What controls the waste Level Balancing in flight ? A - The Vacuum System Controller controls the Level Balancing automatically. *B - A control handle operated by the cabin crew. C - A control switch located in the cockpit. How many toilet service panels are fitted on the aircraft ? *A - One. B - Two. C - Three. What is the waste balancing handle used for ? *A - To equalize level between tanks. B - To flush the waste tanks. C - To drain the waste tanks.
Where is the waste quantity displayed ? *A - On the PIM. B - On the toilet service panel. C - On both panels.
IRANAIR EXAM DON’T PAY ATTAENTION TO MARKED ANSWER
AIRCONDION 1- WHICH OF THE FOLLOWING VALVES WORK AS PACK CONTROLLER BACKUP? Temperature control valve Bypass valve Anti-ice valve
2- WHAT CONDITION PROHIBITS THE EMERGENCY RAM AIR INLET FLAP OPENING? A/C altitude more than 10000 ft Ditching selected ON Differential pressure more than 1 psi
3- WHICH OF THE FOLLOWING CONDITIONS TRIGGERS HOT AIR FAULT LIGHT? Pack 1 or 2 overheat L+R cabin fan fault Cockpit or cabin zones duct overheat
4- LOW PRESSURE GROUND INLET SUPPLIES THE … Pack 1 & 2. Mixer unit. X-bleed duct.
5- WHAT IS THE AIR SOURCE OF THE TRIM AIR VALVES? Mixer unit Trim Air Pressure Regulating Valves (TAPRVs) Recirculation fans
6- IN THE AVIONIC COMPARTMENT VENTILATION SYSTEM, THE AIR WILL BE DISCHARGED VIA … Overboard valve and underfloor valve. Air outlet valve. ventury.
7- AFT AND BULK CARGO VENTILATION AIR IS EXTRACTED VIA … Aft outflow valve. Forward and aft outflow valves respectively. Forward outflow valve
8- WHICH TEMPERATURES ARE INDICATED IN THE ECAM BLEED PAGE? Compressor discharge temperature. and pack outlet temperature Pack inlet temperature and pack outlet temperature Pack inlet temperature and compressor discharge temperature
9- WHERE IS THE ACCESS TO THE MIXER UNIT?
Forward cargo compartment, aft wall Under the belly fairing Aft cargo compartment, side wall
10- WHICH OF THE FOLLOWING CASES DOES NOT RESULT IN THE CPC CHANGEOVER? Outflow valve actuator failure A/C landing Operating CPC failure
11- WHAT ARE THE MAIN DEVICES USED BY THE PACK CONTROLLER FOR CONTROLLING THE PACK OUTLET TEMPERATURE? Ram air doors and pack FCV Pack FCV and bypass valve Ram air doors and temperature control valve (TCV)
12- THE DESIRED TEMPERATURE OF EACH CABIN ZONE IS DUE TO THE MODULATION OF … Trim Air Pressure Regulating Valve. Pack FCV. Trim air valve.
13- FOR THE AIR CONDITIONING BAY VENTILATION SYSTEM, TURBOFAN OPERATES WHEN … A/C is on the ground. Both packs are ON. It is selected by a pushbutton.
APU 1- MARK THE WRONG ANSWER. The AVAIL light comes on green above 95%. During shutdown the AVAIL light goes off below 88%. The START p/b initiates the APU start sequence. The ON light comes on blue
above 95%.
2- WHEN DOES THE APU AIR INTAKE FLAP OPEN? When the master switch is selected ON. Whenever the aircraft is on the ground regardless of master switch position. When the start switch is selected ON.
3- THE INLET GUIDE VANE ASSEMBLY CONTROLS THE AIRFLOW THROUGH THE POWER SECTION. (2) THE INLET GUIDE VANE ACTUATOR IS OPERATED BY HIGH PRESSURE FUEL SUPPLIED FROM THE FUEL CONTROL UNIT. (3) THE INLET GUIDE VANE OPENING ANGLE DEPENDS ON THE BLEED AIR DEMAND. ACCORDING ABOVE STATEMENT Only (1) and (3) are true. Only (2) and (3) are true. (1), (2), and (3) are true.
