Exam (elaborations)
CVN 77 ABF BELOW DECK SYSTEMS AND OPERATIONS TEST QUESTIONS AND ANSWERS
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CVN 77 ABF BELOW DECK SYSTEMS AND OPERATIONS TEST QUESTIONS AND ANSWERS...
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What JP-5 fueling system is used to receive fuel onboard the ship? -ANSWER Fill and transfer system
What are the two types of filter in the reclamation system - ANSWER
Pre-filter and a filter/separator (300gpm) unit
Which of the two independent stripping systems in the pump room has
the tailpipe extending
3/4 inch off the bottom of the tank? - ANSWER Hand-operated
stripping system
What pumps are used to remove the last 24 inches of usable fuel
remaining in the storage
tanks after the transfer pumps lose suction and when consolidating fuel
or before ballasting a
storage tank? - ANSWER Motor stripping pumps
When, if ever, are the service system's service pumps used to cross-
connect with the transfer
system's transfer pump suction header? - ANSWER When the service
pumps are used for off-loading JP-5
What system is used by an abf to supply fuel to aimd's jet test shop for
troubleshooting aircraft jet emgines? - ANSWER JP-5 service system
from aft filter leg
Which JP-5 system is use to fuel diesel generators, boilers, small boats,
and tractors? - ANSWER JP-5 auxiliary system
, What are the two main purpose of the wearing rings of the centrifugal
service pump - ANSWER To minimize leakage between the discharge
and suction chambers and allow for wear between the impeller and
pump casing
What is the function of the mechanical seals of a centrifugal service
pump - ANSWER They guard against leakage from the pump and
prevent air from entering the casing
around the shaft.
What is the purpose of the service pump flexible coupling - ANSWER
To allow connection of the pump and motor (or gear reducer) shafts with
a minute
amount of misalignment
Where are the service pump controllers, control panel, indicators, and
HMI flat panel display located - ANSWER JP-5 pump rooms
What is the rated capacity and operating pressure of the transfer pump
used in conjunction with the model B214AS-300 - ANSWER 300 gmp
at 50 psi
Sliding vanes to the rotary vane pump are made of what type of material
- ANSWER Head O-rings
What type of flexible pump coupling uses a gasket and two seal rings
fitted to its cover to prevent grease leakage - ANSWER Falk type f
steel flex coupling
What type of flexible pump coupling is made of two bronze halves
cushioned with a rubber spider - ANSWER Lovejoy coupling
What type of valve is used in the JP-5 system is hen straight flow is
desired with a minimum amount of restriction - ANSWER Gate galve
Globe valves may be used to limit fuel flow through the valve by -
ANSWER Throttling
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