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ABF Study Guide
Terms in this set (115)
How many intermediate disks are in the 300 gpm purifier?
How many intermediate disks are in the 200 gpm purifier?
Vapor Pressure and Distillation
JP-8 NATO Number
What is the purpose of the fill and transfer system?
Receiving JP-5 aboard during underway replinishment. Transferring JP-5 from storage to service tanks. Transferring JP-5 internally forward to aft, port to starboard.
How much oil does the oil sump hold?
8 to 8 and half quarts
What grade is the oil in the oil sump?
90 grade oil
JP-5 Nato number
What is the description of the NAVIFLASH Method?
Uses an electric spark to ignite combustible vapors, and has a transducer that senses pressure buildup, signifying flashpoint.
What does CCFD stand for?
Combined Contaminated Fuel Detector
What is the purpose of the CCFD?
It is used to see the level of solid contamination which is measured by using the principle of light transmission through a milipore filter.
What is the detection range of the CCFD?
0-10 mg/l of solid contamination
Why do we use two milipore filters when conducting a test with the CCFD?
To increase accuracy and eliminate any fuel color effect.
What size are the micron pores for the CCFD?
0.65 micron pores
When conducting a sediment test with the CCFD how much fuel would you use?
When conducting a water test with the CCFD how much fuel would you use?
When must the standard cards be replaced within the CCFD ?
How long does the CCFD take to warm up?
What is the description of the automatic pensky martin?
Determines the lowest flashpoint temperature of fuels and lubricating oils. Also heats up to the specified rate.
There are four replaceable type wearing rings two rotating two stationary. Where are the two rotating located?
Two rotating installed on the impeller.
There are four replaceable type wearing rings two rotating two stationary. Where are the two stationary located?
Two stationary on the pump casing
Why are wearing rings used?
Minimize leakage between the discharge and suction chambers. They allow the wear created between the impeller and pump casing.
What is the most commonly used rotary vane pump used in the JP-5 below deck systems?
Blackmer which is a positive displacement pump
What is the rated pressure for a rotary vane stripping pump?
50 gpm at 50 psi
What is the rated pressure for a rotary vane pump for transferring?
300 gpm at 50 psi
What is the rated capacity for pre-filters?
300 gpm at 125 psi
JP-5 300 Gpm Centrifugal Purifier description?
Bowl speed: 4100 rpm
146 to 152 beats per min.
1770 to 1775 rpm
What is the description of the Aurora JP-5 service pump?
Double suction, single stage
1100 gpm at 150 psi
20 foot suction lift
How far does the recirculating line extend off the bottom of the tank? And at what position?
18 inches horizontally
How far does the service tank suction tailpipe extend from off the bottom of the tank?
What are the two most common manufacturers in JP-5 service pumps?
Aurora, and Buffalo
How far does the hand operated stripping tailpipe extend off the ground?
How far does the motor driven extending tailpipe extend off the ground?
1 1/2 inches
What are the two types of stripping systems in JP-5 below decks?
Motor Driven and Hand operated
What is the reclamation system used for?
To reclaim JP-5
What are service tanks used for?
To service aircraft
What are storage tanks used for?
Bulk storage of JP-5
What are the three seperate and independent pumping systems in JP-5 below decks?
Fill and Transfer
Light to heavy cloud
Causes the fuel and water to mix more easily and become much harder to seperate.
The mixing of two fuels
Brown, grey, or black, stringy or fibrous
What is regarded as coarse sediment?
10 microns or larger
In JP-5 what does sediment most commonly look like?
Rust or sand
To be acceptable to aircraft what must JP-5 look like?
Clean and bright
JP-5 must not contain more than how much free water and how many mg/L
10 ppm Free water and 2 mg/L
Tank cleaning maintenance is authorized by who?
CO and Gas free engineer
The lowest temperature at which the fuel vaporized enough to form a combustible vapor.
The temperature at which solid particles begin to form in the fuel.
Is the measure of a liquids resistance to flow.
Is the ratio of the weight of a given volume of fuel. All gravity determinations are correlated with a specific temperature of 60 degrees.
A nylon collar acts as a wearing ring for the what?
The inside diameter ranges from 200 millimeters to 250 millimeters in increments of what?
The bowl in the purifier must not exceed how much wetcake?
30 pounds or 1 1/2 inches
The service system is typically designed to be isolated into how many quadrants?
Transfer main branch headers connect the transfer main to?
Storage tank manifolds
Centrifugal pump gpm rated capacity?