4- IN APU FUEL SYSTEM Fuel muscle pressure is used to operate the surge valve and the Inlet Guide Vane and bleed load valve actuators. The flow divider and drain valve divides fuel into primary and secondary flows. Fuel distribution is assumed by twenty dual fuel nozzles.
5- CHOOSE THE WRONG ANSWER REGARDING APU OIL MSYSTEM. The Oil Heater increases the temperature of the oil when the oil temperature is too low and the APU MASTER switch is set to ON. The only component of the oil system controlled by the ECB is the de-oiling solenoid valve. Lube and scavenge filters are equipped with visual clogging indicators.
6- IN APU AIR SYSTEM Bleed load valve is a modulating valve. Compressor second stage discharge air is used to operate the compartment cooling valve and the bleed load valve. The pneumatic cooling valve is fully closed in altitude.
7- DURING APU START AT 60% RPM
The ECB cuts off electrical power to the starter and ignition is cut off. The de-oiling solenoid valve closes, if it was open. The ON light in the START push button goes off.
8- The ECB controls: (1) the fuel metering valve, (2) the fuel solenoid valve, (3) the ecology drain valve. According above statement Only (1) is true. Only (1) and (2) are true. All (1), (2), and (3) are true.
9- WHICH OF THE FOLLOWING PROTECTIVE SHUTDOWNS ARE ACTIVE ALL THE TIME Over speed, emergency and ECB 1A shutdown. Over speed, emergency and low oil pressure. ECB 1A shutdown, low oil pressure, and air intake flap not open.
10- OPERATING LIMITATION OF APU IS Two start attempts are allowed without a cool down period and A 60 minutes cool down after the second start attempt. Two start attempts are allowed without a cool down period. A third attempt can be initiated after a one minute cool down period. A 60 minutes cool down period after the third start attempt. Three start attempts are allowed without a cool down period and A 60 minutes cool down after the third start attempt.
11- THE BLEED FLOW SENSOR IS USED TO CONTROL The APU compartment cooling valve. The APU bleed valve. The APU surge control valve.
12- WHAT IS THE MAXIMUM ALTITUDE AT WHICHTHE APU MAY BE STARTED USING THE BATTERIES ONLY? 20,000 ft.
25,000 ft. 30,000 ft.
DOOR 1- IN THE CARGO LOADING CONTROL PANEL, THE DOOR SILL LATCH CONTROL HANDLE WILL BE USED DURING … Loading. Unloading. Loading/unloading.
2- IN THE BOTTOM OF THE DOORS PAGE OF THE PIM (PROGRAMMING AND INDICATING MODULE) A MESSAGE CAN BE SHOWN ABOUT … Residual pressure. Emergency actuator pressure. Slide pressure.
3- WHERE IS THE SLIDE INFLATION RESERVOIR FOR A CABIN DOOR? Lower side of the door Aft cargo compartment Forward cargo compartment
4- ARMING LEVER SHOULD BE SECURED WITH THE SAFETY PIN WHEN IT IS IN THE … ARM position. DISARM position. ARM/DISARM position.
1- WHICH OF THE FOLLOWING COMPONENT IN THE CABIN DOOR SLOWS DOWN THE NORMAL OPENING/CLOSING PRO CESS? Damper and emergency operation cylinder
Support arm Guide arm
2- THE RED LIGHT FLASHING ON THE CABIN DOOR SHOWS THAT … The cabin pressure is too high. The cabin door in not locked. The cabin door emergency opening system is off.
3- WHICH OF THE CABIN DOORS CAN BE USED AS EMERGENCY EXIT? Type A doors (forward, mid and aft cabin doors) Type 1 doors (cabin doors aft of the wing trailing edge) All cabin doors (Type A and Type 1 doors)
4- WHICH OF THE FOLLOWING COMPONENT IN THE CABIN DOOR SLOWS DOWN THE NORMAL OPENING/CLOSING PROCESS? Damper and emergency operation cylinder Support arm Guide arm
5- PUTTING THE DOOR SILL LATCHES TO THE UP POSITION IS A NECESSARY STEP FOR … Forward/aft cargo door opening. Forward/aft cargo door closing. Forward/aft cargo door opening/closing.
