Info Flashcards
What is an E7 in the Air Force?
MASTER SGT
How much does a P-100 weigh?
Dry weight is 106lbs
Wet weight is 164lbs
What is the suction lift of a P-100?
Static lift must not exceed 22 Ft from center of the pump to surface of the water
How long will a P-6 run?
4 hrs and at full throttle
-250 GAL a minute at a 12ft suction lift
What # is the awards form?
CG-1650
In the UCMJ what article is RIGHTS ADVISORY IN?
Article 31(b)
What does CAN in electrical stand for?
CONTROLLER AREA NETWORK
A temporary hydraulic hose should be pressure tested to what %?
110%
What does DIN F stand for?
FUSE/BREAKER
What does DIN K stand for?
RELAY
What happens when you increase wire size?
Resistance decreases/ Amperage increases
What size safety chain on 25’RBS trailer?
1/2 IN galvanized steel
Hot surface for flange shielding (Lube oil/ HYDRAULIC OIL) is?
L/O 400 degrees and H/O 650 degrees
What war was the CG fully transferred to the navy?
WW1
How many hours should you allow after an oil change prior to taking a sample?
Oil samples shall not be taken after an oil change or within 25 hrs after oil has been added.
Who writes ENGINEERING STANDING ORDERS?
EPO/EO
How many numbers in the NSN?
13
What does SSS stand for in a SSS clutch?
Synchro-Self-Shifting
How would you test a 4-20ma sensor?
Pressure sensors are tested using a digital multimeter to check for a known value at a given pressure.
What percent of working psi do you test a temporary hose?
110%
When looking at the Spector analysis results what is TIN measuring?
Tin symbol: Sn and it is measuring BEARINGS, BUSHINGS, PISTONS
What is the hose shelf life?
10 YRS
How many drips can a P-100 packing leak?
Between 5 and 60 drops per minute
The P6 pump is what type of engine?
6.5 HP Honda
EMI is limited to how many hours a day?
No more than 2 hrs
What is the max lift of the P100?
22FT
The 225 uses what octane and maximum ethanol percentage?
Unleaded 86 octane or higher
A discharge with honorable service is what type of discharge?
Honorable discharge
The most type of reservoir used in the CG is?
VENTED RESERVOIR aka NON PRESSURIZED RESERVOIR
Fluid in the reservoir should be maintained above?
110 degrees
What is pressure?
Created whenever flow of fluid is resisted.
Why are bypass check valves installed?
To insure uninterrupted flow of fluid.
Contamination causes
80% of all hydraulic system failures
Suction lines usually terminate
2 IN above the bottom of the reservoir to prevent air from entering the system.
Reservoirs are usually mounted
2-6 INCHES above the deck
Non-positive displacement pumps are NOT used in hydraulic systems
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What is an inner tube?
A synthetic rubber layer that is oil resistant
When are EXTRA HIGH PRESSURE HOSES used?
Up to 5000PSI
Shelf life for synthetic hose shall not exceed
10YRS
In a hydraulic system what does a baffle plate prevent?
Prevents fluid from immediately being back drawn into the system
What does the breather assembly ensure?
Atmospheric pressure to be maintained in the reservoir
What is the MOST frequently used hydraulic fluid in the CG?
NAVY HYDRAULIC OIL SERIES 2 & 8
Max pressure of a medium pressure flexible hose?
1200psi
If hydraulic fluid is COLD it will have GREATER VISCOSITY and be too THICK
Which can cause:
-CAVITATION OF THE PUMP
-HIGH RESISTANCE TO FLOW
-GREATER TENDENCY FOR AIR TO REMAIN IN THE FLUID
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If hydraulic is too HOT it will have LOW VISCOSITY and be too THIN
Which can cause:
-DECREASE IN PUMP EFFICIENCY
-INCREASED INTERNAL LINKAGE
-LOSS OF LUBRICATION BETWEEN MOVING PARTS THAT WILL CAUSE EXCESSIVE WEAR AND POSSIBLE SEIZURE UNDER HEAVY LOADS
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Suction hoses must be selected to ensure hose will withstand the VACCUM and PRESSURE of the system
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Heat shrinkable tubing shrinks to ONE HALF of its original diameter when HEATED.
