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Q400 > SYSTEMS PC-12 > Flashcards

SYSTEMS PC-12 Flashcards

0
Q

WHAT SETS OF THE PUSHER AND SHAKER

A

EACH COMPUTER CAN ACTIVATE THE SHAKER

BUT BOTH COMPUTERS MUST AGREE BEFORE THE PUSHER IS ACTIVATED

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1
Q

STICK SKAKER PUSHER

A

USES 2 COMPUTERS
A LEFT AND RIGHT HAND COMPUTER
EACH COMPUTER RUNS OF INPUT SIGNALS FROM ITS ASSOCIATED AOA SENSER AND AIR TO GROUND SQUAT SWITCH

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2
Q

WHEN DOES THE SHAKER PUSHER BECOMES ACTIVE ?

A

THE SHAKER BECOMES ACTIVE RIGHT AFTER LIFT OFF

THE PUSHER BECOMES ACTIVE 5 SECONDS AND DEACTIVATES ABOVE 163KIAS

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3
Q

WHAT IF THE PUSHER CANNOT BE TESTED ON THE GROUND ?

A

MAINTENANCE MUST BE CALLED AND TAKE OFF IS NOT PERMITTED

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4
Q

WHAT IS PUSHER ICE MODE ?

A

WHEN PROP DEICE AND SEPARATOR ARE ACTIVE
[PUSHER ICE MODE]
THE ANGLES OF ATTACK DEFINED ARE REDUCED BY 8 DEGREES

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5
Q

ELECTRICAL SYSTEM

A 
28 VDC SYSTEM 
BATTERY IS 24 VDC 
IN THE EVENT OF A DUAL GEN FAILURE THE BATERY CAN SUPPLY POWER AT 
20MIN AT 60 AMPS 
30MIN AT 50 AMPS
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6
Q

GEN 1

A

FUNCTIONS TO TURN THE ENGINE DURING STARTING SEQUENCE

PRIMARY SPURCE FOR 28 VDC WHEN THE ENGINE IS RUNNING.

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7
Q

HOW MANY LOADS CAN GEN 1 SUPPLY ?

A

MAXIMUM LOAD OF 300AMPS WITH A 450 LOAD PERMISSIBLE FOR 2 MINUTES FOR EACH HOUR OF OPERATION

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8
Q

CAN GEN 1 SUPPLY THE WHOLE AIRCRAFTS ELECTRICAL SYSTEM ?

A

.

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9
Q

HOW DOES THE PC 12 PREVENT OVER HEATING OF THE GENS ?

A

THERES AN AIR FOW COOLING DUCT ON THE LEFT SIDE OF THE ENGINE COWLING

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10
Q

INVERTERS

A

THEY FUNCTION TO ONVERT 28VDC TO 26VAC

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11
Q

WHAT ARE THE ESSENTIAL BUSSES ?

A

THE GEN BUS THE GEN 2 BUS AND THE BATTER BUS

THE [ESSENTIAL BUS CAWS] COMES ON WHEN THE VOLTS DROP BELOW 18V

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12
Q

EXTERNAL POWER SYSTEM

A

GPU MUST PROVIDE 27-30VDC AT A MIN OF 500AMPS FOR ALL ELECTRICAL-POWERED SYSTEMS.

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13
Q

WHAT IS THE MIN VOTLS FOR A BATTERY START AND OR A GPU START ?

A

24V FOR A BATTERY START

20V FOR A GPU START

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14
Q

DESCRIBE THE POWER LIINE WHEN THE ENGINE IS RUNNING AND THE GENS ARE BOTH ON LIINE

A

THE BUS TIE IS CLOSED
THE GEN 2 IS OPEN
GEN 1 POWERS EVERYTHING EXEPT THE GEN 2

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15
Q

WHAT HAPPENS WHEN GEN 2 FAILS ?

A

THE GEN 2 TIE CLOSES AND THE GEN 1 POWERS THE BATTER AND THE GEN 2 TIE

16
Q

WHAT HAPPENS WHEN GEN 1 FAILS ?

A

GEN 2 AND GEN TIE ARE CLOSED
THE GEN 2 CHARGES THE BATTERY AND POWERS EVERYTHING EXCEPT THE NON ESSENTIAL BUS, WHICH AUTOMATICALLY SHEDS POWER TO ANYTHING ON THE BUS
IF YOU NEED TO OPERATE LANDING GEAR, THE NO ESSENTIAL BUS OVERRIDE SWITCH MUST BE USED.

