig
68
prior to testing the main engines the EOOW must have permission from whom to test the engine?
OOD
69
when all main engines have been tested satisfactorily, the EOOW reports this to whom?
OOD
70
during a white smoke casualty to the boiler what must never be adjusted?
fuel ol header pressure
71
what is the maximum amount of time a boiler can smoke heavy black before you must secure the boiler?
2 minutes
72
what is the probable cause of a racing fuel oil service pump?
water in the fuel
73
what is the temperature at which lube oil is maintained on an operating main engine?
120-130 degrees F
74
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
75
what is the maximum steady state superheat outlet temperature on a D type 1200 psig boiler?
1000 degrees F
76
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
77
what is the required amount of time necessary to bring a cold boiler online?
2 1/2 to 3 hours
78
what is the required amount of time necessary to bring a boiler under a steam blanket online?
1 1/2 to 2 hours
79
after boiler light off you must never exceed what boiler firing rate?
5 percent
80
boiler air casing is tested at what percentage of boiler full power rating?
50 to 75 percent boiler load
81
when a line shaft bearing emits smoke, what actions must be taken?
stop and lock the shaft
82
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
83
what establishes and helps to maintain a vacuum on the main condenser when the ship is not equipped with air ejectors?
vacuum pumps
84
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
85
a cracked gauge glass on the main condenser could lead to what casualty?
loss of vacuum on the main condenser
86
what effect will a low boiler economizer outlet temperature have on the boiler superheater outlet temperature?
will increase superheater outlet temperature
87
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)
88
what equipment is used to lift the boiler safety valves during a casualty?
boiler safety valve hand easing gear
89
what EOSS document is used to align the propulsion plant prior to light off?
master light off check list (MLOC)
90
boiler panting is caused by what?
insufficient air
91
how long is steam admitted to the boiler firebox when raw fuel is discovered on the firebox floor?
30 minutes
92
what boiler casualty requires the boiler to be purged after securing the boiler?
ruptured boiler tube
93
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
94
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
95
how is turbine speed maintained during a jammed throttle casualty?
by using the affected turbine guardian valve
96
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
97
the formation of condensation (fogging) of the boiler periscope is an indication of what casualty?
ruptured boiler tube
98
the boiler high water alarm is normally set at what parameter?
plus 7 inches
99
what protects the main feed pump from internal damage due to a loss of suction pressure?
low suction trip
100
what provides a positive suction head to the main feed booster pump?
the DFT
101
a loss of the operating main feed pump will cause what boiler casualty?
low water
102
under normal conditions, the lube oil purifier aligned to the main engine is operated daily for how many hours underway?
12 hours
103
it is required to change the lube oil in the main sump, when the lube oil neutralization number exceeds what?
.050
104
what is the smallest percentage of gas (vapor) that will make an ignitable mixture called?
lower explosive limit
105
what is the highest percentage of gas (vapor) that will make an ignitable mixture called?
upper explosive limit
106
what propellant is used in the portable PKP fire extinguisher?
CO2 cartridge
107
what is the capacity of the AFFF variable-nozzle located on a machinery space hose reel?
95 GPM
108
what class of fire involves combustible metals?
delta
109
what is the water to AFFF concentration on a proportioning system?
94 % water, 6% AFFF
