Chapter 2 Flashcards
Which of the following is NOT considered a major pumping system?
A.) Fill and transfer system
B.) Stripping system
C.) Jet test system
D.) Service system
C.) Jet test system
The service system is typically designed to be isolated into how many quadrants?
Four
Transfer main branch headers connect the transfer main to…
storage tank manifolds
What valves are used to isolate the transfer system during secured conditions and to control the flow of JP-5 during various transfer and filling operations?
Bulkhead cutout valves
What devices are arranged in the transfer pump’s discharge header to enable both purifiers to operate simultaneously using any two of the three transfer pumps?
Two cutout valves
What system provides the capability to reclaim JP-5 received from hose flushing, tank stripping operations, and the initial flow from the fueling-at-sea (FAS)?
Reclamation system
The centrifugal pump used in the JP-5 service system is rated at what gpm capacity?
1,100 gpm
In addition to the two wearing rings installed in the pump casing between the suction and discharge chambers, where are the centrifugal pump’s other two wearing installed?
On the impeller
The centrifugal pump impeller is centered and secured in the pump casing by what devices?
Shaft sleeves and shaft nuts
Rotary vane pumps used for stripping are designed to pump approximately how many gallons per minute and at what pressure?
50 gpm at 50 psi
On a rotary vane pump, what component houses the ball bearings and mechanical seals?
Cylinder head
What type of coupling is a flexible grid member that engages the teeth in the hubs to transmit power?
Falk type-F steel flex
What valve design allows no metal-to-metal contact during regular operations?
High-performance butterfly
What component on the LIMITORQUE valve operator operates the OPEN and CLOSE position indicator lights for the valve?
Limit switch
What device ensures the disk is centered into the base of the valve body in a manifold?
Disk guide
On a manifold, what connects the main-side valve to the tank-side valve?
Nozzle
Which of the following is NOT a function of the flood and drain manifold?
Transferring
What are the three chambers inside the service filter shell?
Inlet, fallout, and outlet
When fuel flows from the coalescer elements to the separator elements, the coalesced water falls out of the fuel by gravity. In which chamber does this take place?
Fallout
What is the pressure drop limit, in psi, on the service fuel filter?
15
During centrifugal purifier operations, where are the solid contaminants collected after they are separated from the fuel?
On the inside bowl wall
What are the ideal operating pressures of the 300 gpm centrifugal purifier?
15 to 25 psi inlet and 20 psi outlet
A total of how many sets of ball bearings support the spindle assembly?
Three
What disk provides a rotating casing for the centripetal pump?
A. Top disk
B. Coupling disk
C. Intermediate disk
D. Paring disk
A.) top disk
When the purifier is in the standby mode, how often should you check the inlet-outlet housing and bowl cover to make sure they are cool to the touch?
A. Every 5 minutes
B. Every 7 minutes
C. Every 10 minutes
D. Every 15 minutes
A.) every 5 minutes
What type of gauge is normally installed on the service filter to read pressure changes from inlet and outlet chambers?
A. Simplex
B. Compound
C. Differential
D. Duplex
.
What type of tank, located between voids, is an integral part of the ship’s underwater protective system?
A. Wing
B. Deep centerline
C. Double-bottom
D. Peak
.
What is the difference between the JP-5 in a servicetank, compared to JP-5 in a storage tank?
A. It passes through a filter or centrifugal purifier.
B. It is filled directly from the refueling station downcomer.
C. It contains clean JP-5 defueled from defueled aircraft.
D. There is no difference.
.
Which of the following fittings is installed at the lower end of a sounding tube?
A. Brass vortex plate
B. Striker plate
C. Brass non-vortex plate
D. Bellmouth plate
.
The STAR TLI uses a sound assembly that allows the radar head to _________ away from the sounding tube.
A. lift
B. fall
C. swivel
D. lock
C.) swivel
The STAR TLI has how many modes of operation?
2 (normal, simulation)
During normal operation, the STAR TLI will output a ________ mA signal in proportion to the level of liquid in the tank.
level A 4 to 20
How does the operator control pumps and valves form the JP-5 Control Console?
By selecting displayed symbols and pop-up dialog boxes via screen displays.
When the JP-5 Trans/Strip is activated on the Forward Delivery screen, what happens?
.
On the General Fault or Alarm Display and Description table, what view indicates Cutout?
.
What does the description “unauthorized fill” mean?
.
When the pump is activated using the Control Console, what does the pump indicator display when the pump is running normally?
.
On the console display, an upper case letter E next to the valve symbol for a commandable valve indicates that the valve is________.
.
Tank level on a partially filled tank is light ________.
.
What copy of the AFOSS would be found in a filter room?
.
Before fuel can be pumped into any tank in a nest of storage tanks, what condition must be met?
.
After the initial samples are obtained, how often are samples taken when on-loading fuel?
.
Select the correct sequence of flow when off-loading JP-5 from a servicetank.
.
What is the Navy’s largest pollution problem?
.