FIRE 1- ENGINE FIRE WARNING ARE GENERATED IN CASE OF FIRE A (B) and FAULT B (A). FAULT A (B) and FAULT B (A) in less than 5 seconds.
In both cases of A and B answers.
2- SELECT THE WRONG ANSWER. The white SQUIB light comes on when AGENT pushbutton is pressed. The white SQUIB light comes on when the engine fire pushbutton is released out. The white SQUIB light comes on during the test.
3- IN CASE OF AN ENGINE FIRE DETECTED ON THE GROUND WHEN THE AGENT 1 PUSHBUTTON IS PRESSED, Fire bottle one and two are discharged in the engine compartment and the DISCH lights comes on. Fire bottle one is discharged in the engine compartment and the DISCH light comes on and then the second bottle must be discharged. Fire bottle one is discharged in the engine compartment and the DISCH light comes on and it is not necessary to discharge the second bottle.
4- ON THE GROUND, IN THE EVENT OF AN APU FIRE The APU fire light comes on red, accompanied by an external horn on the external power control panel. The horn will go off only when the fire is extinguished. Both A and B answers are true.
5- FROM THE APU FIRE CONTROL PANEL THE TEST PUSHBUTTON CHECKS THE CONDITION OF THE Fire detectors (loops A and B), Fire Detection Unit, and indications and warnings. Fire detectors (loops A and B), and Fire Detection Unit. Fire detectors (loops A and B).
6- WHICH STATEMENT IS TRUE REGARDING APU FIRE DETECTION SYSTEM? APU FDU is identical to the engine FDUs but they are not interchangeable. The discharge indicator (red disc) blows out in case of thermal discharge (overpressure).
There are two fire bottles for APU fire extinguishing.
7- IN AVIONICS SMOKE DETECTION SYSTEM: (1) THE SMOKE DETECTORS ARE OF THE IONISATION TYPE, AND ARE CONNECTED TO THE SMOKE DETECTION CONTROL UNIT. (2) THERE ARE TWO SMOKE DETECTORS INSTALLED ON THE AIR EXTRACTION DUCT OF THE VENTILATION SYSTEM. (3) THE SDCU NORMALLY ACTIVATES THE SMOKE WARNING WITH AN OR LOGIC. (4) SMOKE WARNING SIGNALS ARE SENT TO THE ECAM AND THE VENTILATION PANEL. ACCORDING TO ABOVE STATEMENT Only (1), (2), and (3) are true. Only (1), (2), and (4) are true. All (1), (2), (3), and (4) are true.
8- IN CARGO FIRE PROTECTION SYSTEM When the FWD AGENT pushbutton is pressed, the extinguisher agent from BTL 1 is released. Smoke warning signals are sent only to the cargo smoke panel. When the TEST pushbutton is pressed The smoke detectors are tested, The two red SMOKE lights come on, and the SQUIB lights and the BTL 1 and BTL 2 lights come on.
