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68 Cards in this Set
- Front
- Back
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piston engine combustion cycle is called ….
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otto cycle
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piston engine combustion cycle is at ….
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constant volume
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piston engine 4 cycles
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induction
compression expansion exhaust |
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IHP stands for ...
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Indicated Horse Power
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IHP is …. @ ...
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power developed
power stroke |
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BHP stands for ….
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Brake Horse Power
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BHP is …. @ ...
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useful power
prop shaft |
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Torque is the force that ….. to produce ...
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causes crankshaft rotation
BHP |
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Piston Engine mechanical efficiency
formula |
%= (BHP/IHP) x 100
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a measure of compression @ piston engines
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compression ratig
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Fuel injection system
no … is required |
carburetor
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Fuel injection system
… is supplied to cylinders . |
metered fuel
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Fuel injection system
advantages better …. |
fuel to air ration
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type of fuel system that increase engine responsiveness
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Fuel injection system
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Fuel injection system
disadvantages … @ thin fuel lines |
vapor lock
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Fuel injection system
disadvantages … risk @ thin fuel lines |
contamination
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Fuel injection system
components (4) |
FCU (fuel control unit)
Manifold (fuel distribution ) Fuel lines Discharge Nozzle |
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Blue smoke is
indication of … due to ... |
oil burn @ cylinder
piston ring problem |
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Black smoke is
indication of … due to ... |
unburned fuel
too rich fuel |
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White smoke
is indication of … |
hi water content
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Detonation happens ... the …
and caused by …. |
after
spark unstable combustion @ pwr srok |
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detonation produces a … noise
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knocking
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Pre ignition is a phenomenon
happening before …. caused by ….. |
spark
hot spot on cylinder |
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Pre ignition produces a … noise
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pinging
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Magneto supplies … to ...
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hi tention voltage
spark plugs |
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…. at magneto turns armature quickly during start to …..
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impulse coupling
increase hi tension current |
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retarded spark prevents ...
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prop kickback
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in a normally aspirated engine
… is low output power is limited at … |
mechanical efficiency
altitude |
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super/turbo charger increase the … efficiency of the engine
by maintaining …. at ... |
volumetic
compressed air see level conditions |
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In turbocharger , a … is driven by ...
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compressor
turbine |
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In turbochargers the turbine speed is regulated by ...
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waste gate
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In turbochargers
the waste gate is … @ sea level to ... |
fully open
prevent overboosting |
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In turbochargers
the waste gate … gradually with … thus ….. |
closes
altitude maintaining Px @ SL |
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Turbocharged engine critical altitude
A max altitude @w engine can achieve ….. at …. |
rated HP
waste gate fully closed |
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Full throttle height
@w throttle valve is …. for specific .../... |
fully open
boost / RPM |
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MAP?
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Manifold Absolute Pressure
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MAP is … @ ...
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pressure
inlet manifold |
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Most heat @ turb engine is at ..
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bearing
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engine oil types (2)
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mineral
synthetic |
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a device that picks up metal contamination
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magnetic chip
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magnetic chip is fitted @ …
indicates possible ... |
scavenged oil path
future failure |
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Device allowing oil flow @ filter blockage
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oil filter bypass valve
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bearing seals at Turb Engine
is by …. |
air form compressor
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Octane Rating is the….
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ability to resist Detonation
(higher → less detonation ) |
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Avgas 80 color
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red
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Avgas 100 color
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green
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Avgas 100LL
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blue
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… is added to Avgas to reduce detonation
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lead
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Performance No. of fuel is
the …. and …. ability to …. |
weak mixture
rich mixture resist detonation (100/130) |
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chemically correct mixture ?
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15:1 by Weight
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Rich mixture ratio
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8:1
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Weak mixture ratio
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18:1
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Military jet engine fuel
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JP 5/8/4
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Military jet engine fuel contains … and ...
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corrosion
ice inhibiters |
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Avtur (fuel name)
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Jet A1
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Avtur is … grade
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kerosene
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Avcat (fuel name)
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Jet A
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Avcat is … grade
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kerosene
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Avtag (fuel name)
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Jet B
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Avtag contains …. and ….
(%) |
30% kerosene
70% gasoline |
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which fuel is called Wide Cut Fuel ?
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Jet B
. |
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Jet B features (3)
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more volatile
very low freezing point better cold weather performance |
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Wide Cut Fuel is a blend of … and … and between them at … range
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kerosene
gasoline distillation |
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Fuel additives
FS II |
fuel system icing inhibiter
& fungus fighting |
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Fuel additives
Biocide or …. is for |
Biobor
fungus , microbiological growth fighting |
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single point refueling is ...
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Pressurized system
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overwing refueling is ...
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gravity system
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Refueling point
Avgas is … in color Jet A1 is ... |
red
black |