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A Block diagram shows the major components of a system and interconnections of these components and often is used with accompanying text.
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What is an actuator?
A device that usually moves or controls equipment to give a change in position or direction.
What is INDUCTANCE?
Increasing current flowing through the wire causes voltage to be produced by magnetic field, which opposes the charge in current.
In a simpler circuit, the function of the load is to provide RESISTANCE.
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FATALITIES have occurred from circuits with voltage as low as 30
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DO NOT operate a battery above 125 F
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The POLARITY of the battery be determined by MEASURING BETWEEN THE TERMINALS WITH A VOLTMETER
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What is a rectifier?
Uses a series of DIODES TO CHANGE AC ELECTRICITY INTO DC ELECTRICITY
What is a DIODE?
One way check valve for electron flow
A SERIES MOTOR can be hooked up to AC or DC voltage
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Power is measured in what?
WATTS
The unit of measurement for resistance is OHMS it is represented by the letter R
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2 12VOLT 200 AMP batteries that are connected in parallel will result in having 12 VOLTS 400 AMPS
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What is a RUBBER TAPE?
A splicing compound used when the original insulation is rubber
What are conductors?
Materials that permit many electrons to move freely
What are insulators
Materials that allow only a few electrons to move freely.
Wires that are connected are usually depicted on a diagram with a DOT
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An atom with an equal number of electrons and protons is said to be ELECTRICALLY NEUTRAL
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What is power
Rate at which work is done.
Power is represented by the symbol P
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What is a parallel circuit
A circuit that has more than one path of flow for the electronic current.
What is a FARAD
Standard unit of measure for capacitance. It has a unit abbreviation of F
What is a flux?
Invisible magnetic lines of force.
When is resistance measurements useful?
When locating defective circuits and components during corrective maintenance
The exhaust port is machined in the cylinder wall of a 2 stroke engine; PISTON movement open and closes the port.
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When using shop air to clean or dry parts, ensure psi doesn’t exceed
25psi
Why is a primer used?
To provide a richer fuel mixture for starting a cold engine
On a 4 stroke engine, you should NOT adjust the SPARK PLUG ELECTRODE GAP
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What is the Model/ Product number used for?
To determine which services manual is required for the outboard engine.
The drive shaft has a gear called the PINION pressed onto the bottom end that is constant mesh with the forward and reverse gear and each turns in opposite directions anytime the engine is rotated.
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The pinion gear turns both the forward and reverse gears constantly but the forward/reverse gears do not directly move the prop, that is the purpose of the CLUTCH DOG SHIFTER
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The average built in tank will hold
18-50 Gallons
A portable fuel tank will hold
6 Gallons
When doing PMS on a outboard always refer to
The manufacturers technical manual
When doing a compression test on an outboard, pressure gauge readings between cylinders shouldn’t vary by more than 15 PSI, if they do notify supervisor and investigate possible causes.
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Always use a BELT TENSION GAUGE to check alternator belt, DO NOT USE UR THUMB
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Never paint the ZINCS on an outboard or they won’t be effective
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Spark plug replacement should be done when the engine reaches 100 HRS
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Manufactures recommend that you should replace the water pump at least ANUALLY or more often if a casualty occurs on a OUTBOARD
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The IGNITION COIL uses electromagnetic induction to raise voltage
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A ELECTRONIC CONTROL MODULE CONTROLS THE EUI, the ECM sends a command pulse that activates the injector solenoid
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Wearer rings are collar type rings that protect the impeller and housing from wear
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What is an idler gear
Placed between 2 other gears to transfer motion from 1 gear to the other without charging their directions
What is condensation
Heat removed from a vapor to change it to a liquid without a change in temp
