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________ indicates the malfunction of Low Stage Bleed Air Regulator and Shutt Off Valve or High Stage Bleed Air Regulator and Shutt Off Valve.
Over Pressure Indicator
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The High Stage Bleed Air Regulator and Shutt Off Valve is used during ______ throttle settings.
Low
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Which switch electrically controls the three primary bleed air valves ?
Air Source Switch
-
Wchich componet controls Ejector Shutoff Valve ?
EDCS Sensor/ Controller(EDC S/C)
-
What is the purpose of Ejector Shuttoff Valve ?
Increase the cooling efficiency of the heat exchanger during low airspeed under 160Knots, Ground operation and Over-tmperature conditions at high air speed over 160Knots.
-
Which componet provides input to the EDC S/C about acraft Atitude and Airspeed ?
CADC(Control Air Data Computer)
-
What are the two functions of Compressor Intel Temp Sensor ?
- (1) Air temperature above 370° and below 400°F Compressor Intel Temp Sensor signals the EDC SC to open the Ejector Shutoff Valve to increase the cooling efficiency.
- (2) Air temperature exceeds 465°F, Compressor Intel Temp Sensor signals the EDC SC to reduce the airflow through Variable Air Pressure Regulator and Shutoff Valve(VAPR)
-
What are the three functions of Turbaine Inlet Temp Sensor ?
- (1) Temperature above 180° and 225°F, Ejector valve de-energized open by EDC S/C to increase cooling in heat exchanger
- (2) Temperature exceeds 225°F, EDC S/C siganals Converter Transducer to reduce Variable Air Pressure Regulator and Shutoff Valve(VAPR) optput.
- (3) Temperature exceeds 280°F EDC S/C places system in Cutback Mode. System operates on low stage air.
-
What is the purpose of Servo Air System ?
Servo air is used to actuate valves to open or closed.
-
What is the purpose of Ground Service Check Valve?
The Ground Service Check Valve incorporates a dual chek valve that prevents the discharge of engine bleed air during flight and on ground.
-
Which four switch energize the Air Over-Temperature Relay ?
- (1) Hot Air Bypass Thermostatic Swithch
- (2) Turbine Inlet Shutoff Thermostatic Switch
- (3) Fuel Pressure Supply Thermostatic Swithch
- (4) Cockpit Supply Thermostatic Switch
-
How to make V-Couplings air tight.
V-Couplings use a reusable E-seal gasket to form an air tight seal.
-
What is the over-pressure relief setting of the Servo Air Pressure Regulator ?
25 PSIG
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What are the materials used to construct Hot Air Ducts?
Hot air ducting is constructed of Inconel and Steel.
-
What are the materials used to construct Cold Air Ducts?
Cold air ducting is constructed of Aluminum Alloy.
-
________ couplings are used for hot air ducts only.
V-Couplings.
-
________ couplings are used for cold air ducts only.
Low pressure flexible couplings.
-
________ couplings are used for Hot and Cold air ducts.
Fixed cavity flexible couplings.
-
What are the three things ECS Tester is used to isolate system malfunction by monitoring?
- (1) Pressure
- (2) Temperature
- (3) Electrical signals
-
Where did the ECS Tester get power from?
From the Aircraft.
-
Which component serves as a circuit braken in the ECS Tester?
On/Off Switch
-
How to interface BP(Base Panel) with the DDP(Digital Data Panel) in the ECS Tester?
Using the Tester Interconnect Cable.
-
Where to connect Auxiliary Temperature Probe in ECS Tester?
Auxiliary Temperature Input
-
What is the use of Auxiliary Temperature Probe?
Measures ambient or internal duct temperature.
-
ECS Tester is calibrated at ______ °F
32
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The test points marked High and Low are used when taking _______ voltage readings.
External
-
ECS Tester, Pressure knob is used in conjuntin with Pressure select handles and _____ .
Pressure input ports
-
In ECS Tester, 15 in H²O measures air pressure in _________.
Inches of water.
-
What are the 6 items that are kept in the ECS Tester Storage Compartment.
- (1) Multi-Meter leads
- (2) Pneumatic hoses
- (3) Cables
- (4) Unions for pneumatic hoses
- (5) Adapters
- (6) Auxiliary temperature probe
-
What is the first stage in the cooling process?