HYD 1- WHAT IS THE FUNCTION OF PRIORITY VALVE AND IN WHICH SYSTEM IS INSTALLED? It will cut the hydraulic pressure to some high demand users in case of low pressure condition and installed in green system It will cut the hydraulic pressure to some high demand users in case of low pressure condition and installed in blue system It will cut the hydraulic pressure to some high demand users in case of electric pump operation and installed in green system
2- GREEN SYSTEM LEAK MEASUREMENT (CHECK) NEEDS: Green system pressurization with electric pump Hydraulic ground cart with flow meter
Engine run and pressurization with EDP
2- GREEN SYSTEM LEAK MEASUREMENT (CHECK) NEEDS: Green system pressurization with electric pump Hydraulic ground cart with flow meter Engine run and pressurization with EDP
3- IN CASE OF ELECTRIC PUMP OVERHEAT: Electric pump turns off automatically Electric pump turns off automatically and fault light remains until ovht condition removed even switch is in off position Pilot must reset the system by electric pump push button switch to prevent electric motor damaged
4- THE PRESSURE TRANSMITTER WHICH PROVIDE PRESSURE INDICATION IS LOCATED: At the output port of EDPs On the power accumulators On the HP manifold
5- THE FUNCTION OF PRESSURE SWITCH IN THE AIR SYSTEM IS: To provide information for ECAM and overhead fault message in case of low pressure To provide signal to pneumatic system in order to supply air to the reservoir To provide information for reading gage at reservoir
6- WHAT CONNECTION TYPE IS USUALLY USED IN MANIFOLD MOUNTED COMPONENTS? B-nut and union connection Bobbin type Gasket and proper seal is used between component and manifold
7- RAT STOW PANEL IS LOCATED ON: Blue service panel Green service panel Yellow service panel
8- WHICH OF THE FOLLOWING FILTERS DOES NOT HAVE BYPASS LINE? EDP case drain filter, reservoir filling filter
Return line filter All of the above filters
9- WHAT IS THE REASON IF THE HYDRAULIC QUANTITY INDICATION DIFFERS BEFORE AND AFTER RESERVOIR PRESSURIZATION? There are some air bubbles in the hydraulic system and needs bleeding The gage is not healthy and must replace The air contains some moisture and have to be dried
10- IN CASE OF ONE ENGINE FAILURE OR ONE EDP INOPERATIVE CONDITION, WHICH STATEMENT IS CORRECT? The ram air turbine extends automatically The electric pump is used for some occasions Electric pump will run to the end of flight
11- ON ENGINE 1 AND ENGINE 4 THE FIRE SHUT OF VALVE IS CONTROLLED: By fire push sw on the overhead panel and HSMU (automatically) Only by HSMU in case of low quantity Only by fire push sw manually
OBSM 1- WHICH SYSTEM TYPE CAN MEMORIZE PREVIOUS FLIGHT FAILURES? System type 3 System type 2 System type 1
2- THE PREVIOUS LEG REPORTS CAN REMEMBER: Up to 63 legs before current leg 6 legs before current leg 256 legs concerning failure
3- AVIONIC STATUS PAGE SHOWS: All avionic systems which installed on the aircraft The state of all avionics systems
in flight or on ground, the identity of systems affected by, at least, one class 1 or class 2,internal or external failure at the moment of the request.
4- SYSTEM REPORT AND TEST LINE SELECT KEY IS SHOWN: In flight only On the ground only Both in flight and on the ground
5- SYSTEM REPORT/ TEST HAVE: One page containing failed systems only 6 pages containing all systems connected to CMC 3 pages containing type 1 systems connected to CMC
POWERPLANT 1- APPROACH IDLE IS A HIGHER IDLE RPM THAN NORMAL. IT IS SELECTED When the landing gear is down or when flaps are extended to CONF 3. Depending on air conditioning and anti-icing demand. When each item in A and B answers is met.
2- AT STEADY SPEEDS, ABOVE IDLE AND AT LOW ALTITUDE Both RACSB valves are closed. Only 5th stage air valve of RACSB is open. Only 9th stage air valve of RACSB is open.
3- CFM56C ENGINE N2 ROTOR CONSISTS OF A nine-stage compressor driven by a two-stage turbine. A ten-stage compressor driven by a single-stage turbine. A nine-stage compressor driven by a single-stage turbine.
4- DURING THRUST REVERSER STOWAGE Both isolation valve and deploy valve solenoids are energized. Only isolation valve solenoid is energized. Only deploy valve solenoid is energized.
5- ECU AUTOMATIC DE-ENERGIZATION OCCURS ON GROUND 5 minutes after aircraft power up. 15 minutes after engine shutdown. 15 minutes after FADEC GND PWR, if the CMS is not in menu mode.
6- IN CASE OF EIVMU FAILURE Automatic starting and dry cranking are no more available. Manual starting and wet cranking are no more available. Wet cranking and dry cranking are no more available.
7- IN FUEL RETURN VALVE LOW RETURN FUEL FLOW OPERATION Both V1 and V2 solenoids are energized. Both V1 and V2 solenoids are de-energized. V1 solenoid is energized and V2 solenoid is de-energized.
9- REMOTE CHARGE CONVERTER Receives signals from the No.1 BRG VIB and FFCC VIB sensors. Installed on the fan case. Both A and B answers are true.