17
Q

WHAT HAPPENS WHEN BOTH GENS ARE OFF LINE ?

A

BOTH THE GEN TIE AND THE GEN 2 TIE WLL BE CLOSED ALLOWING THE BATTERY TO SUPPLY THE BUSSES

18
Q

HOW IS THE BATTERY ISOLATED IN THE EVENT OF AN OVERLOAD FROM EITHER GENS ?

A

WHEN GEN TIE EXCEEDS 220 AMPS
WHEN GEN 2 EXCEEDS 115 AMPS
THE TIE WILL OPEN AND ISOLATE THE BATTERY.

19
Q

LANDING GEAR

A

THE MAIN GEAR IS HELD UP BY HYDRAULICS AND ARE HELD DOWN BY MECHANICAL-DOWN LOCKS
THE NOSE GEAR IS IS HELD DOWN BY THE OVER-CENTER LOCKING DESING

20
Q

WHEN WILL THE TAXI AND LANDING LIGHT WORK ?

A

WHEN ALL THE 3 GEAR ASSEMBLIES ARE DOWN AND LOCKED

21
Q

HYDRAULIC POWER PACK

A

PRODUCES 2900 PSI
IF THE PUMP FAILS , IT WILL HOLD THE GEAR UP FOR 200 MIN
IF THE PRESSURE FALLS BETWEEN 1800 PSI THE [HYD CAWS] ILLUMINATE
ON THE GROUND MEANS THE PUMP HAS CYCLED MORE THEN 6 TIMES

22
Q

CABIN PRESSURIZATION SYSTEM

A

MAX CABIN DIF IS 5.75

SAFTEY VALVE OPENS AT 6.35 AND MAX DIFF IS 6.5

23
Q

OXYGEN SYSTEM

A

O2 CYLINDER IS LOCATED IN THE HELL HOLE
OVER PRESSURE PROTECTION PROVIDED BY A RELIEF VALVE
THE GREEN RUPTURE DISCK GOES 2775
CYLINDER IS CHARGES 1850 PSI

24
Q

HOW LONG WILL A FULLY LOADED O2 CAN LAST FOR ?

A

2 CREW AND 9 PAX FOR 10MIN

25
Q

SURFACE DE-ICE SYSTEM

A

BOOTS ARE HELD BY VACUUM AND INFLATED BY AIR PRESSURE

OPERATES BETWEEEN 14-16PSI

26
Q

WHEN WILL THERE BE A DE ICE BOOT FAURE ?

A

WHEN PLEASURE FALLS BELOW 10PSI

27
Q

PROP DE ICE

A 
ENERGIZES OPPOSING BLADES 
3 MODES
GREATER THEN 0-SYSTEM IS ON STAND BY 
0-16 SYSTEMS WORKS 45 SEC
GREATER THEN 16 WORKS FOR 90 SEC
28
Q

FUEL SYSTEM

A

2 MAIN TANKS AND 2 COLLECTOR

29
Q

WHATS HAPPENING WHEN THE [ LOW FUEL PRESS ] CAWWS COMES ON

A

MEANS THAT COLLECTOR TANK HAS
20GALONS
135LBS
17MIN OR 34 MINS IN TOTAL

30
Q

TOTAL FUEL CAPACITY

A

406.8 GALLONS 2735.5LBS

402 GALLONS 2700 ILBS USABLE

31
Q

HIGH PRESSURE PUMP

A

800 PSI

32
Q

FUEL PRESSURE SWICTH

A

LOCATED BETWEEN THE COLLECTOR TANK AND THE LOW PRESSURE PUMP

33
Q

FUEL BALANCING

A

AUTO BALANCING OCCURS WHEN THERE IS A DEF OF 5% OR 2LED SEGMENTS
3 LCD SEGMENTS (178) IS THE MAX AND BALANCING IS REQUIRED
THE AUTO SYSTEM CAN HANDE UP TO 6LCD SEGMENTS THEN MANUAL BALANCING IS REQUIRED

34
Q

WHAT DOES THE TIM INTERRUPT SWITH DO ?

A

IT DISRUPTS THE CURRENT TO THE ACTUATOR MOTOR

Q400 (37 decks)

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