Primary and Secondary heat exchanges.
-
What prevents the turbaine from over-speeding?
Compressor turbine
-
Which componet removes the moisture from the conditioned air?
Water separator
-
Water separator removes the moisure from ______.
Conditioned air
-
What kind of lubrication system the cooling air turbine uses?
Air foil(a thin lair of air called Air foil or Air bearing)
-
The discharge temperature of the water separeator at 31,000 feet or above is _____.
0° F
-
The discharge temperature of the water separeator at 27,000 feet and below is _____.
35° F
-
The discharge temperature of the water separeator at 27,000 to 31,000 feet is _____.
Maintained proportional to altitude.
-
The pilot can pre-select any disired cabin temperature by using the _______.
Cabin Temp Selector Switch
-
Which componet aids the Cabin/Cockpit sensor to respond quicker to cabin temperature changes?
Axial Flow Sensor Fan
-
The Cabin Temperature Sensor have a _______ coefficent sensing elemet to provide temperatue signals to the Cabin Temperature Sensor Controller.
Negative.
-
What are the 5 componets engaged in Automatic Cabin Temperature control?
- (1) Cabin Temperature Sensor/Controller
- (2) Cabin Temperature Selecor Switch
- (3) Cabin/Cockpit Temperature Sensor
- (4) Duck Temperature Sensor
- (5) Cabin Temperature control Valve
-
Which componet actuate th Micro switches?
Defog lever.
-
Placing the defog lever to the ______ position will energize the three minute time delay module.
3/4th to MAX
-
What is the temperature of air entering to the equipment bay?
Between 0° F to 35°F
-
What are the two purpose of equipment cooling?
- (1) Extend component life
- (2) Prevent overheating
-
Which componet modulates cooling air flow to the electronic equipment to maintain desired cooling?
Equipment Cooling Modulating Valve
-
Which component controls the Equipment Cooling Modulating Valve and Priority Valve?
Equipment Cooling Sensor Controller
-
Which component energizes the Environmental Control Relay, when 64PSI for 60 Seconds?
Low flow sensor in the Equipment Cooling Sensor Controller.
-
Which component regulates the suply of cooling air to the lower equipment bay?
Lower equipment bay cold air shutoff valve
-
What provides a connection/Disconnection port for an external air conditioner?
Ground cooling receptacle
-
Which valve in the Equipment Cooling System, can not be closed in flight?
Radar cooling shutoff valve
-
Which component dodulates only after Equipment Cooling Modulating Valve is fully open and provides added restriction to cockpit airflow?
Priority Valve
-
Which cooling system is used on equipment that generates excessive heat?
Forced Air
-
Which cooling system is used where excessive heat is not generated?
Free Convection Cooling System.
-
Forced air system maintains a discharge temperature at ______.
140° F
-
How is cooling air supplied during ground maintenance operation with out operating the Aircraft A/C system?
Ground Air Conditioning Cart connected to the Ground Coling Receptacle.
-
In the Equipment Cooling System, Which component receives a "Sample" portion of cold air?
Equipment Cooling Sensor Controller
-
If the Equipment Hot Light comes on, What are the options the Pilot have?
- (1) Increase engine power
- (2) Turn off non-essential equipments.
-
Where is the air tapped from for the Canopy seal system?
The outlet side of the Regenerative Heat Exchanger.
-
When the canopy is closed and locked, a pluncher is released on the regulator and the regulator will inflate the sel to ____ above cabin pressure.
25 PSID
-
Canopy Seal System the over pressure relief valve is set at _____ PSI
34
-
In the fighter pressurization system, the Cabin Air Pressure Regulator Valve is a ________ type.
Fixed isobaric Single differential
-
Differential 23,000ft to MAX operation altitude, the pressure is maintaind at _______________.
5 PSID above the atmospheric pressure.
-
In the Isobaric range, cabin pressure is maintained at ________ feet.
8000
-
The Unpressurised range(Between sea level and 8,000 feet) cabin pressure is?
Cabin pressure is equels to atmospheric pressure.
-
What are the three functions of the Cabin Pressure Dump Relief Valve?
- (1) Dump cabin pressure
- (2) Excessive pressure relief
- (3) Negetive pressure relief
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