10- SELECT THE TRUE ANSWER. ALL four engines are controlled by a single computer called ECU. Each engine is controlled by a computer called ECU that normally is powered by its own generator. Each engine is controlled by a computer called ECU that normally is powered by aircraft electrical network.
11- Select the true answer.. The VBV system provides booster airflow discharge to the fan airstream to match the LP/HP compressor flow at high power. The VSV system provides aerodynamic matching on the HPC stages and prevent engine surge. The VBV and VSV systems are electrically controlled by the ECU and pneumatically actuated by fan air.
12- SELECT THE WRONG ANSWER.
EIVMU controls the power shutdown for the ECU, igniters and the thrust reverser deployment. The data needed by the ECU for the auto-thrust is provided from the FMGECs via the FCU through the EIVMU. EIVMUs send air data parameters to the ECU for engine control.
13- SELECTING THE “ENG MAN START” P/B “ON” WILL OPEN THE START VALVE If the ENG START selector is not in NORM position. And turn on ignition A & B. Turn on ignition A & B and open the LP fuel valve if the FIRE p/b is pushed in.
14- STARTER IS LOCATED ON THE Right forward side of AGB. Right aft side of AGB. Left forward side of AGB.
15- STATION 49.5 IS LOCATION OF HP compressor discharge. LP turbine discharge. Exhaust gas temperature measuring plane.
16- THE ECU AUTOMATICALLY SELECTS CONTINUOUS IGNITION,WITH ENGINE RUNNING, WHEN Nacelle anti-ice is ON, slats are extended, takeoff power is selected, and an engine flameout is detected. Nacelle anti-ice is selected on, the takeoff power is selected, and an engine flameout is detected. Nacelle anti-ice is selected on, and an engine flameout is detected.
17- THE ECU CONTROL LOGIC OF FUEL RETURN VALVE IS MAINLY BASED ON THE Engine oil temperature. IDG oil temperature. Fuel temperature.
18- THE HYDRAULIC CONTROL UNIT IS HYDRAULICALLY SUPPLIED THROUGH THE SHUTOFF VALVE WHICH OPENS DEPENDING ON THE TLA POSITION SIGNAL COMPUTED BY THE
EIVMU. ECU. FCPC.
19- THE SOLENOID VALVES INCLUDED IN THE HYDRAULIC CONTROL UNIT IS CONTROLLED BY EIVMU. ECU. FCPC.
20- THE STARTER VALVE ACCESS DOOR PROVIDED FOR MANUAL OVERRIDE OPERATION IS LOCATED ON THE Fan cowl, left side. Fan cowl, right side. Thrust reverser, left side.
22- WHEN IS THE DOOR STOWED SIGNAL SENT TO THE ECU? At less than 94 % of reverser system travel. As soon as stowing is selected in the cockpit. When all doors are at 0.7 % of their travel.
23- WHICH OF THE FOLLOWING GENERATES LOGIC TO AUTHORIZE THE THRUST REVERSER DEPLOYMENT THROUGH THE INHIBITION RELAY? EIVMU. ECU. FCPC.
24- WHICH STATEMENT IS TRUE.? FADEC FAULT happens when a class 1 "No Go " fault is detected on the FADEC system by the ECU. FADEC FAULT happens when when there is a total loss of control of the ECU. FADEC FAULT on the ground.
STRUCTURE 1- WHICH MATERIAL IS USED FOR THE A/C RADOME? Composite material Al Alloy Steel alloy
2- WHICH PART OF THE FUSELAGE IS ATTACHED TO THE WING CENTER BOX? Forward fuselage section (section 14) Center fuselage section (section 15) Rear fuselage section (section 16)
3- WHICH PART OF THE FUSELAGE IS NOT AIR PRESSURIZED? Bulk cargo compartment Avionic compartment Air conditioning bay
4- WHICH OF THE FOLLOWING CODES REPRESENTS THE ZONE NUMBER FOR THE LOWER HALF FUSELAGE? 150 250 450
WATER WAST 1- VACUUM GENERATOR OPERATES … Only on ground. Only in flight. On ground or at low altitudes.
2- WHERE IS THE POTABLE WATER TANK? In the aft/bulk cargo compartment, R/H
