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Texan > SYS - Electrical > Flashcards

SYS - Electrical Flashcards

1
Q

What is the rating of the starter/generator?

A

28vdc, 300amp

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2
Q

Number and names of batteries?

A

Two, battery, and auxiliary battery

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3
Q

Two main buses?

A

Battery bus and generator bus

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4
Q

What isolates the two main buses?

A

Bus tie switch

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5
Q

What provides primary aircraft power?

A

Starter/generator

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6
Q

Can the starter/generator power all equipment on both the generator and battery buses?

A

Yes

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7
Q

Is their sufficient excess power from the starter/generator to service all the equipment on both main buses as well as charge both batteries?

A

Yes

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8
Q

Where is the generator control unit?

A

Under the right aft cockpit side panel

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9
Q

What does the generator control unit provide for? (3)

A
  • overvoltage protection
  • undervoltage protection
  • overload protection in event of generator malfunction
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10
Q

Is there a generator switch in each cockpit?

A

Yes

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11
Q

How are the two generator switches interlocked?

A

Electrically

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12
Q

Which generator switch has control of the generator?

A

Which ever one is switched to on

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13
Q

What happens to the other generator switch when one is moved to on?

A

The other one moves to off

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14
Q

What buses is the Generator bus divided into? (4) And how?

A

FWD GEN bus which powers the AFT GEN Bus and the FWD AVI Bus. The FWD AVI Bus continues on to power the AFT AVI Bus.

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15
Q

What buses is the battery bus divided into? (4) And how?

A

FWD battery bus powers the AFT battery bus and the FWD AVI Batt Bus. The FWD AVI Batt Bus continues to power the AFT AVI Batt Bus.

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16
Q

When is the hot battery bus powered?

A

Anytime the battery is installed on the aircraft

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17
Q

What is powered by the hot battery bus? (9)

A

BEFORECC’S

B attery
E emergency flaps
F FDR maintenance
O OBOGS
R am air valve
E ELT
C hip detect 
C locks
S pare
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18
Q

Power for all avionics and radios in both cockpits is powered through the Avionics Master switch except for? (2)

A
  • backup VHF control unit

- VHF transceiver

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19
Q

When the bus tie switch is in NORM what powers both the generator and battery buses?

A

The generator powers both the generator and battery buses simultaneously

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20
Q

When the bus tie switch is in the open position, what powers each bus?

A

The respective generator and battery powers their own Bus and are isolated from each other.

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21
Q

What cockpit indication is there when the bus tie switch is open and the buses are isolated?

A

Yellow BUS TIE on CAS

22
Q

Rating of the battery?

A

24v 42 amp-hour

23
Q

Rating of the auxiliary battery

A

24v 5 ampere-hour

24
Q

Purpose of the battery? (2)

A
  • power for engine start

- power all systems in event of generator failure (with bus tie closed)

25
Q

What can’t battery power?

A

Air conditions system

26
Q

Which battery switch has control?

A

Which ever one is on - the other automatically moves to off electrically

27
Q

What does the auxiliary battery do?

A

Power a minimum number of systems and avionics in event of failure of generator and primary battery

28
Q

How aux battery controlled?

A

Aux bat switch in front cockpit

29
Q

Can aux Batt switch be controlled by rear cockpit?

A

No

30
Q

When is aux Batt tested?

A

After application of battery power

31
Q

Where is aux Batt test switch?

A

Left console test panel in front cockpit

32
Q

How test aux Batt?

A

Hold aux Batt test switch forward for min 5 sec, and indicator light illuminates as long as switch is held forward

33
Q

Can the external power system power all systems?

A

Yes

34
Q

Which bus does the external power system use and how is it controlled?

A

Battery bus, through the battery switch (must be on)

35
Q

Will overvoltage automatically disconnect external power?

A

Yes

36
Q

Three main interior lighting groups?

A

Flood, side, instruments

37
Q

How MFD lighting controlled?

A

Independent lighting controls on each MFD

38
Q

How can BFI brightness be adjusted? (2)

A
  • through instrument adjustment knob

- through the BFI itself through the M button and Baro knob

39
Q

Where can the utility lights be moved to?

A

Right canopy rail to use as area or map light

40
Q

When will the landing light extend?

A

With the gear

41
Q

When will the landing light illuminate? (2)

A

With gear down and locked, and switch on

42
Q

Where are the navigation lights?

A

Port and starboard on the leading edge wing tips, white navigation lights on the trailing edge wing tips

43
Q

Where are the anti collision strobe lights?

A

At each wing tip near the leading edge

44
Q

How often to anti collision lights flash?

A

About 30 times per minute

45
Q

When the avionics master CB is pulled, and the avionics master switch is ON, will moving the switch to off de-power the avionics buses?

A

No

46
Q

Where is the taxi light and when will it only illuminate?

A

On the right main landing gear strut and only on when gear down and locked.

47
Q

Landing light and taxi light powered off which buses each? Think of which side they are on…

A

Landing light battery bus

Taxi light generator bus

48
Q

Minimum external power voltage and why?

A

22v so not to damage the battery

49
Q

Main power drain on the aux battery?

A

Comm 2

50
Q

Will the aux battery automatically turn on upon failure of the primary battery?

A

No - it must be activated by the aux battery switch

Texan (19 decks)

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