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CVN 77 ABF Below Deck Systems and Operations Questions and Answers Grade A+
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CVN 77 ABF Below Deck Systems and Operations Questions and Answers Grade A+
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1|Page | © copyright 2024/2025 | Grade A+CVN 77 ABF Below Deck Systems
and Operations Questions and
Answers Grade A+
What JP-5 fueling system is used to receive fuel onboard ship?
✓ Fill and transfer system
What are the two types of filter in the reclamation system
✓ 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?
✓ 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?
Master01 | October, 2024/2025 | Latest update
, 1|Page | © copyright 2024/2025 | Grade A+
✓ 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?
✓ 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?
✓ JP-5 service system from aft filter leg
Which JP-5 system is use to fuel diesel generators, boilers, small boats, and
tractors?
✓ JP-5 auxiliary system
What are the two main purpose of the wearing rings of the centrifugal service
pump
✓ 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
Master01 | October, 2024/2025 | Latest update
, 1|Page | © copyright 2024/2025 | Grade A+
✓ 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
✓ 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
✓ JP-5 pump rooms
What is the rated capacity and operating pressure of the transfer pump used
in conjunction with the model B214AS-300
✓ 300 gmp at 50 psi
Sliding vanes to the rotary vane pump are made of what type of material
✓ Head O-rings
Master01 | October, 2024/2025 | Latest update
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