The centrifugal pump impeller is centered and secured in the pump casing by what devices?
Shaft sleeves and shaft nuts
In a rotary vane pump what component houses the ball bearings and mechanical seals?
What component on the LIMITORQUE valve operator operates the OPEN and CLOSE position indicator lights for the valve?
What device ensures the disk is centered into the base of the valve body in a manifold?
On a manifold, what connects the main-side valve to the tank-side valve?
What is the pressure drop limit, in psi, on the service fuel filter?
A total of how many sets of ball bearings support the spindle assembly?
What disk provides a rotating casing for the centripetal pump?
What type of gauge is normally installed on the service filter to read pressure changes from inlet and outlet chambers?
What type, of tank, located between voids, is an integral part of the ship's underwater protective system?
Before fuel can be pumped into any tank in a nest of storage tanks, what condition must be met?
The overflow tank for that nest must be empty
What type of tank is normally filled first during a refueling operation?
The top of the wing tank is at what level on the ship?
The bottom of the wing tank is at what part of the ship?
Shell of the ship
In the cla-val the defuel valves pressure relief control valve will be set how many psi higher than the delivery pressure?
7 1/2 psi
In the cla-val the fuel valve pressure relief control valve psi will be set how much higher than the delivery pressure?
What is the name of the gravity fueling nozzle used for aux on the flight deck?
How much hose does JP-5 hose reel hold?
How much longer should you cut the continuity wire than the hose it self?
What is the working pressure of the positive displacement refuel pump in fueling stations?
100 gpm 15 psi
Who is the last person to sign off a defeuling operation in the flight deck or hangar bay?
The cla-val functions as a pressure-reducing valve to maintain a constant discharge pressure not to exceed what psi?
The collar is attached by how many ball bearings?
The bottom of the body is attached to the inlet by how many ball bearings?
What is the effective range of spring tension that the pressure relief control valves can be adjusted?
What is used to insulate the swing amphonel stud that also prevents it from completely grounding out?
What is the primary device used at shore installations to keep aviation fuels clean and dry?
To reduce static electricity prior to entering a fuel tank what component is provided inside a fuel system?
What equipment on shore refueling stations provides a continuous check on the cleannes of the fuel passing through the filter/ separators?
Fuel quality monitor
The fuel must be in contact with the metal walls of the relaxation device for at least how many seconds to reduce static charges?
What are installed on mobile refuelers to provide a secondary fail-safe system that closes an internal valve when the fuel level is too high?
High level shutoff
What is the major difference between hoses used at shore facilities and afloat units?
Shore base hoses do not contain electrical bonding wire through the center
In all direct refueling system pantographs, what type of hose coupling is used?
Emergency dry breakaway
What size mesh are the screens used in strainers for overwibg refueling nozzles?
What are the two categories of fuel storage tanks used at ashore refueling activities?
Bulk storage or operational storage
Tank filling connections are regulated to introduce fuel into the tanks at a velocity of no more than how many feet per second of product?
The high level alarm tank system is set at what percent of tank capacity?
What tank alarm system is set at 98% and has a mechanically actuated valve to shut off fuel flow?
High high level alarm
A control device is built-in on all refueling systems ashore and incorporated on all modern aircraft designs to limit surge pressure to what prescribed pressure?
How often should you inspect bonding and grounding cables, clamps, and plugs?
Refueling operations are terminated when lighting is observed at what distance from ashore installations?
What is an aircraft direct refueling system primarily designed for?
Hot refueling aircraft
What is the minimum size for a halon fire extinguisher used at the fueling point of a direct refueling system?
When should you use an eductor on a direct refueling system?
Mobile refueler tanks are made from what type of material?
Aluminum and stainless steel
The pressure refueling nozzle used for bottom loading a mobile refueler is designed to receive the product at what minimum gallons per minute?
To safely conduct refueling operations, what minimum number of gallons of product (fuel) should a refueler/defueler truck tank contain?
How far should mobile refueling trucks be parked from inhabited buildings?
What type of flow meters is installed on truck fill stands?
Temperature compensating positive displacement
What us the preferred method of fuel containment used in refueler parking areas?
Concrete containment curbs
What position should the truck be in during filling operations?
Neutral or park
What is the minimum distance that a refueler truck should be positioned from an aircraft?
Minimum of 10 feet
While inspecting fuel hoses what indication is cause for hose replacement?
Any exposed hose reinforcement material
What is the maximum allowable time for product circulation on a returner that is more than one half full?
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